我必须在Flickr上授权用户,所以我在Flickr上注册了我的应用程序,并为key,secret和callbackUrl注册了硬编码值。 现在,我正在使用scribe库,而是强制用户复制并提交验证程序,我想从回调网址获取参数 frob 。 我在Java中实现all,使用servlet会话来捕获重定向。 这是代码:
public class FlickrAuth extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
OAuthService service = new ServiceBuilder().
provider(FlickrApi.class)
.apiKey(FLICKR_KEY)
.apiSecret(FLICKR_SECRET)
.callback("https://something.com/flickr")
.build();
Token requestToken = service.getRequestToken();
String authorizationUrl = service.getAuthorizationUrl(requestToken);
String url = authorizationUrl + "&perms=read";
//Make a request to the url
response.sendRedirect(url);
}
以这种方式管理servlet回调:
public class FlickrCallback extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String code = request.getParameter("frob");
OAuthService service = new ServiceBuilder().
provider(FlickrApi.class)
.apiKey(FLICKR_KEY)
.apiSecret(FLICKR_SECRET)
.callback(https://something.com/flickr)
.build();
Token requestToken = service.getRequestToken();
Verifier verifier = new Verifier(code);
Token accessToken = service.getAccessToken(requestToken, verifier);
}
当我尝试构建Verifier时,服务器引发此异常:
java.lang.IllegalArgumentException: Must provide a valid string as verifier
似乎重定向没有 frob 参数..但回调是正确的,并在Flick应用程序上正确注册..有人可以帮助我吗?
谢谢!
答案 0 :(得分:4)
我目前使用Slick与Flickr OAuth一起工作,并且在比较你的内容时,我注意到了几个问题:
1)frob
用于旧的身份验证流程,不在OAuth中使用。在OAuth流程中,您需要查找" oauth_verifier"在回调参数中。
//change
String code = request.getParameter("frob");
//to
String code = request.getParameter(OAuthConstants.VERIFIER); //oauth_verifier
2)你应该使用OAuthAuth中的原始requestToken来获取你的accessToken,而不是你得到一个新的requestToken
public class FlickrAuth extends HttpServlet {
...
//after you get the initial requestToken, save it (e.g. session, database,..)
Token requestToken = service.getRequestToken();
request.getSession().setAttribute("some key", requestToken);
public class FlickrCallback extends HttpServlet {
...
//later you will need that original requestToken
Token savedRequestToken = request.getSession().getAttribute("some key");
Verifier verifier = new Verifier(code); //from request param oauth_verifier
Token accessToken = service.getAccessToken(savedRequestToken, verifier);