OS X El Capitan -9806上的RCurl错误 [英] RCurl on OS X El Capitan -9806 Error

问题描述

我正在尝试使用RCurl进行oauth 2身份验证.我的代码是:

I am trying to use RCurl for an oauth 2 authentication. My code is:

library(RCurl)
myOpts <- curlOptions(httpheader =  
      c(Accept="application/json",
    "Content-Type"="application/x-www-form-urlencoded"))

token <- postForm(authURL, 
    .params = list(
        client_id ="aaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
        client_secret = "bbbbbbbbbbbbbbbbbbbbbbbbbbbb",
        username = "[e-mail]",
        password = pswd), 
    .opts = myOpts, 
    style="POST")

该代码在R/Windows上可以正常运行，但在OS X El Capitan上不能正常运行.在OS X上，出现错误

The code works just fine on R/Windows, but not on OS X El Capitan. On OS X, I get the error

Error in function (type, msg, asError = TRUE)  : 
SSLRead() return error -9806

我认为OS X附带的curl/libcurl版本的SSL出现了问题，并且在其他地方对此进行了介绍，但是我还没有找到解决办法.对于它的价值，我在httr软件包中也遇到了类似的问题.如何更新curl并使其在RCurl中很好地播放?

I think it is a problem with SSL in the version of curl/libcurl that ships with OS X, and is documented elsewhere, but I haven't been able to figure out a fix. For what it's worth, I had similar problems with the httr package. How do I update curl and make it play nicely with RCurl?

我的问题与

My question is quite similar to How do I get RCurl to connect to POST SSL on OS X Yosemite?, but El Capitan has made it difficult to copy the curl-config file as suggested in the answer to that post.

推荐答案

我完成了以下工作:

1. 按照通常的gnu configure/make/install顺序从源代码安装libressl.
2. 使用通常的gnu configure/make/install顺序再次从源安装curl.在配置步骤中，我需要使用--with-ca-bundle选项将配置指向有效的证书文件.
3. 从源代码编译RCurl，确保/usr/local/bin在路径列表中早于/usr/bin，以便RCurl的configure脚本从新版本的curl中而不是从os x默认版本中找到curl-config.

我很想知道是否有更好的方法.

I'd love to know if there's a better way.

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