I am trying to use twitteR package from RStudio.
However i am getting an error:
'Proxy Authentication required' and some times - 'cannot find the host'.
There are many threads with the same problem.
I have tried everything (--internet2,R by setting "~/Rgui.exe" http_proxy=http:/999.99.99.99:8080/ http_proxy_user=ask). But it didn't work.
Find my below my code (I am running from my office desktop, RStudio), which requires authentication: proxyuserpwd="**domain//username:pwd**".
I am not sure about this line. I tried various combination but none worked.
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
However when I tried with the below code.
library("RCurl")
opts <- list(
proxy = "proxy1.domain.com",
proxyusername = "domain",
proxypassword = "pwd",
proxyport = 8080
)
getURL("http://stackoverflow.com", .opts = opts)
...I am successful.
>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
I tried Multiple Threads solutions from here and their solution none worked. I am not sure where i am making the mistake.(is it the domain that i need to put along with username troubling me) Can someone through some light on this issue.
UPDATE:
When I ran the same code in RGui (setting "~/Rgui.exe" http_proxy=http:/999.99.99.99:8080/http_proxy_user=ask), it has prompted for username and password to download cacert.pem.
But when I try to handshake it throws the same error:
Error: Proxy Authentication Required.
UPDATE:
I am getting the following Error:
Error in function (type, msg, asError = TRUE) :
Received HTTP code 407 from proxy after CONNECT
UPDATE As Thomas suggested - tried
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)
I got the following Error
Error in strsplit(response, "&") : non-character argument
i am updating the link with trace back output
5: strsplit(response, "&")
4: lapply(X = X, FUN = FUN, ...)
3: sapply(strsplit(response, "&")[[1]], strsplit, "=")
2: parseResponse(resp)
1: twitCred$handshake(curl = h)
I really don't know anything about proxy servers, but why don't you try this for your handshake line (explicitly specifying the curl handle):
h <- getCurlHandle(
proxy = "proxy1.domain.com",
proxyusername = "domain",
proxypassword = "pwd",
proxyport = 8080,
cainfo = "cacert.pem")
twitCred$handshake(curl=h)