redirect from ajax async call (get or post type)

hosseo · 2015-03-24T15:46:26+00:00

Hello! On Sun, Mar 22, 2015 at 9:24 AM, Abdul Hakeem wrote: > Can Openresty be embedded into a C application, & does it support SO_REUSEPORT > opt...

redirect from ajax async call (get or post type)

hosseo

Hi,

I have an issue about redirection.

Browser want to some page without session, I redirect it to login page. It's ok.

But I cannot make some ajax async request without session to redirect to the login page.

Here is my code using Yichun Zhang's sample code about session.

access_by_lua '

local base32 = ngx.var.cookie_session

if base32 and base32 ~= "" then

local binary = ndk.set_var.set_decode_base32(base32)

local nickname = ndk.set_var.set_decrypt_session(binary)

if nickname and nickname ~= "" then

local uri = ngx.var.request_uri

local ret = ngx.location.capture("/some_location"..uri)

ngx.say(ret.body)

else

return ngx.redirect("../login/login.html", 301) --- Here is not working as I intend.

end

else

return ngx.redirect("../login/login.html", 301) -- Here is not working as I intend.

end

Browser only can receive the 'login.html' page text in the 'responseText' parameter at the callback function(defined by ajax call time)

And the status code 200 OK.

Is it possible to redirect internally or externally?

Thank you.

manchev

Well, why don't you return 401 or 403 and do the redirect on the client side instead?

Best,

Vladislav

On Tue, Mar 24, 2015 at 9:46 AM, Hoseong Seo <ho...@gmail.com> wrote:

Hi,

I have an issue about redirection.

Browser want to some page without session, I redirect it to login page. It's ok.

But I cannot make some ajax async request without session to redirect to the login page.

Here is my code using Yichun Zhang's sample code about session.

access_by_lua '

local base32 = ngx.var.cookie_session
if base32 and base32 ~= "" then
local binary = ndk.set_var.set_decode_base32(base32)
local nickname = ndk.set_var.set_decrypt_session(binary)
if nickname and nickname ~= "" then
local uri = ngx.var.request_uri
local ret = ngx.location.capture("/some_location"..uri)
ngx.say(ret.body)
else
return ngx.redirect("../login/login.html", 301) --- Here is not working as I intend.
end
else
return ngx.redirect("../login/login.html", 301) -- Here is not working as I intend.
end
';

Browser only can receive the 'login.html' page text in the 'responseText' parameter at the callback function(defined by ajax call time)
And the status code 200 OK.

Is it possible to redirect internally or externally?

Thank you.

.

hosseo

Thank you for your answer.

I'm really newbie about nginx.

I thought that redirection on the client side will be my last choice.

If that is the best way. I want to do that on client side.

But I also want to know how to return 401 or 403. When I use "ngx.exit(301)", it didn't work.

Could you let me know how to do?

Thank you.

2015년 3월 24일 화요일 오후 6시 12분 52초 UTC+9, Vladislav Manchev 님의 말:

Well, why don't you return 401 or 403 and do the redirect on the client side instead?

Best,
Vladislav

On Tue, Mar 24, 2015 at 9:46 AM, Hoseong Seo <hos...@gmail.com> wrote:

Hi,

I have an issue about redirection.

Browser want to some page without session, I redirect it to login page. It's ok.

But I cannot make some ajax async request without session to redirect to the login page.

Here is my code using Yichun Zhang's sample code about session.

access_by_lua '

local base32 = ngx.var.cookie_session
if base32 and base32 ~= "" then
local binary = ndk.set_var.set_decode_base32(base32)
local nickname = ndk.set_var.set_decrypt_session(binary)
if nickname and nickname ~= "" then
local uri = ngx.var.request_uri
local ret = ngx.location.capture("/some_location"..uri)
ngx.say(ret.body)
else
return ngx.redirect("../login/login.html", 301) --- Here is not working as I intend.
end
else
return ngx.redirect("../login/login.html", 301) -- Here is not working as I intend.
end
';

Browser only can receive the 'login.html' page text in the 'responseText' parameter at the callback function(defined by ajax call time)
And the status code 200 OK.

Is it possible to redirect internally or externally?

Thank you.

.

manchev

You can use return ngx.exit(403) in your Lua code and then just check the status code returned in the response.

If it matches 403 you can easily redirect from your JS code handling the AJAX response with something like window.location = "/login";

Best,

Vladislav

On Tue, Mar 24, 2015 at 11:45 AM, Hoseong Seo <ho...@gmail.com> wrote:

Thank you for your answer.

I'm really newbie about nginx.

I thought that redirection on the client side will be my last choice.

If that is the best way. I want to do that on client side.

But I also want to know how to return 401 or 403. When I use "ngx.exit(301)", it didn't work.

Could you let me know how to do?

Thank you.

2015년 3월 24일 화요일 오후 6시 12분 52초 UTC+9, Vladislav Manchev 님의 말:
Well, why don't you return 401 or 403 and do the redirect on the client side instead?

Best,
Vladislav

On Tue, Mar 24, 2015 at 9:46 AM, Hoseong Seo <hos...@gmail.com> wrote:

Hi,

I have an issue about redirection.

Browser want to some page without session, I redirect it to login page. It's ok.

But I cannot make some ajax async request without session to redirect to the login page.

Here is my code using Yichun Zhang's sample code about session.

access_by_lua '

local base32 = ngx.var.cookie_session
if base32 and base32 ~= "" then
local binary = ndk.set_var.set_decode_base32(base32)
local nickname = ndk.set_var.set_decrypt_session(binary)
if nickname and nickname ~= "" then
local uri = ngx.var.request_uri
local ret = ngx.location.capture("/some_location"..uri)
ngx.say(ret.body)
else
return ngx.redirect("../login/login.html", 301) --- Here is not working as I intend.
end
else
return ngx.redirect("../login/login.html", 301) -- Here is not working as I intend.
end
';

Browser only can receive the 'login.html' page text in the 'responseText' parameter at the callback function(defined by ajax call time)
And the status code 200 OK.

Is it possible to redirect internally or externally?

Thank you.

.

hosseo

Thank you very much Vladislav !!!

I did as you have explained.

And now it's simple and perfect.

I'm really appreciate to your quick answer.

2015년 3월 24일 화요일 오후 7시 0분 42초 UTC+9, Vladislav Manchev 님의 말:
You can use return ngx.exit(403) in your Lua code and then just check the status code returned in the response.

If it matches 403 you can easily redirect from your JS code handling the AJAX response with something like window.location = "/login";

Best,
Vladislav

On Tue, Mar 24, 2015 at 11:45 AM, Hoseong Seo <hos...@gmail.com> wrote:
Thank you for your answer.

I'm really newbie about nginx.

I thought that redirection on the client side will be my last choice.

If that is the best way. I want to do that on client side.

But I also want to know how to return 401 or 403. When I use "ngx.exit(301)", it didn't work.

Could you let me know how to do?

Thank you.

2015년 3월 24일 화요일 오후 6시 12분 52초 UTC+9, Vladislav Manchev 님의 말:
Well, why don't you return 401 or 403 and do the redirect on the client side instead?

Best,
Vladislav

On Tue, Mar 24, 2015 at 9:46 AM, Hoseong Seo <hos...@gmail.com> wrote:

Hi,

I have an issue about redirection.

Browser want to some page without session, I redirect it to login page. It's ok.

But I cannot make some ajax async request without session to redirect to the login page.

Here is my code using Yichun Zhang's sample code about session.

access_by_lua '

local base32 = ngx.var.cookie_session
if base32 and base32 ~= "" then
local binary = ndk.set_var.set_decode_base32(base32)
local nickname = ndk.set_var.set_decrypt_session(binary)
if nickname and nickname ~= "" then
local uri = ngx.var.request_uri
local ret = ngx.location.capture("/some_location"..uri)
ngx.say(ret.body)
else
return ngx.redirect("../login/login.html", 301) --- Here is not working as I intend.
end
else
return ngx.redirect("../login/login.html", 301) -- Here is not working as I intend.
end
';

Browser only can receive the 'login.html' page text in the 'responseText' parameter at the callback function(defined by ajax call time)
And the status code 200 OK.

Is it possible to redirect internally or externally?

Thank you.

.