diff --git a/module/bug/css/create.css b/module/bug/css/create.css
index 746ea7a8b8..f7b68c49fb 100644
--- a/module/bug/css/create.css
+++ b/module/bug/css/create.css
@@ -57,4 +57,4 @@ html[lang='de'] #keywordsAddonLabel, .task {width: 73px;}
 #openedBuildLabel {display: inline; position: relative; width: 50%; left: 14%;}
 #bugTypeInputGroup > .table-col {width: 40% !important;}
 
-.pri-text > .label-pri {padding: 1px 5px;}
+.pri-text > .label-pri {padding: 2px 6px;}
diff --git a/module/execution/control.php b/module/execution/control.php
index acce62c2ea..e3d6492020 100644
--- a/module/execution/control.php
+++ b/module/execution/control.php
@@ -1579,6 +1579,7 @@ class execution extends control
 
         $execution   = $this->commonAction($executionID);
         $executionID = $execution->id;
+        $deptID      = $this->app->user->admin ? 0 : $this->app->user->dept;
 
         $title      = $execution->name . $this->lang->colon . $this->lang->execution->team;
         $position[] = html::a($this->createLink('execution', 'browse', "executionID=$executionID"), $execution->name);
@@ -1586,7 +1587,7 @@ class execution extends control
 
         $this->view->title        = $title;
         $this->view->position     = $position;
-        $this->view->deptUsers    = $this->loadModel('dept')->getDeptUserPairs($this->app->user->dept, 'id');
+        $this->view->deptUsers    = $this->loadModel('dept')->getDeptUserPairs($deptID, 'id');
         $this->view->canBeChanged = common::canModify('execution', $execution); // Determines whether an object is editable.
 
         $this->display();
diff --git a/module/execution/lang/zh-cn.php b/module/execution/lang/zh-cn.php
index ce258165b5..decdee30da 100644
--- a/module/execution/lang/zh-cn.php
+++ b/module/execution/lang/zh-cn.php
@@ -351,8 +351,8 @@ $lang->execution->howToUpdateBurn      = "<a href='https://api.zentao.net/goto.p
 $lang->execution->whyNoStories         = "看起来没有{$lang->SRCommon}可以关联。请检查下{$lang->executionCommon}关联的{$lang->productCommon}中有没有{$lang->SRCommon}，而且要确保它们已经审核通过。";
 $lang->execution->projectNoStories     = "看起来没有{$lang->SRCommon}可以关联。请检查下项目中有没有{$lang->SRCommon}，而且要确保它们已经审核通过。";
 $lang->execution->productStories       = "{$lang->executionCommon}关联的{$lang->SRCommon}是{$lang->productCommon}{$lang->SRCommon}的子集，并且只有评审通过的{$lang->SRCommon}才能关联。请<a href='%s'>关联{$lang->SRCommon}</a>。";
-$lang->execution->haveBranchDraft      = "有%s条草稿状态或非本{$lang->executionCommon}关联分支的{$lang->SRCommon}无法关联到该{$lang->executionCommon}";
-$lang->execution->haveDraft            = "有%s条草稿状态的{$lang->SRCommon}无法关联到该{$lang->executionCommon}";
+$lang->execution->haveBranchDraft      = "有%s条非激活状态或不是{$lang->executionCommon}关联分支的{$lang->SRCommon}无法导入";
+$lang->execution->haveDraft            = "有%s条非激活状态的{$lang->SRCommon}无法导入";
 $lang->execution->doneExecutions       = '已结束';
 $lang->execution->selectDept           = '选择部门';
 $lang->execution->selectDeptTitle      = '选择一个部门的成员';
diff --git a/module/project/control.php b/module/project/control.php
index 76f901238a..6a5787404b 100755
--- a/module/project/control.php
+++ b/module/project/control.php
@@ -1610,11 +1610,12 @@ class project extends control
         $this->project->setMenu($projectID);
 
         $project = $this->project->getById($projectID);
+        $deptID  = $this->app->user->admin ? 0 : $this->app->user->dept;
 
         $this->view->title        = $project->name . $this->lang->colon . $this->lang->project->team;
         $this->view->projectID    = $projectID;
         $this->view->teamMembers  = $this->project->getTeamMembers($projectID);
-        $this->view->deptUsers    = $this->loadModel('dept')->getDeptUserPairs($this->app->user->dept, 'id');
+        $this->view->deptUsers    = $this->loadModel('dept')->getDeptUserPairs($deptID, 'id');
         $this->view->canBeChanged = common::canModify('project', $project);
 
         $this->display();
diff --git a/module/project/model.php b/module/project/model.php
index 21467dd1af..8d4afe8a87 100644
--- a/module/project/model.php
+++ b/module/project/model.php
@@ -1583,7 +1583,7 @@ class projectModel extends model
             ->exec();
         if(dao::isError()) return false;
 
-        if(!$oldProject->hasProduct and ($oldProject->name != $project->name or $oldProject->parent != $project->parent)) $this->updateShadowProduct($project);
+        if(!$oldProject->hasProduct and ($oldProject->name != $project->name or $oldProject->parent != $project->parent or $oldProject->acl != $project->acl)) $this->updateShadowProduct($project);
 
         /* Get team and language item. */
         $this->loadModel('user');
@@ -1744,7 +1744,7 @@ class projectModel extends model
 
             if(!dao::isError())
             {
-                if(!$oldProject->hasProduct and ($oldProject->name != $project->name or $oldProject->parent != $project->parent)) $this->updateShadowProduct($project);
+                if(!$oldProject->hasProduct and ($oldProject->name != $project->name or $oldProject->parent != $project->parent or $oldProject->acl != $project->acl)) $this->updateShadowProduct($project);
 
                 if(isset($project->parent))
                 {
@@ -2048,7 +2048,7 @@ class projectModel extends model
     {
         $product    = $this->dao->select('product')->from(TABLE_PROJECTPRODUCT)->where('project')->eq($project->id)->fetch('product');
         $topProgram = !empty($project->parent) ? $this->loadModel('program')->getTopByID($project->parent) : 0;
-        $this->dao->update(TABLE_PRODUCT)->set('name')->eq($project->name)->set('program')->eq($topProgram)->where('id')->eq($product)->exec();
+        $this->dao->update(TABLE_PRODUCT)->set('name')->eq($project->name)->set('program')->eq($topProgram)->set('acl')->eq($project->acl)->where('id')->eq($product)->exec();
 
         return !dao::isError();
     }
diff --git a/module/projectrelease/control.php b/module/projectrelease/control.php
index e69975257a..abcca88bf6 100644
--- a/module/projectrelease/control.php
+++ b/module/projectrelease/control.php
@@ -249,13 +249,14 @@ class projectrelease extends control
         if(strpos($sort, 'pri_') !== false) $sort = str_replace('pri_', 'priOrder_', $sort);
 
         $storyPager = new pager($type == 'story' ? $recTotal : 0, $recPerPage, $type == 'story' ? $pageID : 1);
-        $stories    = $this->dao->select("*, IF(`pri` = 0, {$this->config->maxPriValue}, `pri`) as priOrder")->from(TABLE_STORY)
-            ->where('id')->in($release->stories)
-            ->andWhere('deleted')->eq(0)
+        $stories    = $this->dao->select("t1.*,t2.id as buildID, t2.name as buildName,IF(`pri` = 0, {$this->config->maxPriValue}, `pri`) as priOrder")->from(TABLE_STORY)->alias('t1')
+            ->leftJoin(TABLE_BUILD)->alias('t2')->on("FIND_IN_SET(t1.id, t2.stories)")
+            ->where('t1.id')->in($release->stories)
+            ->andWhere('t1.deleted')->eq(0)
             ->beginIF($type == 'story')->orderBy($sort)->fi()
             ->page($storyPager)
             ->fetchAll('id');
-        $this->loadModel('common')->saveQueryCondition($this->dao->get(), 'story');
+        $this->loadModel('common')->saveQueryCondition($this->dao->get(), 'story', false);
 
         $stages = $this->dao->select('*')->from(TABLE_STORYSTAGE)->where('story')->in(array_keys($stories))->andWhere('branch')->eq($release->branch)->fetchPairs('story', 'stage');
         foreach($stages as $storyID => $stage) $stories[$storyID]->stage = $stage;
@@ -304,6 +305,7 @@ class projectrelease extends control
         $this->view->storyPager   = $storyPager;
         $this->view->bugPager     = $bugPager;
         $this->view->leftBugPager = $leftBugPager;
+        $this->view->builds       = $this->loadModel('build')->getBuildPairs($release->product, 'all', 'withbranch|hasproject', 0, 'execution', '', false);
         $this->display();
     }
 
diff --git a/module/projectrelease/view/view.html.php b/module/projectrelease/view/view.html.php
index b3ef89b38b..19ed80d00d 100644
--- a/module/projectrelease/view/view.html.php
+++ b/module/projectrelease/view/view.html.php
@@ -71,6 +71,7 @@
                     </th>
                     <th class='c-pri' title='<?php echo $lang->pri;?>'><?php common::printOrderLink('pri', $orderBy, $vars, $lang->priAB);?></th>
                     <th class="text-left"><?php common::printOrderLink('title',    $orderBy, $vars, $lang->story->title);?></th>
+                    <th class='c-build w-200px text-left'><?php echo $lang->build->common;?></th>
                     <th class='c-user'>   <?php common::printOrderLink('openedBy', $orderBy, $vars, $lang->openedByAB);?></th>
                     <th class='w-80px text-right' style='padding-right:20px'><?php common::printOrderLink('estimate', $orderBy, $vars, $lang->story->estimateAB);?></th>
                     <th class='w-90px'> <?php common::printOrderLink('status', $orderBy, $vars, $lang->statusAB);?></th>
@@ -98,6 +99,7 @@
                       echo html::a($storyLink,$story->title, '', "class='preview'");
                       ?>
                     </td>
+                    <td class='text-left' title='<?php echo $story->buildName?>'><?php echo $story->buildName?></td>
                     <td><?php echo zget($users, $story->openedBy);?></td>
                     <td class='text-right' style='padding-right:25px' title="<?php echo $story->estimate . ' ' . $lang->hourCommon;?>"><?php echo $story->estimate . $config->hourUnit;?></td>
                     <td>
@@ -167,6 +169,7 @@
                     </th>
                     <th class='text-left'><?php common::printOrderLink('title',        $orderBy, $vars, $lang->bug->title);?></th>
                     <th class='w-100px'>  <?php common::printOrderLink('status',       $orderBy, $vars, $lang->bug->status);?></th>
+                    <th class='c-build w-200px text-left'><?php echo $lang->bug->resolvedBuild;?></th>
                     <th class='c-user'>   <?php common::printOrderLink('openedBy',     $orderBy, $vars, $lang->openedByAB);?></th>
                     <th class='w-date'>   <?php common::printOrderLink('openedDate',   $orderBy, $vars, $lang->bug->openedDateAB);?></th>
                     <th class='c-user'>   <?php common::printOrderLink('resolvedBy',   $orderBy, $vars, $lang->bug->resolvedByAB);?></th>
@@ -191,6 +194,8 @@
                     <td>
                       <span class='status-bug status-<?php echo $bug->status?>'><?php echo $this->processStatus('bug', $bug);?></span>
                     </td>
+                    <?php $resolvedBuildName = zget($builds, $bug->resolvedBuild, '');?>
+                    <td class='text-left' title='<?php echo $resolvedBuildName?>'><?php echo $resolvedBuildName;?></td>
                     <td><?php echo zget($users, $bug->openedBy);?></td>
                     <td><?php echo helper::isZeroDate($bug->openedDate) ? '' : substr($bug->openedDate, 5, 11);?></td>
                     <td><?php echo zget($users, $bug->resolvedBy);?></td>
@@ -257,6 +262,7 @@
                     <th class='w-80px' title=<?php echo $lang->bug->severity;?>><?php common::printOrderLink('severity', $orderBy, $vars, $lang->bug->severityAB);?></th>
                     <th class='text-left'> <?php common::printOrderLink('title',      $orderBy, $vars, $lang->bug->title);?></th>
                     <th class='w-100px'>   <?php common::printOrderLink('status',     $orderBy, $vars, $lang->bug->status);?></th>
+                    <th class='c-build w-200px text-left'><?php echo $lang->bug->openedBuild;?></th>
                     <th class='c-user'>    <?php common::printOrderLink('openedBy',   $orderBy, $vars, $lang->openedByAB);?></th>
                     <th class='w-150px'>   <?php common::printOrderLink('openedDate', $orderBy, $vars, $lang->bug->openedDateAB);?></th>
                     <th class='w-50px'>    <?php echo $lang->actions;?></th>
@@ -295,6 +301,11 @@
                     </td>
                     <td class='text-left nobr' title='<?php echo $bug->title?>'><?php echo html::a($bugLink, $bug->title, '', "class='preview'");?></td>
                     <td><span class='status-<?php echo $bug->status?>'> <?php echo $this->processStatus('bug', $bug);?></span></td>
+                    <?php
+                    $openedBuildName = '';
+                    foreach(explode(',', $bug->openedBuild) as $buildID) $openedBuildName .= zget($builds, $buildID, '') . ' ';
+                    ?>
+                    <td class='text-left' title='<?php echo $openedBuildName?>'><?php echo $openedBuildName;?></td>
                     <td><?php echo zget($users, $bug->openedBy);?></td>
                     <td><?php echo $bug->openedDate?></td>
                     <td class='c-actions'>
diff --git a/module/release/control.php b/module/release/control.php
index 1fedaf1531..5e2b5508f0 100644
--- a/module/release/control.php
+++ b/module/release/control.php
@@ -185,14 +185,15 @@ class release extends control
         if(strpos($sort, 'pri_') !== false) $sort = str_replace('pri_', 'priOrder_', $sort);
 
         $storyPager = new pager($type == 'story' ? $recTotal : 0, $recPerPage, $type == 'story' ? $pageID : 1);
-        $stories = $this->dao->select("*, IF(`pri` = 0, {$this->config->maxPriValue}, `pri`) as priOrder")->from(TABLE_STORY)
-            ->where('id')->in($release->stories)
-            ->andWhere('deleted')->eq(0)
+        $stories = $this->dao->select("t1.*,t2.id as buildID, t2.name as buildName, IF(t1.`pri` = 0, {$this->config->maxPriValue}, t1.`pri`) as priOrder")->from(TABLE_STORY)->alias('t1')
+            ->leftJoin(TABLE_BUILD)->alias('t2')->on("FIND_IN_SET(t1.id, t2.stories)")
+            ->where('t1.id')->in($release->stories)
+            ->andWhere('t1.deleted')->eq(0)
             ->beginIF($type == 'story')->orderBy($sort)->fi()
             ->page($storyPager)
             ->fetchAll('id');
 
-        $this->loadModel('common')->saveQueryCondition($this->dao->get(), 'story');
+        $this->loadModel('common')->saveQueryCondition($this->dao->get(), 'story', false);
         $stages = $this->dao->select('*')->from(TABLE_STORYSTAGE)->where('story')->in(array_keys($stories))->andWhere('branch')->eq($release->branch)->fetchPairs('story', 'stage');
         foreach($stages as $storyID => $stage) $stories[$storyID]->stage = $stage;
 
@@ -238,6 +239,7 @@ class release extends control
         $this->view->storyPager    = $storyPager;
         $this->view->bugPager      = $bugPager;
         $this->view->leftBugPager  = $leftBugPager;
+        $this->view->builds        = $this->loadModel('build')->getBuildPairs($release->product, 'all', 'withbranch|hasproject', 0, 'execution', '', false);
 
         if($this->app->getViewType() == 'json')
         {
diff --git a/module/release/view/view.html.php b/module/release/view/view.html.php
index 6ec80c73bd..727313e5d5 100644
--- a/module/release/view/view.html.php
+++ b/module/release/view/view.html.php
@@ -73,6 +73,7 @@
                     </th>
                     <th class='c-pri' title=<?php echo $lang->pri;?>><?php common::printOrderLink('pri', $orderBy, $vars, $lang->priAB);?></th>
                     <th class="text-left"><?php common::printOrderLink('title',    $orderBy, $vars, $lang->story->title);?></th>
+                    <th class='c-build w-200px text-left'><?php echo $lang->build->common;?></th>
                     <th class='c-user'>   <?php common::printOrderLink('openedBy', $orderBy, $vars, $lang->openedByAB);?></th>
                     <th class='w-80px text-right'><?php common::printOrderLink('estimate', $orderBy, $vars, $lang->story->estimateAB);?></th>
                     <th class='w-90px text-center'> <?php common::printOrderLink('status', $orderBy, $vars, $lang->statusAB);?></th>
@@ -100,6 +101,7 @@
                       echo html::a($storyLink,$story->title, '', "class='preview'");
                       ?>
                     </td>
+                    <td class='text-left' title='<?php echo $story->buildName?>'><?php echo $story->buildName?></td>
                     <td><?php echo zget($users, $story->openedBy);?></td>
                     <td class='text-right' title="<?php echo $story->estimate . ' ' . $lang->hourCommon;?>"><?php echo $story->estimate . $config->hourUnit;?></td>
                     <td class='text-center'>
@@ -169,6 +171,7 @@
                     </th>
                     <th class='text-left'><?php common::printOrderLink('title',        $orderBy, $vars, $lang->bug->title);?></th>
                     <th class='w-100px'>  <?php common::printOrderLink('status',       $orderBy, $vars, $lang->bug->status);?></th>
+                    <th class='c-build w-200px text-left'><?php echo $lang->bug->resolvedBuild;?></th>
                     <th class='c-user'>   <?php common::printOrderLink('openedBy',     $orderBy, $vars, $lang->openedByAB);?></th>
                     <th class='w-date'>   <?php common::printOrderLink('openedDate',   $orderBy, $vars, $lang->bug->openedDateAB);?></th>
                     <th class='c-user'>   <?php common::printOrderLink('resolvedBy',   $orderBy, $vars, $lang->bug->resolvedByAB);?></th>
@@ -193,6 +196,8 @@
                     <td>
                       <span class='status-bug status-<?php echo $bug->status?>'><?php echo $this->processStatus('bug', $bug);?></span>
                     </td>
+                    <?php $resolvedBuildName = zget($builds, $bug->resolvedBuild, '');?>
+                    <td class='text-left' title='<?php echo $resolvedBuildName?>'><?php echo $resolvedBuildName;?></td>
                     <td><?php echo zget($users, $bug->openedBy);?></td>
                     <td><?php echo substr($bug->openedDate, 5, 11)?></td>
                     <td><?php echo zget($users, $bug->resolvedBy);?></td>
@@ -259,6 +264,7 @@
                     <th class='w-80px' title=<?php echo $lang->bug->severity;?>><?php common::printOrderLink('severity', $orderBy, $vars, $lang->bug->severityAB);?></th>
                     <th class='text-left'> <?php common::printOrderLink('title',      $orderBy, $vars, $lang->bug->title);?></th>
                     <th class='w-100px'>   <?php common::printOrderLink('status',     $orderBy, $vars, $lang->bug->status);?></th>
+                    <th class='c-build w-200px text-left'><?php echo $lang->bug->openedBuild;?></th>
                     <th class='c-user'>    <?php common::printOrderLink('openedBy',   $orderBy, $vars, $lang->openedByAB);?></th>
                     <th class='w-150px'>   <?php common::printOrderLink('openedDate', $orderBy, $vars, $lang->bug->openedDateAB);?></th>
                     <th class='w-50px'>    <?php echo $lang->actions;?></th>
@@ -297,6 +303,11 @@
                     </td>
                     <td class='text-left nobr' title='<?php echo $bug->title?>'><?php echo html::a($bugLink, $bug->title, '', "class='preview'");?></td>
                     <td><span class='status-<?php echo $bug->status?>'> <?php echo $this->processStatus('bug', $bug);?></span></td>
+                    <?php
+                    $openedBuildName = '';
+                    foreach(explode(',', $bug->openedBuild) as $buildID) $openedBuildName .= zget($builds, $buildID, '') . ' ';
+                    ?>
+                    <td class='text-left' title='<?php echo $openedBuildName?>'><?php echo $openedBuildName;?></td>
                     <td><?php echo zget($users, $bug->openedBy);?></td>
                     <td><?php echo $bug->openedDate?></td>
                     <td class='c-actions'>
diff --git a/module/testsuite/control.php b/module/testsuite/control.php
index 98b4023dc1..87254e67b7 100644
--- a/module/testsuite/control.php
+++ b/module/testsuite/control.php
@@ -89,7 +89,7 @@ class testsuite extends control
                 $privateNum++;
             }
         }
-        $suitesNum = !empty(count($suites, 0)) ? count($suites, 0) : 0;
+        $suitesNum = !empty($suites) ? count($suites) : 0;
         $publicNum = $suitesNum - $privateNum;
         $summary   = str_replace(array('%total%', '%public%', '%private%'), array($suitesNum, $publicNum, $privateNum), $this->lang->testsuite->summary);
 
diff --git a/module/upgrade/model.php b/module/upgrade/model.php
index 8edafef735..f3262ff000 100644
--- a/module/upgrade/model.php
+++ b/module/upgrade/model.php
@@ -756,6 +756,9 @@ class upgradeModel extends model
             case 'max3_3':
                 $this->addReviewIssusApprovalData();
                 break;
+            case 'max4_0_beta1':
+                $this->initReviewEfforts();
+                break;
         }
     }
 
@@ -7969,4 +7972,31 @@ class upgradeModel extends model
         }
         return true;
     }
+
+    /**
+     * Init review efforts.
+     *
+     * @access public
+     * @return void
+     */
+    public function initReviewEfforts()
+    {
+        $nodes = $this->dao->select('t1.id,t3.id as reviewID,t3.title,t2.id as approvalID,t1.extra as consumed')->from(TABLE_APPROVALNODE)->alias('t1')
+            ->leftJoin(TABLE_APPROVAL)->alias('t2')->on("t1.approval=t2.id")
+            ->leftJoin(TABLE_REVIEW)->alias('t3')->on("t2.objectID=t3.id")
+            ->where('t3.deleted')->eq('0')
+            ->andWhere('t2.deleted')->eq('0')
+            ->andWhere('t2.objectType')->eq('review')
+            ->andWhere('t1.extra')->ne('')
+            ->andWhere('t1.extra')->ne(0)
+            ->orderBy('t1.approval,t1.id')
+            ->fetchAll('id');
+        $this->loadModel('effort');
+        foreach($nodes as $node)
+        {
+            $this->dao->delete()->from(TABLE_EFFORT)->where('objectType')->eq('review')->andWhere('objectID')->eq($node->reviewID)->exec();
+            $this->effort->create('review', $node->reviewID, (int)$node->consumed, $node->title, $node->approvalID);
+        }
+        return true;
+    }
 }
diff --git a/www/theme/default/style.css b/www/theme/default/style.css
index 39a049cd7c..d878316af2 100644
--- a/www/theme/default/style.css
+++ b/www/theme/default/style.css
@@ -219,11 +219,11 @@ tbody tr td.c-actions .dividing-line {width: 1px; height: 16px; display: inline-
 
 .pri-text > .label-pri {padding: 1px 5px;}
 .pri-text > .label-pri, .pri-text > .label-severity {height: 20px;}
-.pri-text > .label-severity {background-size: 80%; background-position: 2px -130px;}
-.pri-text > .label-severity[data-severity="1"] {color: #FB2B2B; background-position: 2px 1px;}
-.pri-text > .label-severity[data-severity="2"] {color: #FF8058; background-position: 2px -31px;}
-.pri-text > .label-severity[data-severity="3"] {color: #FAAE1A; background-position: 2px -64px;}
-.pri-text > .label-severity[data-severity="4"] {color: #B89664; background-position: 2px -97px;}
+.pri-text > .label-severity {background-size: 85%; background-position: 1px -139px;}
+.pri-text > .label-severity[data-severity="1"] {color: #FB2B2B; background-position: 2px 0px;}
+.pri-text > .label-severity[data-severity="2"] {color: #FF8058; background-position: 2px -34px;}
+.pri-text > .label-severity[data-severity="3"] {color: #FAAE1A; background-position: 1px -69px;}
+.pri-text > .label-severity[data-severity="4"] {color: #B89664; background-position: 1px -104px;}
 
 .flow-block .footerbar span.label-success {background-color: #0DBB7D;}
 .flow-block .footerbar span.label-default {background-color: #9EA3B0;}
diff --git a/xuanxuan/extension/xuan/im/ext/bot/zentao.bot.php b/xuanxuan/extension/xuan/im/ext/bot/zentao.bot.php
new file mode 100644
index 0000000000..940530236b
--- /dev/null
+++ b/xuanxuan/extension/xuan/im/ext/bot/zentao.bot.php
@@ -0,0 +1,991 @@
+<?php
+class zentaoBot extends xuanBot
+{
+    /**
+     * Bot name.
+     *
+     * @var    string
+     * @access public
+     */
+    public $name = 'ZenTao';
+
+    /**
+     * Bot codename.
+     *
+     * @var    string
+     * @access public
+     */
+    public $code = 'zentao';
+
+    /**
+     * Command list, inits in init() since all commands are internal commands.
+     *
+     * @var    array
+     * @access public
+     */
+    public $commands = array();
+
+    /**
+     * Construct function, load lang of zentao and setup commands.
+     *
+     * @access public
+     * @return void
+     */
+    public function __construct()
+    {
+        if(isset($_SESSION['clientLang']))
+        {
+            if($_SESSION['clientLang'] == 'zh-cn') $this->name = '禅道';
+            if($_SESSION['clientLang'] == 'zh-tw') $this->name = '禪道';
+        }
+    }
+
+    /**
+     * Init bot, load model.
+     *
+     * @access public
+     * @return void
+     */
+    public function init()
+    {
+        $this->lang = $this->im->lang->im->bot->zentaoBot;
+
+        foreach(array('view', 'start', 'close', 'finish') as $command)
+        {
+            $this->commands[] = array('command' => $command, 'alias' => $this->lang->commands->$command->alias, 'description' => $this->lang->commands->$command->description, 'internal' => true);
+        }
+
+        $this->im->loadModel('task');
+        $this->im->loadModel('user');
+        $this->im->app->loadClass('pager', $static = true);
+
+        $this->users          = array_filter($this->im->user->getPairs('noclosed|noletter'));
+        $this->taskStatusList = array_filter($this->im->lang->task->statusList);
+        $this->help           = $this->lang->help;
+
+        $this->inited = true;
+    }
+
+    /**
+     * Close command.
+     *
+     * @param  array         $args  bot command arguments
+     * @access public
+     * @return object|string
+     */
+    public function close($args = array())
+    {
+        $args = $this->removeEqualSign($args);
+        foreach($args as $key => $value)
+        {
+            if(in_array(strtolower($value), $this->lang->condKeywords['task'])) unset($args[$key]);
+        }
+        $task = $this->closeTask($args);
+        return $task;
+    }
+
+    /**
+     * Finish command.
+     *
+     * @param  array         $args  bot command arguments
+     * @access public
+     * @return object|string
+     */
+    public function finish($args = array())
+    {
+        $originArgs = $args;
+        $args = array_filter(explode('=', implode('=', $args)));
+        foreach($args as $key => $value)
+        {
+            if(in_array(strtolower($value), $this->lang->condKeywords['task'])) unset($args[$key]);
+        }
+        return $this->finishTask($args, $originArgs);
+    }
+
+    /**
+     * View command.
+     *
+     * @param  array         $args   bot command arguments
+     * @param  int           $userID
+     * @param  object        $user
+     * @access public
+     * @return object|string
+     */
+    public function view($args = array(), $userID = 0, $user = null)
+    {
+        $pager = pager::init(0, 10, 1);
+
+        $pageSearchRegex = $this->lang->pageSearchRegex;
+        $pageIDKeywords  = $this->lang->condKeywords['pageID'];
+
+        $args = array_filter($args, function($arg) use ($pager, $pageSearchRegex, $pageIDKeywords)
+        {
+            $matches = array();
+            preg_match($pageSearchRegex, $arg, $matches);
+            if(count($matches) > 2)
+            {
+                if(in_array(strtolower($matches[1]), $pageIDKeywords))
+                {
+                    $pager->pageID = $matches[2];
+                }
+                else
+                {
+                    $pager->recPerPage = $matches[2];
+                }
+                return false;
+            }
+            return true;
+        });
+        $originArgs = $args;
+
+        $args = $this->removeEqualSign($args);
+
+        foreach($args as $key => $value)
+        {
+            if(in_array(strtolower($value), $this->lang->condKeywords['task']))
+            {
+                unset($args[$key]);
+                $tasks = $this->viewTask($args, $user, $pager);
+                return $this->renderTask($tasks, $originArgs, $pager);
+            }
+        }
+    }
+
+    /**
+     * Parse bot command arguments.
+     *
+     * @param  array         $args   bot command arguments
+     * @param  array         $keys
+     * @access public
+     * @return object
+     */
+    public function parseArguments($args = array(), $keys = array())
+    {
+        $assignedToList = '';
+        $priList        = '';
+        $statusList     = '';
+        $idList         = '';
+        $taskName       = '';
+        $comment        = '';
+        while(!empty($args))
+        {
+            $arg = array_shift($args);
+            if(isset($keys['pri']))
+            {
+                if(in_array(strtolower($arg), $this->lang->condKeywords['pri']))
+                {
+                    $pris = array_shift($args);
+                    $priList = $this->buildCondParamByModifier($pris, $priList, 'p');
+                    continue;
+                }
+                if(preg_match('/p[1-4]/i', $arg) == 1)
+                {
+                    $priList = $this->buildCondParamByModifier($arg, $priList, 'p');
+                    continue;
+                }
+            }
+            if(isset($keys['id']))
+            {
+                if(in_array(strtolower($arg), $this->lang->condKeywords['id']))
+                {
+                    $ids = array_shift($args);
+                    $idList .= $this->buildCondParamByModifier($ids, $idList, '#');
+                    continue;
+                }
+                if(preg_match('/#\d+/', $arg) == 1)
+                {
+                    $idList .= $this->buildCondParamByModifier($arg, $idList, '#');
+                    continue;
+                }
+            }
+            if(isset($keys['status']))
+            {
+                if(in_array(strtolower($arg), $this->lang->condKeywords['status']))
+                {
+                    $statuses = array_shift($args);
+                    $statusList = $this->buildCondParam($statuses, $statusList, $this->taskStatusList);
+                    continue;
+                }
+                if($this->checkCondType($arg, $this->taskStatusList))
+                {
+                    $statusList = $this->buildCondParam($arg, $statusList, $this->taskStatusList);
+                    continue;
+                }
+            }
+            if(isset($keys['assignTo']))
+            {
+                if(in_array(strtolower($arg), $this->lang->condKeywords['assignTo']))
+                {
+                    $usernames = array_shift($args);
+                    $assignedToList = $this->buildCondParam($usernames, $assignedToList, $this->users);
+                    continue;
+                }
+                if($this->checkCondType($arg, $this->users))
+                {
+                    $assignedToList = $this->buildCondParam($arg, $assignedToList, $this->users);
+                    continue;
+                }
+            }
+            if(isset($keys['comment']))
+            {
+                if(in_array(strtolower($arg), $this->lang->condKeywords['comment']))
+                {
+                    $comment = array_shift($args);
+                }
+                else {
+                    $comment = $arg;
+                }
+                continue;
+            }
+            if(isset($keys['taskName']))
+            {
+                if(in_array(strtolower($arg), $this->lang->condKeywords['taskName']))
+                {
+                    $taskName = array_shift($args);
+                }
+                else
+                {
+                    $taskName = $arg;
+                }
+            }
+        }
+
+        $conds = new stdClass();
+        if(isset($keys['pri']))      $conds->priList        = trim($priList, ',');
+        if(isset($keys['assignTo'])) $conds->assignedToList = trim($assignedToList, ',');
+        if(isset($keys['status']))   $conds->statusList     = trim($statusList, ',');
+        if(isset($keys['id']))       $conds->idList         = trim($idList, ',');
+        if(isset($keys['taskName'])) $conds->taskName       = $taskName;
+        if(isset($keys['comment']))  $conds->comment        = $comment;
+        return $conds;
+    }
+
+    /**
+     * Check condition type.
+     *
+     * @param  string        $arg
+     * @param  array         $list
+     * @access public
+     * @return bool
+     */
+    public function checkCondType($arg, $list)
+    {
+        $args = explode(',', $arg);
+        $array_inter = array_intersect($args, $list);
+        if(!empty($array_inter)) return true;
+
+        $list = array_flip($list);
+        $array_inter = array_intersect($args, $list);
+        if(!empty($array_inter)) return true;
+
+        return false;
+    }
+
+    /**
+     * Build condition param.
+     *
+     * @param  string        $arg    bot command arguments
+     * @param  string        $condParam
+     * @param  array         $condArr
+     * @access public
+     * @return string
+     */
+    public function buildCondParam($arg, $condParam, $condArr)
+    {
+        $arr = explode(',', $arg);
+        foreach($arr as $cond)
+        {
+            if(array_key_exists($cond, $condArr))
+            {
+                $condParam .= ',' . $cond;
+            }
+            else
+            {
+                $key = array_search($cond, $condArr);
+                if($key !== false) $condParam .= ',' . $key;
+            }
+        }
+        return $condParam;
+    }
+
+    /**
+     * Remove equal sign from bot command arguments.
+     *
+     * @param  array         $args   bot command arguments
+     * @access public
+     * @return array
+     */
+    public function removeEqualSign($args)
+    {
+        return array_filter(explode('=', implode('=', $args)));
+    }
+
+    /**
+     * Build condition param by modifier.
+     *
+     * @param  array         $args      bot command arguments
+     * @param  string        $condParam
+     * @param  string        $modifier
+     * @access public
+     * @return string
+     */
+    public function buildCondParamByModifier($arg, $condParam, $modifier)
+    {
+        $arg = strtolower($arg);
+        $arg = str_replace($modifier, '', $arg);
+        $condParam .= ',' . $arg;
+        return $condParam;
+    }
+
+    /**
+     * View task command.
+     *
+     * @param  array         $args   bot command arguments
+     * @param  object        $user
+     * @param  object        $pager
+     * @access public
+     * @return object|string
+     */
+    public function viewTask($args = array(), $user = null, $pager = null)
+    {
+        if(empty($args))
+        {
+            $conds = new stdClass();
+            $conds->assignedToList = is_object($user) ? $user->account : false;
+            $conds->statusList     = 'wait,doing,done,pause,cancel';
+            return $this->im->task->getListByConds($conds, 'status_asc', 0, $pager);
+        }
+
+        $keys             = array();
+        $keys['pri']      = true;
+        $keys['id']       = true;
+        $keys['status']   = true;
+        $keys['assignTo'] = true;
+        $keys['taskName'] = true;
+
+        $conds = $this->parseArguments($args, $keys);
+        return $this->im->task->getListByConds($conds, 'status_asc', 0, $pager);
+    }
+
+    /**
+     * Close task command.
+     *
+     * @param  array         $args   bot command arguments
+     * @access public
+     * @return object|string
+     */
+    public function closeTask($args)
+    {
+        $keys            = array();
+        $keys['id']      = true;
+        $keys['comment'] = true;
+
+        $conds   = $this->parseArguments($args, $keys);
+        $tasks   = array_filter(explode(',', $conds->idList));
+        $taskID  = array_pop($tasks);
+        $comment = $conds->comment;
+
+        if(!is_numeric($taskID)) return $this->lang->errors->invalidCommand;
+
+        $task = $this->loadEntry('task', 'get', array('taskID'=> $taskID));
+        if(empty($task)) return $this->lang->errors->emptyResult;
+
+        if($task->status != 'done' && $task->status != 'cancel') return sprintf($this->lang->errors->invalidStatus, $this->taskStatusList[$task->status]);
+
+        $task = $this->loadEntry('taskclose', 'post', array('taskID' => $taskID, 'comment' => $comment));
+        if($task->result == 'fail') return $task->message;
+
+        $link = str_replace('x.php', 'index.php', helper::createLink('task', 'view', "taskID=$taskID", 'html'));
+        $messages = new stdClass();
+        $messages->type = 'url';
+        $messages->url  = common::getSysURL() . $link;
+        return array($this->lang->success, $messages);
+    }
+
+    /**
+     * Finish task.
+     *
+     * @param  array         $args
+     * @param  array         $originArgs
+     * @access public
+     * @return object|string
+     */
+    private function finishTask($args, $originArgs)
+    {
+        $taskID = '';
+        $params = array();
+        while(!empty($args))
+        {
+            $arg = array_shift($args);
+            if(in_array(strtolower($arg), $this->lang->condKeywords['id']))
+            {
+                $taskID = array_shift($args);
+                $taskID = str_replace('#', '', $taskID);
+            }
+            elseif(preg_match('/#\d+/', $arg) == 1)
+            {
+                $taskID = str_replace('#', '', $arg);
+            }
+            else
+            {
+                parse_str(str_replace('amp;', '', end($originArgs)), $params);
+            }
+        }
+
+        if(!is_numeric($taskID)) return $this->lang->errors->invalidCommand;
+
+        $task = $this->loadEntry('task', 'get', array('taskID'=> $taskID));
+        if(!common::hasPriv('task', 'finish')) return $this->lang->errors->unauthorized;
+
+        if(empty($task) || isset($task->error)) return $this->lang->errors->emptyResult;
+        if($task->status != 'wait' && $task->status != 'doing') return sprintf($this->lang->errors->invalidStatus, $this->taskStatusList[$task->status]);
+
+        $reply = new stdClass();
+        $reply->messages  = array();
+        $reply->responses = array();
+
+        $realStarted   = $this->formatDate($task, 'realStarted');
+        $finishedDate  = $this->formatDate($task, 'finishedDate');
+
+        if(empty($params))
+        {
+            $originCommand = rawurlencode($this->lang->finishTask . ' ' . implode(' ', $originArgs));
+
+            $json = (object)array
+            (
+                'title'  => "#{$taskID} {$task->name}",
+                'submitLabel' => $this->im->lang->task->finish,
+                'inputs' =>
+                    array(
+                        (object)array
+                        (
+                            'name'     => $this->im->lang->task->hasConsumed,
+                            'type'     => 'input',
+                            'label'    => $this->im->lang->task->hasConsumed,
+                            'value'    => $task->consumed,
+                            'disabled' => true,
+                            'addon'    => $this->im->lang->task->hour,
+                        ),
+                        (object)array
+                        (
+                            'name'     => $this->im->lang->task->currentConsumed,
+                            'type'     => 'input',
+                            'label'    => $this->im->lang->task->currentConsumed,
+                            'value'    => 0,
+                            'addon'    => $this->im->lang->task->hour,
+                        ),
+                        (object)array
+                        (
+                            'name'  => $this->im->lang->task->realStarted,
+                            'type'  => 'datetime-local',
+                            'label' => $this->im->lang->task->realStarted,
+                            'value' => $realStarted,
+                        ),
+                        (object)array
+                        (
+                            'name'  => $this->im->lang->task->finishedDate,
+                            'type'  => 'datetime-local',
+                            'label' => $this->im->lang->task->finishedDate,
+                            'value' => $finishedDate,
+                        ),
+                    ),
+            );
+            $json = rawurlencode(json_encode($json));
+
+            $reply->messages[] = $this->lang->finish->tip;
+            $reply->messages[] = "[{$this->lang->finish->tipLinkTitle}](xxc://openFormAndSendToServerBySendbox/$json/$originCommand)";
+        }
+        else
+        {
+            $messageID = isset($params['messageId']) ? $params['messageId'] : '';
+            unset($params['messageId']);
+
+            $currentConsumed = 0;
+
+            foreach($params as $key => $value)
+            {
+                if(in_array(strtolower($key), $this->lang->condKeywords['realStarted']))     $realStarted = $value;
+                if(in_array(strtolower($key), $this->lang->condKeywords['finishedDate']))    $finishedDate = $value;
+                if(in_array(strtolower($key), $this->lang->condKeywords['currentConsumed'])) $currentConsumed = $value;
+            };
+
+            if(empty($realStarted) || empty($finishedDate)) return '';
+
+            $params = array
+            (
+                'currentConsumed'   => $currentConsumed,
+                'realStarted'       => $realStarted,
+                'finishedDate'      => $finishedDate,
+            );
+
+            $task = $this->loadEntry('taskfinish', 'post', array_merge(array('taskID' => $taskID, 'assignedTo' => '', 'comment' => ''), $params));
+            if(isset($task->error))
+            {
+                foreach($task->error as $error) $reply->messages[] = is_array($error) ? implode('，', $error): $error;
+                return $reply;
+            }
+
+            $finishedDate = $this->formatDate($task, 'finishedDate', '', 'Y-m-d H:i:s');
+
+            $reply->messages[] = sprintf($this->lang->finish->done, $taskID, $finishedDate, $task->consumed);
+            $reply->messages[] = $this->renderTaskTable(array($task));
+
+            $reply->responses[] = $this->disableMarkdownLinkInMessage($messageID);
+
+            if(!empty($task->fromBug))
+            {
+                $reply->messages[] = sprintf($this->lang->finish->bugTip, $taskID);
+                $link = commonModel::getSysURL() . str_replace('x.php', 'index.php', helper::createLink('bug', 'view', "bugID={$task->fromBug}", 'html'));
+                $href = urlencode($link);
+                $reply->messages[] = "[{$this->lang->finish->bugTipLinkTitle}](xxc:openInApp/zentao-integrated/{$href})";
+            }
+        }
+
+        return $reply;
+    }
+
+    /**
+     * Format date.
+     *
+     * @param  object $task
+     * @param  string $field
+     * @param  string $default
+     * @param  string $format
+     * @return string
+     */
+    private function formatDate($task, $field, $default = '', $format = 'Y-m-d\TH:i')
+    {
+        try
+        {
+            $datetime = new DateTime(empty($task->$field) ? 'now' : $task->$field, new DateTimeZone('UTC'));
+            $datetime->setTimezone(new DateTimeZone(date_default_timezone_get()));
+            return $datetime->format($format);
+        }
+        catch(Exception $e)
+        {
+            return $default;
+        }
+    }
+
+    /**
+     * Render tasks as table html.
+     *
+     * @param  array    $tasks
+     * @param  array    $originArgs
+     * @param  pager    $pager
+     * @return string|array
+     */
+    public function renderTask($tasks, $originArgs, $pager)
+    {
+        $lang = $this->im->lang;
+        if(!$tasks || $pager->recTotal === 0) return $lang->task->noTask;
+
+        $sysURL = common::getSysURL();
+
+        if($pager->recTotal == 1)
+        {
+            $task = current($tasks);
+            $link = str_replace('x.php', 'index.php', helper::createLink('task', 'view', "taskID=$task->id", 'html'));
+
+            $messages = new stdclass();
+            $messages->type = 'url';
+            $messages->url  = $sysURL . $link;
+            return array(sprintf($this->lang->tasksFound, $pager->recTotal), $messages);
+        }
+
+        $messages = array();
+        if($pager->pageID == 1)
+        {
+            $messages[] = sprintf($this->lang->tasksFound, $pager->recTotal);
+        }
+
+        $taskTable = $this->renderTaskTable($tasks);
+
+        $originCommand = $this->lang->viewTask . ' ' . implode(' ', $originArgs);
+        $paging        = "$pager->pageID / $pager->pageTotal";
+        if($pager->pageID != 1)
+        {
+            $previousPageCommand = $originCommand . " {$this->lang->condKeywords['pageID'][1]}=" . ($pager->pageID - 1) . " {$this->lang->condKeywords['recPerPage'][1]}=" . $pager->recPerPage;
+            $previousPageCommand = rawurlencode($previousPageCommand);
+            $paging .= " [{$this->lang->prevPage}](xxc://sendContentToServerBySendbox/{$previousPageCommand})";
+        }
+
+        if($pager->pageID != $pager->pageTotal)
+        {
+            $nextPageCommand = $originCommand . " {$this->lang->condKeywords['pageID'][1]}=" . ($pager->pageID + 1) . " {$this->lang->condKeywords['recPerPage'][1]}=" . $pager->recPerPage;
+            $nextPageCommand = rawurlencode($nextPageCommand);
+            $paging .= " [{$this->lang->nextPage}](xxc://sendContentToServerBySendbox/{$nextPageCommand})";
+        }
+        $paging = "<div class=\"text-right\">$paging</div>";
+
+        $messages[] = $taskTable . $paging;
+
+        return $messages;
+    }
+
+    /**
+     * Render tasks as markdown table.
+     *
+     * @param  array  $tasks
+     * @access public
+     * @return void
+     */
+    public function renderTaskTable($tasks)
+    {
+        $lang    = $this->im->lang;
+        $sysURL  = common::getSysURL();
+        $headMap = array('id'=>'ID', 'pri' => $lang->task->pri, 'name' => $lang->task->name, 'assignedTo' => $lang->task->assignedTo,  'status' => $lang->task->status, 'estimate' => $lang->task->estimateAB, 'consumed' => $lang->task->consumedAB, 'left' => $lang->task->leftAB, 'actions' => $lang->actions);
+        $thead   = '';
+
+        foreach($headMap as $value) $thead .= "<th>{$value}</th>";
+
+        $thead = "<thead class='text-nowrap'><tr>{$thead}</tr></thead>";
+        $tbody = '';
+        foreach($tasks as $task)
+        {
+            $tr   = '';
+            $link = str_replace('x.php', 'index.php', helper::createLink('task', 'view', "taskID=$task->id", 'html'));
+            $href = urlencode($sysURL . $link);
+            $isParent = $task->parent == -1;
+            $isChild  = $task->parent > 0;
+            $isMulti  = !empty($task->mode);
+            foreach($headMap as $key => $value)
+            {
+                switch($key)
+                {
+                    case 'name':
+                        $tr .= "<td>";
+                        if($isParent) $tr .= " <span class='label label-sm circle'>{$lang->task->parentAB}</span>&nbsp;";
+                        if($isChild)  $tr .= " <span class='label label-sm circle'>{$lang->task->childrenAB}</span>&nbsp;";
+                        if($isMulti)  $tr .= " <span class='label label-sm circle'>" . zget($lang->task->modeList, $task->mode) . "</span>&nbsp;";
+                        $tr .= "<a href='xxc:openInApp/zentao-integrated/{$href}'>{$task->$key}</a>";
+                        $tr .= "</td>";
+                        break;
+                    case 'status':
+                        $tr .= "<td class='text-nowrap'>{$this->taskStatusList[$task->$key]}</td>";
+                        break;
+                    case 'assignedTo':
+                        if($task->mode == 'multi')
+                        {
+                            $tr .= "<td class='text-nowrap'>{$lang->task->team}</td>";
+                        }
+                        else if($task->$key == 'closed')
+                        {
+                            $tr .= "<td class='text-nowrap'>Closed</td>";
+                        }
+                        else
+                        {
+                            $tr .= "<td class='text-nowrap'>{$this->users[$task->$key]}</td>";
+                        }
+                    break;
+                    case 'actions':
+                        $startUrl  = 'xxc://sendContentToServerBySendbox/' . "{$this->lang->startTask} #$task->id";
+                        $finishUrl = 'xxc://sendContentToServerBySendbox/' . "{$this->lang->finishTask} #$task->id";
+                        $closeUrl  = 'xxc://sendContentToServerBySendbox/' . "{$this->lang->closeTask} #$task->id";
+
+                        $canStart  = in_array($task->status, array('wait', 'pause'));
+                        $canFinish = in_array($task->status, array('wait', 'pause', 'doing'));
+                        $canClose  = in_array($task->status, array('done', 'cancel'));
+
+                        /* Disable all if task has children. */
+                        if($isParent)
+                        {
+                            $canStart  = false;
+                            $canFinish = false;
+                            $canClose  = false;
+                        }
+
+                        $tr .= '<td><div class="flex gap-xs">';
+                        $tr .= $canStart  ? "<a href='$startUrl'><i class='icon-zt-play'></i></a>"     : "<div><i class='icon-zt-play disabled'></i></div>";
+                        $tr .= $canFinish ? "<a href='$finishUrl'><i class='icon-zt-checked'></i></a>" : "<div><i class='icon-zt-checked disabled'></i></div>";
+                        $tr .= $canClose  ? "<a href='$closeUrl'><i class='icon-zt-off'></i></a>"      : "<div><i class='icon-zt-off disabled'></i></div>";
+                        $tr .= '</div></td>';
+                        break;
+                    case 'estimate':
+                    case 'consumed':
+                    case 'left':
+                        $tr .= "<td class='text-nowrap'>{$task->$key}h</td>";
+                        break;
+                    default:
+                        $tr .= "<td class='text-nowrap'>{$task->$key}</td>";
+                }
+            }
+            $tbody .= "<tr>{$tr}</tr>";
+        }
+        return "<table>{$thead}{$tbody}</table>";
+    }
+
+    /**
+     * Start task command.
+     *
+     * @param  array         $args   bot command arguments
+     * @param  int           $userID
+     * @access public
+     * @return object|string
+     */
+    public function start($args = array(), $userID = 0)
+    {
+        $originArgs = $args;
+        foreach($args as $key => $value)
+        {
+            if(in_array(strtolower($value), $this->lang->condKeywords['task']))
+            {
+                unset($args[$key]);
+            }
+        }
+
+        if(count($args) == 0) return $this->lang->errors->taskIDRequired;
+
+        $taskID = 0;
+        foreach($args as $key => $value)
+        {
+            if(strpos($value, '#') !== false)
+            {
+                $id = str_replace('#', '', $value);
+                if($id && is_numeric($id))
+                {
+                    $taskID = $id;
+                    unset($args[$key]);
+                }
+                else
+                {
+                    if($args[$key + 1] && is_numeric($args[$key + 1]))
+                    {
+                        $taskID = $args[$key + 1];
+                        unset($args[$key]);
+                        unset($args[$key + 1]);
+                    }
+                }
+            }
+        }
+        if(!$taskID) return $this->lang->errors->taskIDRequired;
+
+        $task = $this->loadEntry('task', 'get', array('taskID' => $taskID));
+        if(!$task) return $this->lang->errors->taskNotFound;
+        if($task->status != 'wait') return sprintf($this->lang->errors->invalidStatus, $this->taskStatusList[$task->status]);
+
+        $reply = new stdClass();
+        $reply->messages  = array();
+        $reply->responses = array();
+
+        if(count($args) == 0)
+        {
+            $originCommand = rawurlencode($this->lang->startTask . ' ' . implode(' ', $originArgs));
+
+            $realStarted = $this->formatDate($task, 'realStarted');
+
+            $json = (object)array
+            (
+                'title'  => "#{$taskID} {$task->name}",
+                'submitLabel' => $this->im->lang->task->start,
+                'inputs' => array
+                (
+                    (object)array
+                    (
+                        'name'  => $this->im->lang->task->realStarted,
+                        'type'  => 'datetime-local',
+                        'label' => $this->im->lang->task->realStarted,
+                        'value' => $realStarted,
+                    ),
+                    (object)array
+                    (
+                        'name'     => $this->im->lang->task->consumed,
+                        'type'     => 'number',
+                        'label'    => $this->im->lang->task->consumed,
+                        'value'    => $task->consumed,
+                        'addon'    => $this->im->lang->task->hour,
+                    ),
+                    (object)array
+                    (
+                        'name'     => $this->im->lang->task->left,
+                        'type'     => 'number',
+                        'label'    => $this->im->lang->task->left,
+                        'value'    => $task->left,
+                        'addon'    => $this->im->lang->task->hour,
+                        'helpText' => $this->lang->start->finishWithZeroLeft,
+                    )
+                ),
+            );
+            $json = rawurlencode(json_encode($json));
+
+            $reply->messages[] = sprintf($this->lang->start->tip, $taskID);
+            $reply->messages[] = "[{$this->lang->start->tipLinkTitle}](xxc://openFormAndSendToServerBySendbox/$json/$originCommand)";
+        }
+        else
+        {
+            $hasFormArgs = false;
+
+            $left = $task->left;
+            $consumed = $task->consumed;
+            $realStarted = $task->realStarted;
+
+            foreach($args as $arg)
+            {
+                if(strpos($arg, 'messageId'))
+                {
+                    $hasFormArgs = true;
+                    $formArgs = explode('&', $arg);
+                    $replyArgs = array();
+                    foreach($formArgs as $formArg)
+                    {
+                        $item = explode('=', $formArg);
+                        if(count($item) == 2)
+                        {
+                            $replyArgs[$item[0]] = $item[1];
+                        }
+                    }
+                    foreach($replyArgs as $key => $value)
+                    {
+                        if(in_array(strtolower($key), $this->lang->condKeywords['consumed']))    $consumed    = $value;
+                        if(in_array(strtolower($key), $this->lang->condKeywords['realStarted'])) $realStarted = $value;
+                        if(in_array(strtolower($key), $this->lang->condKeywords['left']))        $left        = $value;
+                    }
+                    if($consumed == 0 && $left == 0) return $this->im->lang->task->noticeTaskStart;
+
+                    $task = $this->loadEntry('taskStart', 'post', array
+                    (
+                        'taskID' => $taskID,
+                        'left' => $left,
+                        'realStarted' => $realStarted,
+                        'consumed' => $consumed,
+                    ));
+                    if($task->result and $task->result == 'fail')
+                    {
+                        $reply->messages[] = $task->message;
+                    }
+                    elseif(isset($task->error))
+                    {
+                        foreach($task->error as $error) $reply->messages[] = is_array($error) ? implode('，', $error): $error;
+                    }
+                    else
+                    {
+                        $reply->messages[] = sprintf($this->lang->effortRecorded, $taskID);
+                        $reply->messages[] = $this->renderTaskTable(array($task));
+
+                        $reply->responses[] = $this->disableMarkdownLinkInMessage($replyArgs['messageId']);
+                    }
+                }
+            }
+
+            if(!$hasFormArgs)
+            {
+                while(!empty($args))
+                {
+                    $arg = array_shift($args);
+                    if(in_array(strtolower($arg), $this->lang->condKeywords['left']))
+                    {
+                        $left = array_shift($args);
+                    }
+                    elseif(in_array(strtolower($arg), $this->lang->condKeywords['consumed']))
+                    {
+                        $consumed = array_shift($args);
+                    }
+                    elseif(in_array(strtolower($arg), $this->lang->condKeywords['realStarted']))
+                    {
+                        $realStarted = array_shift($args);
+                    }
+                }
+
+                $task = $this->loadEntry('taskStart', 'post', array
+                (
+                    'taskID' => $taskID,
+                    'left' => $left,
+                    'realStarted' => $realStarted,
+                    'consumed' => $consumed,
+                ));
+                if($task->result and $task->result == 'fail')
+                {
+                    $reply->messages[] = $task->message;
+                }
+                elseif(isset($task->error))
+                {
+                    foreach($task->error as $error) $reply->messages[] = is_array($error) ? implode('，', $error): $error;
+                }
+                else
+                {
+                    $reply->messages[] = sprintf($this->lang->effortRecorded, $taskID);
+                    $reply->messages[] = $this->renderTaskTable(array($task));
+                }
+            }
+        }
+
+        return $reply;
+    }
+
+    /**
+     * Remove a Markdown link in the message and generate a response.
+     *
+     * @param  $messageID
+     * @access public
+     * @return object
+     */
+    private function disableMarkdownLinkInMessage($messageID)
+    {
+        if(!$messageID) return null;
+        $message = $this->im->message->getList('', array($messageID));
+        $message = current($message);
+        if($message->user != 'xuanbot') return null;
+        $message->content = preg_replace('/\[(.*?)\]\(.*?\)/', '$1', $message->content);
+        $this->im->message->setMessage($message);
+
+        $userID = array_filter(explode('&', $message->cgid), function($item)
+        {
+            return is_numeric($item);
+        });
+
+        $response = new stdclass();
+        $response->result = 'success';
+        $response->method = 'messageUpdate';
+        $response->users  = $userID;
+        $response->data   = array($message);
+
+        return $response;
+    }
+
+    /**
+     * Used to call zentao's API.
+     *
+     * @param  string $entry
+     * @param  string $action
+     * @param  array  $params
+     * @param  string $version
+     * @access public
+     * @return object
+     */
+    public function loadEntry($entry, $action, $params = array(), $version = 'v1')
+    {
+        try
+        {
+            $this->im->loadModel('user');
+
+            $user = $this->im->user->getByID($this->im->app->input['userID'], 'id');
+            /* Authorize him and save to session. */
+            $user->rights = $this->im->user->authorize($user->account);
+            $user->groups = $this->im->user->getGroups($user->account);
+            $user->view   = $this->im->user->grantUserView($user->account, $user->rights['acls'], $user->rights['projects']);
+            $user->admin  = strpos($this->im->app->company->admins, ",{$user->account},") !== false;
+
+            global $app;
+            $app->action = $action;
+            $app->user   = $user;
+
+            include_once($this->im->app->appRoot . "framework/api/entry.class.php");
+            include_once($this->im->app->appRoot . "api/{$version}/entries/" . strtolower($entry) . ".php");
+
+            $entryName = $entry . 'Entry';
+            $entry     = new $entryName();
+
+            if($action == 'post' || $action == 'put')
+            {
+                $entry->requestBody = (object)$params;
+            }
+
+            $content = call_user_func_array(array($entry, $action), $params);
+            return json_decode($content);
+        }
+        catch(EndResponseException $endResponseException)
+        {
+            return $endResponseException->getContent();
+        }
+    }
+}
diff --git a/xuanxuan/extension/xuan/im/ext/lang/de/xuanxuan.php b/xuanxuan/extension/xuan/im/ext/lang/de/xuanxuan.php
index cde654dd0b..c2285839a0 100644
--- a/xuanxuan/extension/xuan/im/ext/lang/de/xuanxuan.php
+++ b/xuanxuan/extension/xuan/im/ext/lang/de/xuanxuan.php
@@ -36,3 +36,89 @@ $lang->im->xxd->aes  = 'Server-side AES';
 $lang->im->xxdAESTip = 'This only affects server-side AES encryption between XXB and XXD.';
 $lang->im->aesOptions['on']  = 'Enabled';
 $lang->im->aesOptions['off'] = 'Disabled';
+
+$lang->im->bot->zentaoBot = new stdclass();
+$lang->im->bot->zentaoBot->name = 'ZenTao';
+$lang->im->bot->zentaoBot->pageSearchRegex = '/(pageID|recPerPage)=(\d+)/';
+
+$lang->im->bot->zentaoBot->commands = new stdclass();
+$lang->im->bot->zentaoBot->commands->view = new stdclass();
+$lang->im->bot->zentaoBot->commands->view->description = 'View task';
+$lang->im->bot->zentaoBot->commands->start = new stdclass();
+$lang->im->bot->zentaoBot->commands->start->description = 'Start task';
+$lang->im->bot->zentaoBot->commands->close = new stdclass();
+$lang->im->bot->zentaoBot->commands->close->description = 'Close task';
+$lang->im->bot->zentaoBot->commands->finish = new stdclass();
+$lang->im->bot->zentaoBot->commands->finish->description = 'Finish task';
+
+$lang->im->bot->zentaoBot->condKeywords = array();
+$lang->im->bot->zentaoBot->condKeywords['task']            = array('task');
+$lang->im->bot->zentaoBot->condKeywords['pri']             = array('pri');
+$lang->im->bot->zentaoBot->condKeywords['status']          = array('status');
+$lang->im->bot->zentaoBot->condKeywords['assignTo']        = array('assignto', 'user');
+$lang->im->bot->zentaoBot->condKeywords['id']              = array('id');
+$lang->im->bot->zentaoBot->condKeywords['taskName']        = array('taskname');
+$lang->im->bot->zentaoBot->condKeywords['comment']         = array('comment');
+$lang->im->bot->zentaoBot->condKeywords['left']            = array('left');
+$lang->im->bot->zentaoBot->condKeywords['consumed']        = array('consumed');
+$lang->im->bot->zentaoBot->condKeywords['realStarted']     = array('realStarted');
+$lang->im->bot->zentaoBot->condKeywords['pageID']          = array('pageID');
+$lang->im->bot->zentaoBot->condKeywords['recPerPage']      = array('recPerPage');
+$lang->im->bot->zentaoBot->condKeywords['finishedDate']    = array('finishedDate');
+$lang->im->bot->zentaoBot->condKeywords['currentConsumed'] = array('currentConsumed');
+
+$lang->im->bot->zentaoBot->success        = 'Command executed successfully.';
+$lang->im->bot->zentaoBot->tasksFound     = 'Found %d tasks.';
+$lang->im->bot->zentaoBot->prevPage       = 'Prev Page';
+$lang->im->bot->zentaoBot->nextPage       = 'Next Page';
+$lang->im->bot->zentaoBot->effortRecorded = 'Effort recorded for task #%d.';
+
+$lang->im->bot->zentaoBot->finishTask = 'finish';
+$lang->im->bot->zentaoBot->closeTask  = 'close';
+$lang->im->bot->zentaoBot->startTask  = 'start';
+$lang->im->bot->zentaoBot->viewTask   = 'view';
+
+$lang->im->bot->zentaoBot->errors = new stdclass();
+$lang->im->bot->zentaoBot->errors->emptyResult     = 'No task found.';
+$lang->im->bot->zentaoBot->errors->invalidCommand  = 'Invalid command.';
+$lang->im->bot->zentaoBot->errors->invalidStatus   = 'Cannot perform such action on task with %s status.';
+$lang->im->bot->zentaoBot->errors->unauthorized    = 'You are not authorized to perform this action.';
+$lang->im->bot->zentaoBot->errors->taskIDRequired  = 'Task ID is required.';
+$lang->im->bot->zentaoBot->errors->taskNotFound    = 'Task not found.';
+
+$lang->im->bot->zentaoBot->finish = new stdclass();
+$lang->im->bot->zentaoBot->finish->tip             = 'Click the link below to finish the task. Time consumed and starting time of this task are required.';
+$lang->im->bot->zentaoBot->finish->tipLinkTitle    = 'Finish Task';
+$lang->im->bot->zentaoBot->finish->done            = 'Task #%d is finished, ended at:%s, time consumed: %.1f hours.';
+$lang->im->bot->zentaoBot->finish->bugTip          = 'Task #%d is associated with a bug, you may mark the bug as resolved by clicking the link below.';
+$lang->im->bot->zentaoBot->finish->bugTipLinkTitle = 'Resolve Bug';
+
+$lang->im->bot->zentaoBot->start = new stdclass();
+$lang->im->bot->zentaoBot->start->tip                = 'Click the link below to start task #%d.';
+$lang->im->bot->zentaoBot->start->tipLinkTitle       = 'Start Task';
+$lang->im->bot->zentaoBot->start->finishWithZeroLeft = 'Hours left is 0 thus the task is finished.';
+
+$lang->im->bot->zentaoBot->help = <<<EOT
+### 1. Task command
+
+Command：`view task condition...`
+Example：`view task dev1 P1 doing` Displays tasks assigned to dev1, with priority P1 and status in progress
+
+| Command | Description |
+| ---- | ---- |
+| view task | Show all open tasks under the current username |
+| view task Name Keyword | Show tasks that match the name keyword |
+| view task Assignor | Show tasks whose assignor is the entered value |
+| view task Priority | Show tasks with priority as entered |
+| view task Status | Show tasks with status as input |
+| view task ID | Show tasks with ID as input |
+
+### 2. Task Edit command
+The Task Edit command supports making status changes to tasks.
+
+| Command | Description |
+| ---- | ---- |
+| start task #ID | Start the task and record its consumption/remaining hours |
+| complete task #ID | Complete the task and record its consumption/remaining hours |
+| close task #ID | Close the task and record its consumption/remaining work hours |
+EOT;
diff --git a/xuanxuan/extension/xuan/im/ext/lang/en/xuanxuan.php b/xuanxuan/extension/xuan/im/ext/lang/en/xuanxuan.php
index cde654dd0b..c2285839a0 100644
--- a/xuanxuan/extension/xuan/im/ext/lang/en/xuanxuan.php
+++ b/xuanxuan/extension/xuan/im/ext/lang/en/xuanxuan.php
@@ -36,3 +36,89 @@ $lang->im->xxd->aes  = 'Server-side AES';
 $lang->im->xxdAESTip = 'This only affects server-side AES encryption between XXB and XXD.';
 $lang->im->aesOptions['on']  = 'Enabled';
 $lang->im->aesOptions['off'] = 'Disabled';
+
+$lang->im->bot->zentaoBot = new stdclass();
+$lang->im->bot->zentaoBot->name = 'ZenTao';
+$lang->im->bot->zentaoBot->pageSearchRegex = '/(pageID|recPerPage)=(\d+)/';
+
+$lang->im->bot->zentaoBot->commands = new stdclass();
+$lang->im->bot->zentaoBot->commands->view = new stdclass();
+$lang->im->bot->zentaoBot->commands->view->description = 'View task';
+$lang->im->bot->zentaoBot->commands->start = new stdclass();
+$lang->im->bot->zentaoBot->commands->start->description = 'Start task';
+$lang->im->bot->zentaoBot->commands->close = new stdclass();
+$lang->im->bot->zentaoBot->commands->close->description = 'Close task';
+$lang->im->bot->zentaoBot->commands->finish = new stdclass();
+$lang->im->bot->zentaoBot->commands->finish->description = 'Finish task';
+
+$lang->im->bot->zentaoBot->condKeywords = array();
+$lang->im->bot->zentaoBot->condKeywords['task']            = array('task');
+$lang->im->bot->zentaoBot->condKeywords['pri']             = array('pri');
+$lang->im->bot->zentaoBot->condKeywords['status']          = array('status');
+$lang->im->bot->zentaoBot->condKeywords['assignTo']        = array('assignto', 'user');
+$lang->im->bot->zentaoBot->condKeywords['id']              = array('id');
+$lang->im->bot->zentaoBot->condKeywords['taskName']        = array('taskname');
+$lang->im->bot->zentaoBot->condKeywords['comment']         = array('comment');
+$lang->im->bot->zentaoBot->condKeywords['left']            = array('left');
+$lang->im->bot->zentaoBot->condKeywords['consumed']        = array('consumed');
+$lang->im->bot->zentaoBot->condKeywords['realStarted']     = array('realStarted');
+$lang->im->bot->zentaoBot->condKeywords['pageID']          = array('pageID');
+$lang->im->bot->zentaoBot->condKeywords['recPerPage']      = array('recPerPage');
+$lang->im->bot->zentaoBot->condKeywords['finishedDate']    = array('finishedDate');
+$lang->im->bot->zentaoBot->condKeywords['currentConsumed'] = array('currentConsumed');
+
+$lang->im->bot->zentaoBot->success        = 'Command executed successfully.';
+$lang->im->bot->zentaoBot->tasksFound     = 'Found %d tasks.';
+$lang->im->bot->zentaoBot->prevPage       = 'Prev Page';
+$lang->im->bot->zentaoBot->nextPage       = 'Next Page';
+$lang->im->bot->zentaoBot->effortRecorded = 'Effort recorded for task #%d.';
+
+$lang->im->bot->zentaoBot->finishTask = 'finish';
+$lang->im->bot->zentaoBot->closeTask  = 'close';
+$lang->im->bot->zentaoBot->startTask  = 'start';
+$lang->im->bot->zentaoBot->viewTask   = 'view';
+
+$lang->im->bot->zentaoBot->errors = new stdclass();
+$lang->im->bot->zentaoBot->errors->emptyResult     = 'No task found.';
+$lang->im->bot->zentaoBot->errors->invalidCommand  = 'Invalid command.';
+$lang->im->bot->zentaoBot->errors->invalidStatus   = 'Cannot perform such action on task with %s status.';
+$lang->im->bot->zentaoBot->errors->unauthorized    = 'You are not authorized to perform this action.';
+$lang->im->bot->zentaoBot->errors->taskIDRequired  = 'Task ID is required.';
+$lang->im->bot->zentaoBot->errors->taskNotFound    = 'Task not found.';
+
+$lang->im->bot->zentaoBot->finish = new stdclass();
+$lang->im->bot->zentaoBot->finish->tip             = 'Click the link below to finish the task. Time consumed and starting time of this task are required.';
+$lang->im->bot->zentaoBot->finish->tipLinkTitle    = 'Finish Task';
+$lang->im->bot->zentaoBot->finish->done            = 'Task #%d is finished, ended at:%s, time consumed: %.1f hours.';
+$lang->im->bot->zentaoBot->finish->bugTip          = 'Task #%d is associated with a bug, you may mark the bug as resolved by clicking the link below.';
+$lang->im->bot->zentaoBot->finish->bugTipLinkTitle = 'Resolve Bug';
+
+$lang->im->bot->zentaoBot->start = new stdclass();
+$lang->im->bot->zentaoBot->start->tip                = 'Click the link below to start task #%d.';
+$lang->im->bot->zentaoBot->start->tipLinkTitle       = 'Start Task';
+$lang->im->bot->zentaoBot->start->finishWithZeroLeft = 'Hours left is 0 thus the task is finished.';
+
+$lang->im->bot->zentaoBot->help = <<<EOT
+### 1. Task command
+
+Command：`view task condition...`
+Example：`view task dev1 P1 doing` Displays tasks assigned to dev1, with priority P1 and status in progress
+
+| Command | Description |
+| ---- | ---- |
+| view task | Show all open tasks under the current username |
+| view task Name Keyword | Show tasks that match the name keyword |
+| view task Assignor | Show tasks whose assignor is the entered value |
+| view task Priority | Show tasks with priority as entered |
+| view task Status | Show tasks with status as input |
+| view task ID | Show tasks with ID as input |
+
+### 2. Task Edit command
+The Task Edit command supports making status changes to tasks.
+
+| Command | Description |
+| ---- | ---- |
+| start task #ID | Start the task and record its consumption/remaining hours |
+| complete task #ID | Complete the task and record its consumption/remaining hours |
+| close task #ID | Close the task and record its consumption/remaining work hours |
+EOT;
diff --git a/xuanxuan/extension/xuan/im/ext/lang/fr/xuanxuan.php b/xuanxuan/extension/xuan/im/ext/lang/fr/xuanxuan.php
index cde654dd0b..c2285839a0 100644
--- a/xuanxuan/extension/xuan/im/ext/lang/fr/xuanxuan.php
+++ b/xuanxuan/extension/xuan/im/ext/lang/fr/xuanxuan.php
@@ -36,3 +36,89 @@ $lang->im->xxd->aes  = 'Server-side AES';
 $lang->im->xxdAESTip = 'This only affects server-side AES encryption between XXB and XXD.';
 $lang->im->aesOptions['on']  = 'Enabled';
 $lang->im->aesOptions['off'] = 'Disabled';
+
+$lang->im->bot->zentaoBot = new stdclass();
+$lang->im->bot->zentaoBot->name = 'ZenTao';
+$lang->im->bot->zentaoBot->pageSearchRegex = '/(pageID|recPerPage)=(\d+)/';
+
+$lang->im->bot->zentaoBot->commands = new stdclass();
+$lang->im->bot->zentaoBot->commands->view = new stdclass();
+$lang->im->bot->zentaoBot->commands->view->description = 'View task';
+$lang->im->bot->zentaoBot->commands->start = new stdclass();
+$lang->im->bot->zentaoBot->commands->start->description = 'Start task';
+$lang->im->bot->zentaoBot->commands->close = new stdclass();
+$lang->im->bot->zentaoBot->commands->close->description = 'Close task';
+$lang->im->bot->zentaoBot->commands->finish = new stdclass();
+$lang->im->bot->zentaoBot->commands->finish->description = 'Finish task';
+
+$lang->im->bot->zentaoBot->condKeywords = array();
+$lang->im->bot->zentaoBot->condKeywords['task']            = array('task');
+$lang->im->bot->zentaoBot->condKeywords['pri']             = array('pri');
+$lang->im->bot->zentaoBot->condKeywords['status']          = array('status');
+$lang->im->bot->zentaoBot->condKeywords['assignTo']        = array('assignto', 'user');
+$lang->im->bot->zentaoBot->condKeywords['id']              = array('id');
+$lang->im->bot->zentaoBot->condKeywords['taskName']        = array('taskname');
+$lang->im->bot->zentaoBot->condKeywords['comment']         = array('comment');
+$lang->im->bot->zentaoBot->condKeywords['left']            = array('left');
+$lang->im->bot->zentaoBot->condKeywords['consumed']        = array('consumed');
+$lang->im->bot->zentaoBot->condKeywords['realStarted']     = array('realStarted');
+$lang->im->bot->zentaoBot->condKeywords['pageID']          = array('pageID');
+$lang->im->bot->zentaoBot->condKeywords['recPerPage']      = array('recPerPage');
+$lang->im->bot->zentaoBot->condKeywords['finishedDate']    = array('finishedDate');
+$lang->im->bot->zentaoBot->condKeywords['currentConsumed'] = array('currentConsumed');
+
+$lang->im->bot->zentaoBot->success        = 'Command executed successfully.';
+$lang->im->bot->zentaoBot->tasksFound     = 'Found %d tasks.';
+$lang->im->bot->zentaoBot->prevPage       = 'Prev Page';
+$lang->im->bot->zentaoBot->nextPage       = 'Next Page';
+$lang->im->bot->zentaoBot->effortRecorded = 'Effort recorded for task #%d.';
+
+$lang->im->bot->zentaoBot->finishTask = 'finish';
+$lang->im->bot->zentaoBot->closeTask  = 'close';
+$lang->im->bot->zentaoBot->startTask  = 'start';
+$lang->im->bot->zentaoBot->viewTask   = 'view';
+
+$lang->im->bot->zentaoBot->errors = new stdclass();
+$lang->im->bot->zentaoBot->errors->emptyResult     = 'No task found.';
+$lang->im->bot->zentaoBot->errors->invalidCommand  = 'Invalid command.';
+$lang->im->bot->zentaoBot->errors->invalidStatus   = 'Cannot perform such action on task with %s status.';
+$lang->im->bot->zentaoBot->errors->unauthorized    = 'You are not authorized to perform this action.';
+$lang->im->bot->zentaoBot->errors->taskIDRequired  = 'Task ID is required.';
+$lang->im->bot->zentaoBot->errors->taskNotFound    = 'Task not found.';
+
+$lang->im->bot->zentaoBot->finish = new stdclass();
+$lang->im->bot->zentaoBot->finish->tip             = 'Click the link below to finish the task. Time consumed and starting time of this task are required.';
+$lang->im->bot->zentaoBot->finish->tipLinkTitle    = 'Finish Task';
+$lang->im->bot->zentaoBot->finish->done            = 'Task #%d is finished, ended at:%s, time consumed: %.1f hours.';
+$lang->im->bot->zentaoBot->finish->bugTip          = 'Task #%d is associated with a bug, you may mark the bug as resolved by clicking the link below.';
+$lang->im->bot->zentaoBot->finish->bugTipLinkTitle = 'Resolve Bug';
+
+$lang->im->bot->zentaoBot->start = new stdclass();
+$lang->im->bot->zentaoBot->start->tip                = 'Click the link below to start task #%d.';
+$lang->im->bot->zentaoBot->start->tipLinkTitle       = 'Start Task';
+$lang->im->bot->zentaoBot->start->finishWithZeroLeft = 'Hours left is 0 thus the task is finished.';
+
+$lang->im->bot->zentaoBot->help = <<<EOT
+### 1. Task command
+
+Command：`view task condition...`
+Example：`view task dev1 P1 doing` Displays tasks assigned to dev1, with priority P1 and status in progress
+
+| Command | Description |
+| ---- | ---- |
+| view task | Show all open tasks under the current username |
+| view task Name Keyword | Show tasks that match the name keyword |
+| view task Assignor | Show tasks whose assignor is the entered value |
+| view task Priority | Show tasks with priority as entered |
+| view task Status | Show tasks with status as input |
+| view task ID | Show tasks with ID as input |
+
+### 2. Task Edit command
+The Task Edit command supports making status changes to tasks.
+
+| Command | Description |
+| ---- | ---- |
+| start task #ID | Start the task and record its consumption/remaining hours |
+| complete task #ID | Complete the task and record its consumption/remaining hours |
+| close task #ID | Close the task and record its consumption/remaining work hours |
+EOT;
diff --git a/xuanxuan/extension/xuan/im/ext/lang/zh-cn/xuanxuan.php b/xuanxuan/extension/xuan/im/ext/lang/zh-cn/xuanxuan.php
index ed956a2059..f7ff79a914 100644
--- a/xuanxuan/extension/xuan/im/ext/lang/zh-cn/xuanxuan.php
+++ b/xuanxuan/extension/xuan/im/ext/lang/zh-cn/xuanxuan.php
@@ -36,3 +36,98 @@ $lang->im->xxd->aes  = '服务端通信 AES';
 $lang->im->xxdAESTip = '该设置仅针对 XXB 和 XXD 之间的通讯加密，不影响客户端通讯加密。';
 $lang->im->aesOptions['on']  = '开启';
 $lang->im->aesOptions['off'] = '关闭';
+
+$lang->im->bot->commonName = '阿道';
+$lang->im->bot->welcome->title = '哈喽~我是你的助手阿道';
+$lang->im->bot->upgradeWelcome->title = '哈喽~我是你的助手阿道';
+
+$lang->im->bot->zentaoBot = new stdclass();
+$lang->im->bot->zentaoBot->name = '禅道';
+$lang->im->bot->zentaoBot->pageSearchRegex = '/(pageID|recPerPage|页码|每页数量|頁碼|每頁數量)=(\d+)/';
+
+$lang->im->bot->zentaoBot->commands = new stdclass();
+$lang->im->bot->zentaoBot->commands->view = new stdclass();
+$lang->im->bot->zentaoBot->commands->view->description = '查看任务';
+$lang->im->bot->zentaoBot->commands->view->alias       = array('查看', '搜索', '查询', '筛选');
+$lang->im->bot->zentaoBot->commands->start = new stdclass();
+$lang->im->bot->zentaoBot->commands->start->description = '开始任务';
+$lang->im->bot->zentaoBot->commands->start->alias       = array('开始', '开始任务');
+$lang->im->bot->zentaoBot->commands->close = new stdclass();
+$lang->im->bot->zentaoBot->commands->close->description = '关闭任务';
+$lang->im->bot->zentaoBot->commands->close->alias       = array('关闭', '关闭任务');
+$lang->im->bot->zentaoBot->commands->finish = new stdclass();
+$lang->im->bot->zentaoBot->commands->finish->description = '完成任务';
+$lang->im->bot->zentaoBot->commands->finish->alias       = array('完成', '完成任务');
+
+$lang->im->bot->zentaoBot->condKeywords = array();
+$lang->im->bot->zentaoBot->condKeywords['task']            = array('任务', 'task');
+$lang->im->bot->zentaoBot->condKeywords['pri']             = array('优先级', 'pri');
+$lang->im->bot->zentaoBot->condKeywords['status']          = array('状态', 'status');
+$lang->im->bot->zentaoBot->condKeywords['assignTo']        = array('指派人', '指派给', 'assignto', 'user');
+$lang->im->bot->zentaoBot->condKeywords['id']              = array('编号', 'id');
+$lang->im->bot->zentaoBot->condKeywords['taskName']        = array('任务名', '任务名称', 'taskname');
+$lang->im->bot->zentaoBot->condKeywords['comment']         = array('备注', 'comment');
+$lang->im->bot->zentaoBot->condKeywords['left']            = array('预计剩余', 'left');
+$lang->im->bot->zentaoBot->condKeywords['consumed']        = array('总计消耗', 'consumed');
+$lang->im->bot->zentaoBot->condKeywords['realStarted']     = array('实际开始', 'realStarted');
+$lang->im->bot->zentaoBot->condKeywords['pageID']          = array('pageID', '页码', '頁碼');
+$lang->im->bot->zentaoBot->condKeywords['recPerPage']      = array('recPerPage', '每页数量', '每頁數量');
+$lang->im->bot->zentaoBot->condKeywords['finishedDate']    = array('实际完成', 'finishedDate');
+$lang->im->bot->zentaoBot->condKeywords['currentConsumed'] = array('本次消耗', 'currentConsumed');
+
+$lang->im->bot->zentaoBot->success        = '指令执行完成';
+$lang->im->bot->zentaoBot->tasksFound     = '为您匹配到 %d 项任务';
+$lang->im->bot->zentaoBot->prevPage       = '上一页';
+$lang->im->bot->zentaoBot->nextPage       = '下一页';
+$lang->im->bot->zentaoBot->effortRecorded = '任务 #%d 已完成工时信息填写';
+
+$lang->im->bot->zentaoBot->finishTask = '完成任务';
+$lang->im->bot->zentaoBot->closeTask  = '关闭任务';
+$lang->im->bot->zentaoBot->startTask  = '开始任务';
+$lang->im->bot->zentaoBot->viewTask   = '查看任务';
+
+$lang->im->bot->zentaoBot->errors = new stdclass();
+$lang->im->bot->zentaoBot->errors->emptyResult     = '未查询到相关匹配信息';
+$lang->im->bot->zentaoBot->errors->invalidCommand  = '无法识别该指令';
+$lang->im->bot->zentaoBot->errors->invalidStatus   = '检测到该任务为%s状态，无法实现指令操作';
+$lang->im->bot->zentaoBot->errors->unauthorized    = '您无权操作此任务';
+$lang->im->bot->zentaoBot->errors->taskIDRequired  = '请输入任务编号';
+$lang->im->bot->zentaoBot->errors->taskNotFound    = '任务不存在';
+
+$lang->im->bot->zentaoBot->finish = new stdclass();
+$lang->im->bot->zentaoBot->finish->tip             = '完成任务指令需要填入工时与记录起始时间，请点击下方入口';
+$lang->im->bot->zentaoBot->finish->tipLinkTitle    = '工时记录';
+$lang->im->bot->zentaoBot->finish->done            = '任务 #%d 已完成，完成时间：%s，消耗：%.1f 小时';
+$lang->im->bot->zentaoBot->finish->bugTip          = '检测到任务 #%d 关联相关 Bug，您可以点击以下链接进行处理';
+$lang->im->bot->zentaoBot->finish->bugTipLinkTitle = '关联 Bug 处理';
+
+$lang->im->bot->zentaoBot->start = new stdclass();
+$lang->im->bot->zentaoBot->start->tip                = '点击链接开始任务 #%d';
+$lang->im->bot->zentaoBot->start->tipLinkTitle       = '开始任务';
+$lang->im->bot->zentaoBot->start->finishWithZeroLeft = '剩余工时为 0，任务将被标记为"已完成"';
+
+$lang->im->bot->zentaoBot->help = <<<EOT
+### 1. 任务查询指令
+
+指令：`查看 任务 条件a 值a1，值a2 条件b 值b1，值b2···条件n 值n1，值n2`
+示例：`查看 任务 阿道 P1 进行中` 显示指派给阿道、优先级为P1且状态为进行中的任务
+
+| 命令 | 描述 |
+| ---- | ---- |
+| 查看 任务 			| 显示当前用户名下所有未关闭的任务 |
+| 查看 任务 名称关键字	| 显示匹配到名称关键字的任务 |
+| 查看 任务 指派人	| 显示指派人为输入值的任务 |
+| 查看 任务 优先级	| 显示优先级为输入值的任务 |
+| 查看 任务 状态 		| 显示状态为输入值的任务 |
+| 查看 任务 ID		| 显示ID为输入值的任务 |
+
+### 2. 任务编辑指令
+
+任务编辑指令支持对任务进行状态变更。
+
+| 命令 | 描述 |
+| ---- | ---- |
+| 开始 任务 #ID 	| 开始任务并记录其消耗/剩余工时 |
+| 完成 任务 #ID	| 完成任务并记录其消耗/剩余工时 |
+| 关闭 任务 #ID	| 关闭任务并记录其消耗/剩余工时 |
+EOT;
diff --git a/xuanxuan/extension/xuan/task/ext/model/xuanxuan.php b/xuanxuan/extension/xuan/task/ext/model/xuanxuan.php
new file mode 100644
index 0000000000..9d2302186e
--- /dev/null
+++ b/xuanxuan/extension/xuan/task/ext/model/xuanxuan.php
@@ -0,0 +1,30 @@
+<?php
+/**
+ * Get task list by conditions.
+ *
+ * @param  object           $conds
+ * @param  string           $orderBy
+ * @param  int              $limit
+ * @param  object           $pager
+ * @access public
+ * @return array
+ */
+public function getListByConds($conds, $orderBy = 'id_desc', $limit = 0, $pager = null)
+{
+    foreach(array('priList' => array(), 'assignedToList' => array(), 'statusList' => array(), 'idList' => array(), 'taskName' => '') as $condKey => $defaultValue)
+    {
+        if(!isset($conds->$condKey)) $conds->$condKey = $defaultValue;
+    }
+
+    return $this->dao->select('*')->from(TABLE_TASK)
+        ->where('deleted')->eq(0)
+        ->beginIF(!empty($conds->priList))->andWhere('pri')->in($conds->priList)->fi()
+        ->beginIF(!empty($conds->assignedToList))->andWhere('assignedTo')->in($conds->assignedToList)->fi()
+        ->beginIF(!empty($conds->statusList))->andWhere('status')->in($conds->statusList)->fi()
+        ->beginIF(!empty($conds->idList))->andWhere('id')->in($conds->idList)->fi()
+        ->beginIF(!empty($conds->taskName))->andWhere('name')->like("%{$conds->taskName}%")
+        ->orderBy($orderBy)
+        ->beginIF($limit > 0)->limit($limit)->fi()
+        ->page($pager)
+        ->fetchAll('id');
+}
diff --git a/xuanxuan/www/data/image/xuanbot.png b/xuanxuan/www/data/image/xuanbot.png
new file mode 100644
index 0000000000..ff8f3fa2d7
Binary files /dev/null and b/xuanxuan/www/data/image/xuanbot.png differ