17.4.2. Virtuoso OAuth server
Virtuoso implements the OAuth Core 1.0 specification, and exposes the following API endpoints:
Request token
Endpoint:
http://server-cname/OAuth/request_token
Parameters:
-
oauth_consumer_key : The Consumer Key.
-
oauth_signature_method : The signature method the Consumer used to sign the request.
-
oauth_signature . The signature as defined in Signing Requests (Signing Requests).
-
oauth_timestamp : As defined in Nonce and Timestamp (Nonce and Timestamp).
-
oauth_nonce : As defined in Nonce and Timestamp (Nonce and Timestamp).
-
oauth_version : OPTIONAL. If present, value MUST be 1.0 .
Example
Request:
http://example.com/OAuth/request_token?oauth_version=1.0&oauth_nonce =dad4cb071e2169cbcaa051d404ac61a3&oauth_timestamp=1201873644&oauth_cons umer_key=f756023be5ff1f20881cf8fe398069f3976b2304&oauth_signature_metho d=HMAC-SHA1&oauth_signature=z76k5fQ0msFsQzCmhO%2FJZ329ZUE%3D
Note: all long lines in example texts are split, i.e., the GET request is single line.
Response:
oauth_token=b4e22daa117b0bebf60ab6ba6e401edc7addd78c&oauth_token_secret =4de6e3ab17553a0a385ebf6a3b4dd30f
Authorization
Endpoint:
http://server-cname/OAuth/authorize
Parameters:
-
oauth_token : The Request Token obtained in the previous step. The current implementation of the Service Provider declare this parameter as REQUIRED.
-
oauth_callback : OPTIONAL. The Consumer MAY specify a URL the Service Provider will use to redirect the User back to the Consumer when Obtaining User Authorization (Obtaining User Authorization) is complete.
Example
Request:
http://example.com/OAuth/authorize?oauth_token=b4e22daa117b0bebf60ab 6ba6e401edc7addd78c&oauth_callback=http%3A%2F%2Flocalhost%3A8890%2Foaut h%2Fexample%2Fclient.php%3Fkey%3Df756023be5ff1f20881cf8fe398069f3976b23 04%26secret%3Dcc249bfb732039d8ecba9e4f94fdead7%26token%3Db4e22daa117b0b ebf60ab6ba6e401edc7addd78c%26token_secret%3D4de6e3ab17553a0a385ebf6a3b4 dd30f%26endpoint%3Dhttp%253A%252F%252Flocalhost%253A8890%252FOAuth%252F authorize
The User will be asked via web page to accept or decline the token.
Access token
Endpoint:
http://server-cname/OAuth/access_token
Parameters:
-
oauth_consumer_key : The Consumer Key.
-
oauth_token : The Request Token obtained previously.
-
oauth_signature_method : The signature method the Consumer used to sign the request.
-
oauth_signature : The signature as defined in Signing Requests (Signing Requests).
-
oauth_timestamp : As defined in Nonce and Timestamp (Nonce and Timestamp).
-
oauth_nonce : As defined in Nonce and Timestamp (Nonce and Timestamp).
-
oauth_version : OPTIONAL. If present, value MUST be 1.0 .
Example
Request:
http://example.com/OAuth/access_token?oauth_version=1.0&oauth_nonce= 8ad75091a66bdd741472be42149c828e&oauth_timestamp=1201873800&oauth_consu mer_key=f756023be5ff1f20881cf8fe398069f3976b2304&oauth_token=b4e22daa11 7b0bebf60ab6ba6e401edc7addd78c&oauth_signature_method=HMAC-SHA1&oauth_s ignature=tCxy0Lod4%2Bp%2FCBPV7Ph7RrsHXe4%3D
Response:
oauth_token=8c03b3da93480ca4728cc1194d6d03962f3bb5bb&oauth_token_secret =854fd29c00adcedff4fbeaeb96584911
In addtion to the endpoints it define a API for PL applications to check authentication:
Authentication verification
OAUTH.DBA.check_authentication (in params any, in lines any)
Parameters:
-
params : an array of strings representing the HTTP parameters
-
lines : an array of HTTP request headers
Result:
-
on success it returns integer 1,
-
on failure it signal an SQL error.
Sample code:
A sample service (oauth.vsp):
<html> <body> <?vsp OAUTH..check_authentication (params, lines); ?> An OAuth testing page </body> </html>
Sample request:
http://example.com/admin/oauth.vsp?oauth_version=1.0&oauth_nonce=d57 640869b994b2d51bf9800229c4997&oauth_timestamp=1201873935&oauth_consumer _key=f756023be5ff1f20881cf8fe398069f3976b2304&oauth_token=8c03b3da93480 ca4728cc1194d6d03962f3bb5bb&oauth_signature_method=HMAC-SHA1&oauth_sign ature=X3K4lr9bJVz5YLnnyJDkykQZivY%3D
Sample request:
http://example.com/admin/oauth.vsp?oauth_version=1.0&oauth_nonce=d57 640869b994b2d51bf9800229c4997&oauth_timestamp=1201873935&oauth_consumer _key=f756023be5ff1f20881cf8fe398069f3976b2304&oauth_token=8c03b3da93480 ca4728cc1194d6d03962f3bb5bb&oauth_signature_method=HMAC-SHA1&oauth_sign ature=X3K4lr9bJVz5YLnnyJDkykQZivY%3D