I'm trying to authenticate facebook users into a web-app i'm building without the javascript SDK, I'm following This guide. In the first step (where I'm supposed to send the appId along with the redirect_uri),
I have the redirect_uri set to "http%3A%2F%2Feduudle.com%2Fborhom2", it works as expected and sends the code parameter to the backend.
However, in the second step where I'm supposed to send the code along with the client_secret and the redirect_uri, I send the same redirect_uri and it doesn't work. I get the following message "Error validating verification code. Please make sure your redirect_uri is identical to the one you used in the OAuth dialog request"
I have tried the slash at the end, replacing the : with %3A and the / with %2F. I'm 100% sure that the redirect_uri is EXACTLY the same as the one I'm sending in the get request.
The only case where I'd be wrong is if I misunderstood what the redirect_uri is and how to change it from facebook. Try it yourself "http:// eduudle.com / borhom"
I'm 100% sure that the redirect_uri is EXACTLY the same as the one I'm sending in the get request.
Doesn’t look like that.
Clicking login on your sample page redirects me to
https://www.facebook.com/dialog/oauth?client_id=461627793920081&
redirect_uri=http://eduudle.com/borhom2&scope=…
whereas the Graph URL giving the error afterwards is like this,
https://graph.facebook.com/oauth/access_token?code=…&client_secret=…&
redirect_uri=http://eduudle.com/&client_id=461627793920081#_=_
So check your code for the part where that URL is generated and redirected to – I’m pretty sure its your mistake ;-(
Related
I am trying to create a jmeter test script. For login, I make a POST request to the
https://www..com/authenticate
with valid parameters. On the browser, when I fill the form fields and submit, on successful login it redirects me to the
https://www..com/objects/index
page. But this is failing in jmeter. I get a 301: Moved Permanently in the response. How do I make jmeter redirect post login. I tried adding the second url as a different What am I doing wrong here?
Note- I have tried different combinations of Redirect Automatically and Follow redirects but nothing helped.
can't you use another request of type GET to reproduce the scenario ? + adding a Cookie manager so the session continues ? Something like this :
(First request is a POST - where you post your login data)
(Second one is GET - where you get the index page or the one that follows the login)
You could also check this there is an explanation what might be wrong in the code (corrupt redirection chain or something) check it out
The issue was not with redirection. The authentication was not going through as I was sending the header in a wrong sequence. Resolved the issue on correcting the order.
I´m trying to connect via Linkedin Auth2 from a java web application:
Added my own app in linkedin.
Generate the authorization URL: https://www.linkedin.com/uas/oauth2/authorization?response_type=code&client_id=XXX&scope=r_basicprofile%20r_fullprofile%20r_emailaddress&state=DCEEFWF454Us5dffef424&redirect_uri=http://localhost:9090/springmvc/token.htm
Introduce my login/password for linkedin in the new popup.
Get back successful the request on the redirect_uri previus, and take the authorization code "code"
Generate the accessToken URL
Make a POST with: https://www.linkedin.com/uas/oauth2/accessToken?grant_type=authorization_code&code=YYY&redirect_uri=http://localhost:9090/SpringMVC/token.htm&client_id=XXX&client_secret=ZZZ
Get next error in response: {"error_description":"missing required parameters, includes an invalid parameter value, parameter more than once. : Unable to retrieve access token : appId or redirect uri does not match authorization code or authorization code expired","error":"invalid_request"}
I´ve verified url parameters are correct:
- "code" is the token receive on step 4.
"redirect_uri" is the same URL on step 2 and 4. I added this URL on section "OAuth 2.0 redirect URL" on my APP.
"client_id" and "client_secret" are the "Client API" and "Secret API" on my APP.
Time between first and second request is less than 20 seconds.
The value of your redirect_uri parameter must be URL-encoded, so at 6. do:
https://www.linkedin.com/uas/oauth2/accessToken?grant_type=authorization_code&code=YYY&redirect_uri=http%3A%2F%2Flocalhost%3A9090%2FSpringMVC%2Ftoken.htm&client_id=XXX&client_secret=ZZZ
and it need not be sent as a POST but as a GET.
If You Are Sending a Request For Access Token it must be POST Request
Refer the OAuth Documentation
I actually Copied the Whole URL From My Eclipse Console To URL It is Still Valid
In Your Case The Problem is with URL Encoding As HanZ said .
You Have to Encode Your URL For Post Request.
I too got bugged with this issue for long time. Please keep few things in mind which I did and eventually sorted it out.
Hit the api to get authorization code by using get request.
The authorization code has a life span of about 20 seconds, so its difficult to manually copy the code from the url and make a request for token access. You should do it pro-grammatically.
Make a post request for getting access token.
Most Important: Old linkedin applications that I had created was not working and giving the above error. Create a new linkedin application and try. Doing this worked for me.
I assume that all the other parameters like client_id, secret, redirect_uri are correct.
please try and let us know.
Thanks.
I have created a class that generates a URL that authorized my users with Facebook. Here it is:
https://www.facebook.com/dialog/oauth?response_type=code&client_id=...&scope=email%2Cuser_about_me%2Cuser_friends%2Cuser_hometown%2Cuser_location%2Cuser_work_history%2Cuser_education_history%2Cpublish_actions&state=...&redirect_uri=http%3a%2f%2flocalhost%3a53016%2fsocial%2fcallback%3fvariables%3dY2FsbGJhY2tfdXJsOi9MYW5kaW5nO2ZhbGxiYWNrX3VybDovQ29uc3VsdGFudC9TaWduVXA7bWV0aG9kOjE7cHJvdmlkZXI6MQ%3d%3d
This URL works just fine and returns back to my callback function. I'm able to convert the base64 string to my variables that I pass along with my URL. The trouble that I am facing is that Facebook doesn't recognize the URL to give me the access_token. This the return URL that I send to Facebook for the access_token.
https://graph.facebook.com/oauth/access_token?client_id=...&client_secret=...&code=...&redirect_uri=http%3a%2f%2flocalhost%3a53016%2fsocial%2fcallback%3fvariables%3dY2FsbGJhY2tfdXJsOi9MYW5kaW5nO2ZhbGxiYWNrX3VybDovQ29uc3VsdGFudC9TaWduVXA7bWV0aG9kOjE7cHJvdmlkZXI6MQ%3d%3d
(I have cleared out the client_id and client_secret for obvious reasons.)
Can anyone notice what I am doing wrong here?
Perry thank you for your help. I was able to figure out what the problem was on my project. When I was encoding my parameters to Base64 I wasn't using the proper methods to convert it to String. This answer on stackoverflow helped me figure out what I was doing wrong.
C# Method like Base64String, but only alphanumeric (no plus or slash)
The answer in particular is from Mason G. Zhwiti. I was just doing Convert.Base64String instead of HttpServerUtility.UrlTokenEncode(byte[] b). After I did that I was able to get my response. I seemed that my URL had two equal symbols at the end. That was throwing off Facebooks URL validation. Once I did the appropriate method it started working.
I hope this helps anyone else who is struggling with this type of problem.
What is the specific error message - was it unauthorized redirect_uri?
I'm kind of oblivious to the variables - what are they for?
It doesn't seem like you should be doing the callback to a querystring URL, but maybe that's OK. When I first implemented OAuth2, I had the API calls originate from and callback to specific URLs for each provider, such as mysite.com/login-google.php or mysite.com/login-facebook.php, but now I have the callbacks point to the main site URL (mysite.com). Since we have index.php at the main site URL, we can intercept the callback in index.php and route them to the desired provider script (login-google.php or login-facebook.php) which cleans up the callback URLs and makes them a no-brainer for end-users to work with.
Your callback URL:
http://localhost:53016/social/callback?variables=Y2FsbGJhY2tfdXJsOi9MYW5kaW5nO2ZhbGxiYWNrX3VybDovQ29uc3VsdGFudC9TaWduVXA7bWV0aG9kOjE7cHJvdmlkZXI6MQ==
Can you access that callback URL in a browser? Code it up to throw an error or output a debug message so you know the callback URL is working.
I've documented the OAuth2 flow for Facebook quite cleanly in this code: https://github.com/perrybutler/WP-OAuth/blob/master/login-facebook.php
Hope it all helps...
There are many other question related to this, but they didn't help me fix my problem.
I'm using the Facebook server-side login for a website, which I want to test locally. The path that initiates the login action is [http://localhost:8080/fblogin] (this redirects to the Facebook login dialogue, and goes from there).
I can successfully get the code, but when I try to exchange that for an access token, I get the following error:
{"error":{"message":"Missing redirect_uri parameter.","type":"OAuthException","code":191}}
I am providing the redirect_uri, url encoded and it is the same as the one I use to get the first code. Here is the url I'm using to request the access token (with the all-caps query string parameters replaced with their actual values, of course):
https://graph.facebook.com/oauth/access_token?client_id=CLIENT_ID&redirect_uri=http%3A%2F%2Flocalhost%3A8080%2Ffblogin&client_secret=CLIENT_SECRET&code=CODE_FROM_FB
I suspect this might have to do with how my app is set up on Facebook. Here are the values I have set:
Display Name: (an actual display name here)
App Domains: localhost
Contact email: (an actual email here)
Site URL: [http://localhost:8080/fblogin]
What do I need to tweak in the settings to get this to work? Or does this look correct?
By the way, if it makes any difference, I am using the Play! framework, version 2.0.1
After digging around a little more, I found that it was necessary for me to use POST when sending the request from my server to get the access token.
Interesting that using POST worked for you as this didn't for me.
In any case, did you add the query parameters using setQueryParameter()? (see How to make multiple http requests in play 2?)
I'm using FB.login on the JS client and want to verify the user's identity on the server. So, the client gets a signedRequest from facebook and sends it to the server. The server splits on the period, and decodes the second part of the signedRequest into a json object.
What should I be using for "code" when I send my server-side request to
https://graph.facebook.com/oauth/access_token?
client_id=YOUR_APP_ID
&redirect_uri=YOUR_REDIRECT_URI
&client_secret=YOUR_APP_SECRET
&code=CODE_GENERATED_BY_FACEBOOK
My decoded json looks something like:
{"algorithm":"HMAC-SHA256","code":"2.AQCPA_yfx4JHpufjP.3600.1335646800.1-5702286|l11asGeDQTMo3MrMx3SC0PksALj6g","issued_at":1335642445,"user_id":"5232286"}
Is that the code I need? Does it need to be B64 encoded? If this isn't the code, what code should I use?
_
What I've tried:
The request I'm trying to use is:
https://graph.facebook.com/oauth/access_token?client_id=295410083869479&redirect_uri=https://squaredme.appspot.com/facebookredirect&client_secret=44f1TOPSECRETbb8e&code=2.AQCPA_yfx4JHpufjP.3600.1335646800.1-5702286|l11asGeDQTMo3MrMx3SC0PksALj6g
but this returns the error:
{"error":{"message":"Error validating verification code.","type":"OAuthException","code":100}}
I can't tell if this is because I'm using a bad code, or what. Noteably, this is running on my local dev server, and squaredme.appspot.com definitely does NOT resolve to my IP. I don't know if facebook checks that or what - I'm assuming I'd get a better error message. Thanks for any direction!
You are trying to somehow combine the two flows together and that's why things don't work well.
When facebook POSTs into the iframe with your app url and a signed request there are two options, the easy one being that the user is already authenticated and then the signed request will have all the necessary data (including a signed request), then you just load the canvas page and use the JS SDK to get an access token there as well, but in this case there's no need to use the FB.login (since it opens a popup and will automatically close it), you can use the FB.getLoginStatus method which won't annoy the user.
If the user is not authenticated then the sign request will be missing the things you need to use the graph api.
You then redirect the user to the auth dialog, and since you are loaded in an iframe you'll need to return a html response which redirects the parent window using javascript, like:
top.location.href = "AUTH_DIALOG_URL";
When the use is done (accepted or rejected the app) he will be redirected to the "redirect_uri" you added as a parameter to the auth dialog.
If the user accepted your app then you'll be getting the "code" parameter in the query string.
You then take the code, exchange it with an access token as you posted in your question, and then redirect the user back to "apps.facebook.com/YOUR_APP".
When the page then loads the user is already authenticated and you'll be getting a full signed request.
I hope this clarifies things for you, recheck the Server-Side flow it pretty much covers it all.
I also had some trouble with that, then I found the solution here in StackOverflow.
There are two kinds of "code" provided by facebook. One comes inside the signedRequest in the cookie generated by the client-side flow. The Facebook's JS SDK handles this codes and get a access token without telling us anything.
The other type of code comes attached as a query to your redirect URI (http://www.yoururl.com/index.php?code=AAAgyiaus...), when you navigate to OAuth URL (server-side flow). With this code, you go to a Token URL and get your access token.
When you are using the server-side flow, you need to indicate a redirect URI both in the OAuth URL AND in the Token URL, and they have to be exactly the same, so a missing slash or a query string can be a lot of problem.
The codes are different from each other. When you use the both things together, appears to be impossible to get a access token using the code that was inside the cookie's signedRequest.
BUT, it is not. The magic is: the code from signedRequest is associated with NO URI, so as long as the redirect_uri is a mandatory field, all you have to do is to pass it blank when you navigate to the Token URL.
So the final solution is: grab the signedRequest from the cookie, parse it in your server to obtain the code, then read the Token URL:
https://graph.facebook.com/oauth/access_token?
client_id=YOUR_APP_ID
&redirect_uri=&client_secret=YOUR_APP_SECRET
&code=CODE_INSIDE_THE_SIGNED_REQUEST
It looks like a hack, so I don't know how long it's gonna work, but it's working right now.