I am trying to authenticate with the withings api. I have got the consumer key and secret correctly and am able to get to the app page, and I can also authenticate with the api.
The problem is that it is not coming back, instead showing a 404 error: page not found. I have cross-checked the callback url many times.
Here's the url.
This is the code I am trying to authenticate with: Documentation, Gem1, Gem2.
I want to get the user back to my application.
@callback_url = 'http://127.0.0.1:3000/auth/withings/callback' @consumer = OAuth::Consumer.new(WITHINGS_KEY, WITHINGS_SECRET, { :site => 'https://oauth.withings.com', :request_token_path => '/account/request_token', :access_token_path => '/account/access_token', :authorize_path => '/account/authorize' }) @request_token = @consumer.get_request_token(:oauth_callback => @callback_url) session[:request_token] = @request_token redirect_to @request_token.authorize_url(:oauth_callback => @callback_url)
Well. I think, you should not use third-party libraries, because
@request_token.authorize_url(:oauth_callback => @callback_url)
return incorrect url.
Try to make your own implementation of OAuth.
1) Use HMAC-SHA1 algorithm for string:
GET&https%3A%2F%2Foauth.withings.com%2Faccount%2Frequest_token&oauth_callback%3Dhttp%3A%2F%2F127.0.0.1%3A3000%2Fauth%2Fwithings%2Fcallback%26oauth_consumer_key%3D{WITHINGS KEY}%26oauth_nonce%3D{RANDOM STRING}%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D{CURRENT TIME}%26oauth_version%3D1.0
This string contains 3 parts: {METHOD} + "&" + {ENCODED REQUEST URL} + "&" + {ENCODED REQUEST QUERY PART}
SECRET KEY for signing: {WITHINGS SECRET}+"&"
In result encode this sign.
2) Send request to the URL:
https://oauth.withings.com/account/request_token?oauth_callback=http%3A%2F%2F127.0.0.1%3A3000%2Fauth%2Fwithings%2Fcallback&oauth_consumer_key={WITHINGS KEY}&oauth_nonce={NONCE FROM STEP 1}&oauth_signature={RESULT OF STEP 1}&oauth_signature_method=HMAC-SHA1&oauth_timestamp={TIMESTAMP FROM STEP 1}&oauth_version=1.0
3) Parse response body. Get OAUTH TOKEN and OAUTH SECRET.
4) Use HMAC-SHA1 algorithm for string:
GET&https%3A%2F%2Foauth.withings.com%2Faccount%2Fauthorize&oauth_callback%3Dhttp%3A%2F%2F127.0.0.1%3A3000%2Fauth%2Fwithings%2Fcallback%26oauth_consumer_key%3D{SECRET KEY}%26oauth_nonce%3D{RANDOM STRING}%26oauth_signature_method%3DHMAC-SHA1%26oauth_token%3D{OAUTH TOKEN}%26oauth_timestamp%3D{CURRENT TIME}%26oauth_version%3D1.0
SECRET KEY for signing: {WITHINGS SECRET}+"&" + {OAUTH SECRET}
In result encode this sign.
5) Redirect user to the URL:
https://oauth.withings.com/account/rauthorize?oauth_callback=http%3A%2F%2F127.0.0.1%3A3000%2Fauth%2Fwithings%2Fcallback&oauth_consumer_key={WITHINGS KEY}&oauth_nonce={NONCE FROM STEP 4}&oauth_signature={RESULT OF STEP 4}&oauth_signature_method=HMAC-SHA1&oauth_token={OAUTH TOKEN}&oauth_timestamp={TIMESTAMP FROM STEP 4}&oauth_version=1.0
There are missing oauth_consumer_key, oauth_signature and other oauth fields in the example link.
