Question

我正按照以下文档尝试向Reddit API发送POST授权请求以获取访问令牌：https://github.com/reddit-archive/reddit/wiki/oauth2

执行请求时，我抛出以下异常：

由以下原因引起：org.apache.http.client.CircularRedirectException：循环重定向到“ https://www.reddit.com/api/v1/access_token”

这是Kotlin代码，它使用Apache Commons HTTP：

@Test
fun testOauthAuthenticationManual() {

    val client = DefaultHttpClient()
    client.redirectStrategy = LaxRedirectStrategy()
    val post = HttpPost("https://www.reddit.com/api/v1/access_token")
    post.addHeader("Authorization", "Basic a3E0RWVocURGeWVoUWc6UVYyYjU0cldDeTJ4aHNZc292ZXNTcVVQc2tJ")
    post.addHeader("Content-Type", "application/x-www-form-urlencoded")
    post.addHeader("User-Agent", "Just testing")
    post.addHeader("Host", "reddit.com")

    val parameters = listOf<NameValuePair>(
            BasicNameValuePair("grant_type", "authorization_code"),
            BasicNameValuePair("redirect_uri", "http://address.co.uk"),
            BasicNameValuePair("code", "2dYqDpjs6lA7FVvUILgDaxKS2ww"))

    post.entity = UrlEncodedFormEntity(parameters, "UTF-8")

    try {
        val response = client.execute(post)
        if (response.statusLine.statusCode == 200) {
            // continue
        } else {
            throw HttpClientException(response.statusLine.reasonPhrase)
        }
    } catch (e: IOException) {
        throw HttpClientException("Could not execute HTTP request: ", e)
    }
}

设置请求时我做错了什么？

Answer 1

万一其他人遇到此错误，请通过以下方法解决此问题：

post.addHeader("User-Agent", "Just testing")
post.addHeader("Host", "reddit.com")

Reddit OAuth2 API循环重定向

1 个答案: