复制httr的cookie [英] Copying cookie for httr
问题描述
我正在尝试访问根据访问者类型设置cookie的网站：
I'm trying to access a site that sets a cookie on the basis of what type of visitor:
library(httr)
url <- "https://www.blackrock.com/ca/individual/en/products/product-list#categoryId=1&lvl2=overview"
基本上我尝试过的所有内容都会返回此...：
Essentially everything I've tried returns the this...:
GET（url）
Response [https://www.blackrock.com/ca/individual/en/site-entry?targetUrl=%2Fca%2Findividual%2Fen%2Fproducts%2Fproduct-list%3FsiteEntryPassthrough%3Dtrue]
Status: 200
Content-type: text/html;charset=UTF-8
Size: 270 kB
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml" prefix="og: http://ogp.me/ns#" lang="en" xml:lang="en"><head><meta content="text/html;charset=UTF-8" http-equiv="Content-type...
<meta name="description" content="" />
<meta name="robots" content="noindex,noarchive,nocache" />
<meta property="og:title" content="Site Entry" />
<meta property="og:type" content="website" />
<meta property="og:image" content="/amer-retail-assets/include/common/images/blackrock_logo.png" />
<meta property="og:site_name" content="BlackRock" />
<meta property="og:locale" content="en_CA" />
<meta property="og:url" content="https://www.blackrock.com/ca/individual/en/site-entry?locale=en_CA" />
<link rel="canonical" href="https://www.blackrock.com/ca/individual/en/site-entry?locale=en_CA" />
因此，我尝试在chrome中手动传递网关或站点进入页面后尝试复制cookie：
So, instead I tried copying the cookie after manually passing the gateway or site-entry page in chrome:
cookie = c(`JSESSION_amer-retail01` = "AC91C17F269D8F6A136E576531FA6E05",
`UnicaID` = "10.39.18.249-1408392737241856",
`UnicaNIODID` = "NQHKNKQYKDm-YxUEYgX",
`_ga` = "GA1.2.127078965.1408392737",
`blkUserType-ca-one` = "institutional",
`s_pers` = "%20s_fid%3D14569E53C0F4EE51-3982590542B2DDA4%7C1471566685393%3B%20gpv%3Dca-one%257Cproducts%257Cproduct%2520list%7C1408410085400%3B%20s_nr%3D1408408285405-Repeat%7C1439944285405%3B%20s_pers_eVar15%3Dprospect%7C1411000285408%3B%20s_pers_prop19%3Danonymous%7C1411000285411%3B",
`s_sess` = "%20s_cc%3Dtrue%3B%20s_sq%3D%3B",
`s_vi` = "[CS]v1|29F92F108507B6C6-6000010A8000E2ED[CE]",
`ts-ca-one-locale` = "en_CA")
GET（URL，set_cookies（.cookies = cookie），user_agent（ Mozilla / 5.0））
此返回相同的结果。
但是，当我查看 httr 的示例时，我认为获得cookie设置的结果是不正确的。
However, when I look at the examples for httr I think the results I'm getting for setting the cookie are incorrect.
例如：
>例如（set_cookies）
st_cks> set_cookies(a = 1, b = 2)
Config:
List of 1
$ cookie:"a1=;b2="
st_cks> set_cookies(.cookies = c(a = "1", b = "2"))
Config:
List of 1
$ cookie:"a1=;b2="
st_cks> GET("http://httpbin.org/cookies")
Response [http://httpbin.org/cookies]
Status: 200
Content-type: application/json
Size: 19 B
{
"cookies": {}
st_cks> GET("http://httpbin.org/cookies", set_cookies(a = 1, b = 2))
Response [http://httpbin.org/cookies]
Status: 200
Content-type: application/json
Size: 50 B
{
"cookies": {
"a1": "",
"b2": ""
}
我希望httpbin.org返回a = 1和b = 1而不是a1 =和b2 =。我做错什么了吗？
I would have expected httpbin.org to return a = 1 and b = 1 instead of a1 = and b2 =. Am I doing something wrong?
推荐答案
您没有做错任何事情（至少是IMO）。看一下 set_cookies ，那里有一些代码：
You're not doing anything wrong (at least IMO). Taking a look at set_cookies, there's a bit of code there:
cookie <- paste0(names(cookies), cookies_str, sep = "=", collapse = ";")
不能按预期方式工作（即正在将 a = 1 变成 a1 = a = 1 ）。
which is not working as intended (i.e. it's turning a = "1" into a1= instead of a=1).
您可以使用以下命令：
sc2 <- function (..., .cookies = character(0)) {
cookies <- c(..., .cookies)
stopifnot(is.character(cookies))
cookies_str <- vapply(cookies, RCurl::curlEscape, FUN.VALUE = character(1))
cookie <- paste(names(cookies), cookies_str, sep = "=",
collapse = ";")
config(cookie = cookie)
}
GET("http://httpbin.org/cookies", sc2(a = 1, b = 2))
## Response [http://httpbin.org/cookies]
## Status: 200
## Content-type: application/json
## Size: 50 B
## {
## "cookies": {
## "a": "1",
## "b": "2"
## }
暂时使用 paste 代替 paste0 直到确定为止（我将在 httr github存储库上提交问题）。
that uses paste instead of paste0 temporarily until that's fixed (I'll file an issue on the httr github repo).
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