基于twitteR的ROAuth代理认证

Question

我正在尝试使用来自RStudio的RStudio包。

但是，我得到了一个错误：

“'Proxy身份验证是必需的”，有时-“找不到主机”。

有许多线程都有相同的问题。

我什么都试过(--internet2,R by setting "~/Rgui.exe" http_proxy=http:/999.99.99.99:8080/ http_proxy_user=ask)。但没起作用。

找到我下面的代码(我正在从我的办公桌面RStudio运行)，它需要身份验证：proxyuserpwd="**domain//username:pwd**"。

这句话我不太清楚。我试过各种组合，但都没有用。

rm(list=ls())
library(twitteR)
library(ROAuth)
library(RCurl)

options(RCurlOptions = list(
  verbose = TRUE,
  proxy ="http://proxy1.domain.com:8080",
  proxyuserpwd="domain//username:pwd",
  proxyauth="ntlm"))

reqURL <- "http://api.twitter.com/oauth/request_token"
accessURL <- "http://api.twitter.com/oauth/access_token"
authURL <- "http://api.twitter.com/oauth/authorize"
consumerKey <- '.............'
consumerSecret <- '..........'
twitCred <- OAuthFactory$new(consumerKey=consumerKey,
                          consumerSecret=consumerSecret,
                         requestURL=reqURL,
                         accessURL=accessURL,
                         authURL=authURL)

download.file(url="http://curl.haxx.se/ca/cacert.pem",destfile="cacert.pem")
twitCred$handshake(cainfo="cacert.pem")



< Proxy-Authenticate: BASIC realm="Access to this server requires AD Authentication.    Prefix your user ID with domain."
Host: api.twitter.com
Accept: */*
Proxy-Connection: Keep-Alive
Content-Length: 221
Content-Type: application/x-www-form-urlencoded

Error: Proxy Authentication Required
> registerTwitterOAuth(twitCred)
< HTTP/1.1 407 Proxy Authentication Required
* Authentication problem. Ignoring this.
< Proxy-Authenticate: NTLM
< Cache-Control: no-cache
< Pragma: no-cache
< Content-Type: text/html; charset=utf-8
* HTTP/1.1 proxy connection set close!
< Proxy-Connection: close
< Set-Cookie: BCSI-CS-3bf0ea03406bba28=2; Path=/
< Connection: close
< Content-Length: 899
< 
* Closing connection #0
Error in registerTwitterOAuth(twitCred) : 
oauth has not completed its handshake

但是，当我尝试使用下面的代码时。

library("RCurl")
opts <- list(
proxy         = "proxy1.domain.com", 
proxyusername = "domain", 
proxypassword = "pwd",
proxyport     = 8080
)
getURL("http://stackoverflow.com", .opts = opts)

...I是成功的。

>sessionInfo()  
R version 2.15.1 (2012-06-22)
Platform: i386-pc-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252    LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                           LC_TIME=English_United States.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] twitteR_1.1.7  rjson_0.2.13   ROAuth_0.9.3   digest_0.6.3   RCurl_1.95-4.1    bitops_1.0-5  

loaded via a namespace (and not attached):
[1] tools_2.15.1

我从这里尝试了多个线程解决方案，它们的解决方案都不起作用。我不知道我在哪里犯了这个错误。(这是我需要和用户名一起使用的领域，困扰我)，有人能在这个问题上有所了解吗？

更新：

当我在http_proxy=http:/999.99.99.99:8080/http_proxy_user=ask)，中运行相同的代码(设置"~/Rgui.exe“)时，它提示输入用户名和密码来下载cacert.pem。

但当我试图握手时，它会抛出同样的错误：

错误:需要代理身份验证。

更新：

我得到了以下错误：

Error in function (type, msg, asError = TRUE) : Received HTTP code 407 from proxy after CONNECT

按照托马斯的建议更新-尝试过

reqURL <- "https://api.twitter.com/oauth/request_token"
accessURL <- "https://api.twitter.com/oauth/access_token"
authURL <- "http://api.twitter.com/oauth/authorize"
consumerKey <- '-----'
consumerSecret <- '-------'
twitCred <- OAuthFactory$new(consumerKey=consumerKey,
                         consumerSecret=consumerSecret,
                         requestURL=reqURL,
                         accessURL=accessURL,
                         authURL=authURL)

h <- getCurlHandle(
proxy         = "proxy1.domain.com", 
proxyusername = "username",  #but i have to always prefix my domain with username(Domain\username or domain\\username or domain//username)
proxypassword = "password",
proxyport     = 8080,
cainfo = "cacert.pem")
twitCred$handshake(curl=h)

我得到了以下错误

Error in strsplit(response, "&") : non-character argument

我正在用跟踪返回输出更新链接。

5: strsplit(response, "&")

4: lapply(X = X, FUN = FUN, ...)

3: sapply(strsplit(response, "&")[[1]], strsplit, "=")

2: parseResponse(resp)

1: twitCred$handshake(curl = h)

Answer 1

我真的不知道代理服务器的任何情况，但是为什么不为您的握手行(显式地指定curl句柄)尝试这样做：

h <- getCurlHandle(
      proxy         = "proxy1.domain.com", 
      proxyusername = "domain", 
      proxypassword = "pwd",
      proxyport     = 8080,
      cainfo = "cacert.pem")
twitCred$handshake(curl=h)

Answer 2

谢谢托马斯，谢谢你的帮助-我解决了问题。

rm(list=ls())
library(twitteR)
library(ROAuth)
library(RCurl)

reqURL <- "http://api.twitter.com/oauth/request_token"
accessURL <- "http://api.twitter.com/oauth/access_token"
authURL <- "http://api.twitter.com/oauth/authorize"
consumerKey <- '-----'
consumerSecret <- '------'
twitCred <- OAuthFactory$new(consumerKey=consumerKey,
                          consumerSecret=consumerSecret,
                         requestURL=reqURL,
                         accessURL=accessURL,
                         authURL=authURL)

h <- getCurlHandle(
proxy         = "proxy1.domain.com", 
 proxyusername = "username", 
proxypassword = "pwd",
proxyport     = 8080,     cainfo = "cacert.pem")

twitCred$handshake(curl=h)

To enable the connection, please direct your web browser to:

http://api.twitter.com/oauth/authorize?oauth_token=6VJ4mdc71BxVtgbI6YT0eNHqFCGe41f28MjiHl2KSvs When complete, record the PIN given to you and provide it here:

我已将https替换为http。

Answer 3

我还在代理服务器后面工作，并且能够使用下面的代码访问twitter。

consumer_key <- '<put your consumer key here>'
consumer_secret <- '<put your consumer secret here>'
access_token <- "<put your access token here>"
access_secret <- "<put your access token secret here>"
set_config(use_proxy(url='proxy- address',port-number, username, password))
setup_twitter_oauth(consumer_key,consumer_secret, access_token , access_secret)

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