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[英]Error posting files with RequestBuilder, 403 Forbidden cloudflare
[英]Kotlin Ktor client 403 forbidden cloudflare
因此,我试图请求一方使用受 cloudflare 保护的代理。 问题是我收到 403 forbidden cloduflare 错误,但只有当我使用没有它的代理时才有效。 但是代理不是我用python(请求模块)尝试过的问题,并且在我的浏览器中我没有被阻止。 我的代码
suspend fun scrape() {
val client = HttpClient {
followRedirects = true
install(ContentNegotiation) {
json(Json {
ignoreUnknownKeys = true
})
}
engine {
proxy =
ProxyBuilder.http("http://ProxyIP:proxyPort")
}
defaultRequest {
val credentials = Base64.getEncoder().encodeToString("ProxyUser:ProxyPassword".toByteArray())
header(HttpHeaders.ProxyAuthorization, "Basic $credentials")
}
}
val response = client.get("http://example.com")
val body = response.bodyAsText()
println(body)
println(response.status.hashCode())
修复它
suspend fun scrape() {
val client = HttpClient(Apache) {
install(ContentNegotiation) {
json(Json {
ignoreUnknownKeys = true
})
}
engine {
followRedirects = false
customizeClient {
setProxy(HttpHost("hostname", port))
val credentialsProvider = BasicCredentialsProvider()
credentialsProvider .setCredentials(
AuthScope("hostname", port),
UsernamePasswordCredentials("username", "password")
)
setDefaultCredentialsProvider(credentialsProvider )
}
}
}
val response =
client.get("http://example.com") {
}
val body = response.bodyAsText()
println(body)
println(response.status.hashCode())
}
使用CIO
引擎通过代理服务器发出请求时出现问题。 我创建了一个问题来解决这个问题。 作为解决方法,请使用OkHttp引擎而不是CIO
。
以下是如何使用具有基本身份验证的代理:
import io.ktor.client.*
import io.ktor.client.engine.okhttp.*
import io.ktor.client.request.*
import kotlinx.coroutines.runBlocking
import okhttp3.Authenticator
import okhttp3.Credentials
import okhttp3.OkHttpClient
import java.net.Proxy
fun main(): Unit = runBlocking {
val proxyAuthenticator = Authenticator { _, response ->
response.request.newBuilder()
.header("Proxy-Authorization", Credentials.basic("<username>", "<password>"))
.build()
}
val client = HttpClient(OkHttp) {
engine {
preconfigured = OkHttpClient.Builder()
.proxy(Proxy(Proxy.Type.HTTP, java.net.InetSocketAddress("127.0.0.1", 3128)))
.proxyAuthenticator(proxyAuthenticator)
.build()
}
}
val response = client.get("http://eu.kith.com/products.json")
println(response.status)
}
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