进行OAuth认证开发。 结合新浪微博的OAuth认证来说说具体的功能实现,首先罗列一下关键字组,下面四组关键字跟我们接下来OAuth认证有非常大的关系。
URL_AUTHORIZE
}
AbstractOAuthConsumer是抽象类,可以理解为一个存储认证用户信息及相关参数的基类,它有三个子类:
其中
DefaultOAuthConsumer类,默认的OAuth consumer的实现类. Only supports signing
CommonsHttpOAuthConsumer
JettyOauthConsumer类位于signpost-jetty6-1.2.1.1.jar包,未找到相关源码说明。
构造函数:
AbstractOAuthConsumer(String consumerKey, String consumerSecret)
常用方法:
String getConsumerKey()
String getConsumerSecret()
String getToken()
String getTokenSecret()
public void setTokenWithSecret(String token, String tokenSecret)
public HttpRequest sign(ObjectSigns the given HTTP request by writing an OAuth signature (and other required OAuth parameters) to it. Where these parameters are written depends on the currentrequest) throws OAuthMessageSignerExcept ion , OAuthExpectationFailedException , OAuthCommunicationException
SigningStrategy
.CommonsHttpOAuthProvider
DefaultOAuthProvider使用
HttpURLConnection
type GET requests to receive tokens from a service provider.AbstractOAuthProvider是抽象类,它有两个子类:
构造函数:
AbstractOAuthProvider(String requestTokenEndpointUrl, String accessTokenEndpointUrl, String authorizationWebsiteUrl)
公共方法:
public String retrieveRequestToken(OAuthConsumer注意:必须确保OAuthConsumer中已经设置了有效的consumer key and consumer secret,同时含有未经过授权的 request token and token secret 。consumer, String callbackUrl) throws OAuthMessageSignerExcept ion , OAuthNotAuthorizedException , OAuthExpectationFailedException , OAuthCommunicationException
返回值:用户重定向到授权页的URL地址,其中包含未经授权的Request Token。
The URL to which the user must be sent in order to authorize the consumer. It includes the unauthorized request token 。
public void setOAuth10a(booleanisOAuth10aProvider) 设置为true,表示支持OAuth1.0版本。注意你必须在调用retrieveRequestToken() 和 retrieveAccessToken() 之间重建一个provider object对象时,使用此方法。
public void retrieveAccessToken(OAuthConsumerconsumer, String oauthVerifier) throws OAuthMessageSignerExcept ion , OAuthNotAuthorizedException , OAuthExpectationFailedException , OAuthCommunicationException
说明:Queries the service provider for an access token.
注意: 必须确保OAuthConsumer中已经设置了有效的consumer key and consumer secret,同时含有 未经过授权的 request token and token secret 。
参数:consumer
- theOAuthConsumer
that should be used to sign the request- NOTE: Only applies to service providers implementing OAuth 1.0a. Set to null if the service provider is still using OAuth 1.0. The verification code issued by the service provider after the the user has granted the consumer authorization. If the callback method provided in the previous step was
oauthVerifier OAuth.OUT_OF_BAND
, then you must ask the user for this value. If your app has received a callback, the verfication code was passed as part of that request instead
protected String getResponseParameter(Stringkey) Returns a single query parameter as served by the service provider in a token reply. You must call setResponseParameters(oauth.signpost.http.HttpParameters)
with the set of parameters before using this method.
注意1:在Android中不要使用DefaultOAuth* 类,建议使用CommonHttpOAuth*,因为
since there's a bug in Android's java.net.HttpURLConnection that keeps it from working with some service providers.Instead, use the CommonsHttpOAuth* classes, since they are meant to be used with Apache Commons HTTP (that's what Android uses for HTTP anyway).
第一步,初始化httpOauthConsumer、httpOauthprovider对象。其中
httpOauthConsumer对象封装了请求用的AppKey和AppSecret值;httpOauthprovider对象提供相应操作。
第二步,执行httpOauthprovider.retrieveRequestToken(httpOauthConsumer, callBackUrl);执行这句,httpOauthConsumer将获取token和token_secret参数,并跳转到授权页面,并返回请求验证的URL:
for(String s:httpOauthConsumer.getRequestParameters().keySet()){
Log.d("log", s+":"+httpOauthConsumer.getRequestParameters().getFirst(s));
}
输出的HttpOauthConsumer请求参数:
01-07 01:20:33.016: DEBUG/log(9592): oauth_callback:myapp://AuthorizeActivity
01-07 01:20:33.016: DEBUG/log(9592): oauth_consumer_key:30632531
01-07 01:20:33.016: DEBUG/log(9592): oauth_nonce:-8174893267510893022
01-07 01:20:33.026: DEBUG/log(9592): oauth_signature_method:HMAC-SHA1
01-07 01:20:33.026: DEBUG/log(9592): oauth_timestamp:1325899232
01-07 01:20:33.026: DEBUG/log(9592): oauth_version:1.0
此时输出
for(String s:httpOauthprovider.getResponseParameters().keySet()){
Log.d("log", s+":"+httpOauthprovider.getResponseParameters().getFirst(s));
}
显示为空。
可以这样理解,第一步只是向服务器发出来请求。
authorize_url:http://api.t.sina.com.cn/oauth/authorize?oauth_token=09e02bfbe399986bca8053a47be01082&oauth_callback=myapp://AuthorizeActivity
第三步,如果用户没有登录新浪微博,则会要求用户登录。否则将会出现一个页面,用户可以在此页面上一键同意或者拒绝对此应用授权。用户授权后,web应用页面将会重定向至你指定的oauth_callback,如果使用了callback,那么oauth_callback应该已经接到返回的信息,其中包含oauth_token和oauth_verifier。
此时保存oauth_verifier参数,作为下次请求的参数。
Oauth_CallBack:myapp://AuthorizeActivity?oauth_token=8844ab4499c29d153508f837730b839f&oauth_verifier=226065
第四步,执行retrieveAccessToken(httpOauthConsumer,oauth_verifier)方法,获取授权的Token和Secret。
此时输出:
for(String s:httpOauthprovider.getResponseParameters().keySet()){
Log.d("log", s+":"+httpOauthprovider.getResponseParameters().getFirst(s));
}
返回参数:
01-07 01:30:58.876: DEBUG/log(11367): user_id:1571372175