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DBHomework/enableuser.cpp

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2017-11-20 10:24:47 +08:00
#include "Session.h"
#include "Util.h"
#include "json.hpp"
#include "jsonfail.h"
using namespace std;
using json=nlohmann::json;
#define postval(NAME) string NAME=req.post[#NAME]
int main()
{
Request req;
Session se(req);
Response res;
json j;
auto jsonfail=[&](int errcode,const string& detail="")
{
j["success"]=0;
j["errcode"]=errcode;
j["errmsg"]=string(GetErrMsg(errcode))+" : "+detail;
};
do
{
if(!se.isReady())
{
jsonfail(err_session);
break;
}
if(!se.getUser().empty())
{
/// Logged in. Redirect user to dashboard.
j["success"]=2;
j["next_url"]="/booksys/dashboard.html";
break;
}
if(req.requestMethod!="POST")
{
jsonfail(err_method_not_supported);
break;
}
if(req.post["account"].empty()||
req.post["realname"].empty() ||
req.post["realid"].empty() ||
req.post["realphone"].empty())
{
jsonfail(err_missing_parameter);
break;
}
postval(account);
postval(realname);
postval(realid);
postval(realphone);
/// Connect DB
DBInfo db;
MySQLConn conn;
if(db.readConfig()<0)
{
jsonfail(err_config);
break;
}
if(db.connectProxy(conn)<0)
{
jsonfail(err_connect);
break;
}
/// Check if user exist
int count_val;
if(conn.exec(make_str("select count(username) from bs_user where username='",
account,
"'"),
[&](MySQLResult& res)
{
res.stepRow([&](char** val,unsigned long* len)
{
count_val=ParseInt(val[0]);
});
})<0)
{
jsonfail(err_sql,"Step 1");
break;
}
if(count_val!=1)
{
jsonfail(err_data,"user not exist");
break;
}
/// Check if user need enable
int permission_level;
int account_status;
if(conn.exec(make_str("select permission_level,account_status from bs_user where username='",
account,
"'"),
[&](MySQLResult& res)
{
res.stepRow([&](char** val,unsigned long* len)
{
permission_level=ParseInt(val[0]);
account_status=ParseInt(val[1]);
});
})<0)
{
jsonfail(err_sql,"Step 2");
break;
}
if(permission_level!=3||account_status!=2)
{
/// Does not need enable
j["success"]=2;
j["errmsg"]="Enable is not needed";
break;
}
/// Do Update
if(conn.exec(make_str("insert into bs_reader values ('",
account,
"','",
realname,
"','",
realid,
"','",
realphone,
"',1,0,", /// LV, EXP
"0,0,0,", /// Borrow Limit, Borrow Used, Borrow Time Limit (This should be auto generated by Trigger)
"0,0)" /// Bonus, Balance
),nullptr)<0)
{
jsonfail(err_sql,"Step 3");
break;
}
if(conn.getAffectedRows()<1) /// FIXME: I'm not sure if trigger will affect more than 1 rows.
{
jsonfail(err_sql_logic,"Affected rows less than 1");
break;
}
j["successs"]=1;
}while(0);
res.content.append(j.dump());
res.show();
return 0;
}