如何翻译一个python脚本swift (http post请求)?

Question

我有一个从站点获取cookie的工作python脚本。我想把它转换成Swift脚本，但我做错了什么，不能理解在哪里。

#!/usr/bin/env python
import warnings
import json
import os
import requests
auth_login='someName'
auth_password='somePassword'
passport_params = {'from': 'passport', 'retpath': 'https://192.168.0.1/passport?mode=passport', 'passwd': auth_password, 'login': auth_login, 'display': 'page'}
passport_session = requests.session()
passport_error_passwd = u"wrong pass"
passport_error_login = u"no such users"
print('Connecting to passport...')
try:
passport_request = passport_session.post('https://192.168.0.1/passport?mode=auth', data=passport_params, verify=False)
except:
print('Error connecting')
if os.name == 'nt':
os.system("pause")
exit(1)
else:
print('Authentication successful')
passport_cookies = requests.utils.dict_from_cookiejar(passport_session.cookies)
print('cookies=')
print(passport_cookies)

我不确定我的post request是否正确工作，所以我的cookie是空的。

let auth_login = "someName"
let auth_password = "somePassword"
let url = URL(string: "https://192.168.0.1/passport?mode=auth")!
var request = URLRequest(url: url)
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.setValue("application/json", forHTTPHeaderField: "Accept")
request.httpMethod = "POST"
let parameters = [
"from": "passport",
"retpath": "https://192.168.0.1/passport?mode=passport",
"passwd": auth_password,
"login": auth_login,
"display": "page"
]
request.httpBody = try? JSONSerialization.data(withJSONObject: parameters)
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard
//        let data = data,
let response = response as? HTTPURLResponse,
let fields = response.allHeaderFields as? [String: String]
else {
print("error", error ?? URLError(.badServerResponse))
return
}
let cookies = HTTPCookie.cookies(withResponseHeaderFields: fields, for: url)
print("cookies:n(cookies)")

guard (200 ... 299) ~= response.statusCode else {                  
print("statusCode should be 2xx, but is (response.statusCode)")
print("response = (response)")
return
}

}
task.resume()

Answer 1

你的python代码正在发送这些:

passport_params = {'from': 'passport', 'retpath': 'https://192.168.0.1/passport?mode=passport', 'passwd': auth_password, 'login': auth_login, 'display': 'page'}

作为POST数据负载。

当你的Swift代码

let parameters = [
"from": "passport",
"retpath": "https://192.168.0.1/passport?mode=passport",
"passwd": auth_password,
"login": auth_login,
"display": "page"
]
request.httpBody = try? JSONSerialization.data(withJSONObject: parameters)

作为JSON http主体。

所以这些请求是非常不同的，因此你遇到的问题。

看一下如何在Swift中配置请求中的POST数据。