Node/JS 的新手，我正在为现有的 IT 门户创建密码恢复页面，它搜索 AD(ldap) 和用户注册的数据库。根据两者的结果，向用户提供身份验证选项，然后更改密码
当我从客户端发出请求 ($get()) 以查找用户时，后端会间歇性地停止。请参阅下面的控制台日志记录
这是控制台日志记录
Attempting to find : <account name>
Found AD user: <account name>
in acc prep
in sql request
in getUserRegistration //within auth controller
.
.here it prints the results of the sql query // At this point I would expect the promise to be fulfilled.
.
这是花时间做谁知道什么的地方。它最终会完成，但通常需要几分钟。然后打印...
in sql results
停顿似乎是在 then() 中调用return auth.getUserRegistration(globalUser.sql)之后。来自 auth 控制器的日志记录非常快地记录了 sql 查询的结果，该结果正好在它应该被解析之前，从而将结果返回到下面的 then()。所以我不相信身份验证控制器（它独立完美地工作）存在问题，而是在resolve（）中存在问题。也许是因为它在另一个承诺中？
我发现有趣和困惑的是，如果我从另一个选项卡/浏览器浏览到门户，后端工作完成并且页面立即呈现。
请参阅下面的代码
/* Client request */
$.get(urlqry, function(result) {
if (result.match("<div id=\"pop\">")) {
$.modal(result, {
onClose: function () {
$("[id^=simplemodal").remove();
$("#findload").hide();
$("#forgetbtn").show();
$.modal.close();
}
});
} else {
console.log("in else");
$("#divid").html(result)
}
});
/*
this is the route that renders based the work from 2 different controllers
1. check if user exists in Active Directory (ldap)
2. check if user has registered (sql)
*/
router.get('/forgetpwd', function(req, res) {
var usrname = req.query.usr
var domain = req.query.realm
if (usrname && domain) {
console.log("Attempting to find : " + usrname + "@" + domain);
var globalUser = {
username: "",
upn: "",
accounts: [],
sql: {},
registered: false
}
ad.getUser(usrname, domain)
.then(function(result) {
if (result.userPrincipalName) {
console.log("Found AD user: " + result.userPrincipalName);
globalUser.username = result.sAMAccountName
globalUser.upn = result.userPrincipalName
globalUser.accounts = result.extensionAttribute15
} else {
var fail = {
status: "fail",
message: "Unknown Error"
}
var msg = result ? result : fail
throw msg;
}
})
.then(function(result) {
console.log("in acc prep");
globalUser.sql.username = globalUser.username
var upns = globalUser.accounts
if (upns) {
upns = upns.split(",")
for (u in upns) {
var upn = upns[u].split("@")
var domain = upn.slice(-1)[0].toLowerCase()
switch (domain) {
case "domain1":
globalUser.sql.domain1UPN = upns[u]
break;
case "domain2":
globalUser.sql.domain2UPN = upns[u]
break;
case "domain3":
globalUser.sql.ihUPN = upns[u]
break;
default:
globalUser.accounts = ""
break;
}
}
} else {
globalUser.accounts = ""
}
return;
})
.then(function(result) {
console.log("in sql request");
return auth.getUserRegistration(globalUser.sql)
})
.then(function(result) {
console.log("in sql results");
if (result.length > 0) {
globalUser.registered = true
return
} else {
globalUser.registered = false
return
}
})
.then(function(result) {
var accounts = {
username: globalUser.username,
accounts: globalUser.accounts.split(","),
registered: globalUser.registered
}
console.log(accounts);
res.render('./forget-options', accounts);
})
.catch(function(error) {
console.log("in catch");
var failure = {
status: "fail",
message: error
}
console.log(failure);
res.render("./ack", failure);
return
})
} else {
console.log("User field empty and/or Domaim no selected");
}
});
/*
Checks if a a record exist in a DB based on results from ad.getUser
requires edge/edge-sql
*/
auth.getUserRegistration = function(accounts) {
return new Promise(function(resolve, reject) {
var query = "select * from [users] where (username = "
query += "\'" + accounts.username + "\'"
if (accounts.domain2UPN) {
query += " or domain2UPN = \'" + accounts.domain2UPN + "\'"
}
if (accounts.domain1UPN) {
query += " or domain1UPN = \'" + accounts.domain1UPN + "\'"
}
query += ") and q1col is not null and q2col is not null and pin is not null;"
var sqlparams = {
connectionString: "Data Source=name.domain.com;Initial Catalog=dbname;Integrated Security=True",
source: query
};
var getReg = edge.func('sql', sqlparams);
getReg(null, function(error, result) {
if (error) {
console.log("Retrieving user ?? registration");
reject(error);
} else {
console.log("in getUserRegistration");
console.log(result);
resolve(result);
}
});
});
}