r - httr GET SSL 连接错误

Question

我陷入了一个关于 CURL 和 SSL 的错误中，我不知道发生了什么。

我已经更新了所有可能的包，并成功地从其他 HTTPS 请求中获得了响应。我在 Windows 7 和 10 上试过。

这段代码有什么问题？

u <-"https://www.receita.fazenda.gov.br/Aplicacoes/SSL/ATCTA/CPF/ConsultaPublica.asp"
curl::curl_fetch_memory(u,  new_handle(verbose=T))


* timeout on name lookup is not supported
* Hostname in DNS cache was stale, zapped
*   Trying 161.148.231.100...
* TCP_NODELAY set
* Connected to www.receita.fazenda.gov.br (161.148.231.100) port 443 (#3)
* ALPN, offering h2
* ALPN, offering http/1.1
* Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
* successfully set certificate verify locations:
*   CAfile: C:/Users/athos.damiani/Documents/R/R-3.3.2/etc/curl-ca-bundle.crt
  CApath: none
* Unknown SSL protocol error in connection to www.receita.fazenda.gov.br:443 
* Curl_http_done: called premature == 1
* stopped the pause stream!
* Closing connection 3
Error in curl::curl_fetch_memory(u, new_handle(verbose = T)) : 
  SSL connect error

我的 session 信息()

R version 3.3.2 (2016-10-31)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1

locale:
[1] LC_COLLATE=Portuguese_Brazil.1252  LC_CTYPE=Portuguese_Brazil.1252   
[3] LC_MONETARY=Portuguese_Brazil.1252 LC_NUMERIC=C                      
[5] LC_TIME=Portuguese_Brazil.1252    

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

other attached packages:
[1] curl_2.3   httr_1.2.1

loaded via a namespace (and not attached):
[1] R6_2.2.0    tools_3.3.2

谢谢!

Answer 1

它可能与 r 无关，因为 curl 报告说

curl: (35) Unknown SSL protocol error in connection to www.receita.fazenda.gov.br:443

在该 URL 上。因此，您需要解决 SSL 证书的一般问题。