修复Role 删除时 秘钥问题等异常引起的Bug

jperm/views.py

 # -*- coding: utf-8 -*-
 
 from django.db.models import Q
+from django.http import HttpResponseBadRequest, HttpResponseNotAllowed
 from paramiko import SSHException
 from jperm.perm_api import *
 
@@ -317,9 +318,13 @@ def perm_role_delete(request):
     delete role page
     """
     if request.method == "POST":
+        try:
             # 获取参数删除的role对象
             role_id = request.POST.get("id")
             role = get_object(PermRole, id=role_id)
+            if not role:
+                logger.warning(u"Delete Role: %s not exist" % role.name)
+                raise ServerError(u"%s 无数据记录" % role.name)
             role_key = role.key_path
             # 删除推送到主机上的role
             recycle_assets = [push.asset for push in role.perm_push.all() if push.success]
@@ -327,20 +332,29 @@ def perm_role_delete(request):
             if recycle_assets:
                 recycle_resource = gen_resource(recycle_assets)
                 task = MyTask(recycle_resource)
+                try:
                     msg = task.del_user(get_object(PermRole, id=role_id).name)
+                except Exception, e:
+                    logger.warning(u"Recycle Role failed: %s" % e)
+                    raise ServerError(u"回收已推送的系统用户失败: %s" % e)
                 logger.info(u"delete role %s - execute delete user: %s" % (role.name, msg))
                 # TODO: 判断返回结果，处理异常
             # 删除存储的秘钥，以及目录
+            try:
                 key_files = os.listdir(role_key)
                 for key_file in key_files:
                     os.remove(os.path.join(role_key, key_file))
                 os.rmdir(role_key)
+            except OSError, e:
+                logger.warning(u"Delete Role: delete key error, %s" % e)
+                raise ServerError(u"删除系统用户key失败: %s" % e)
             logger.info(u"delete role %s - delete role key directory: %s" % (role.name, role_key))
-        # 数据库里删除记录　TODO: 判断返回结果，处理异常
+            # 数据库里删除记录
             role.delete()
             return HttpResponse(u"删除系统用户: %s" % role.name)
-    else:
-        return HttpResponse(u"不支持该操作")
+        except ServerError, e:
+            return HttpResponseBadRequest(u"删除失败, 原因：　%s" % e)
+    return HttpResponseNotAllowed(u"仅支持POST")
 
 
 @require_role('admin')

templates/jperm/perm_role_list.html

@@ -96,7 +96,7 @@ function remove_role(role_id){
            },
            error: function (msg) {
                console.log(msg);
-               alert("失败: " + msg)
+               alert("失败: " + msg.responseText)
            }
         });
     }