使用Python请求模拟ajax POST调用

Question

我正在做一个项目,我的解析器窃取获取有关特定站点上每个视频的数据并将其保存到我的数据库.除了完全链接到隐藏的视频外,我已经完成了所有工作.
有一个播放器,它自动在页面加载时启动.我找到了启动播放器的JavaScript代码:

function getVidData(resolution, init) {
    << some code here >>
    jQuery.ajax({type: 'POST', url: '/ajaxdata.php', dataType: 'json', data: 'mod=videodata&vid=48902&res=' + resolution, success: function (response) {
        if (response.error != '' && response.error != undefined) {
        << error handling code here >>
        } else {
            StartPlayer(response.width, response.height, response.filename);
        }
    }  });
}

因此,一个电话之后,如果没有错误发现它开始使用播放器的文件名从响应.这就是我需要的.
我在Live HTTP Headers中重新检查了一个调用:

http://<< SITE_URL >>/ajaxdata.php
POST /ajaxdata.php HTTP/1.1
Host: << SITE_URL >>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0
Accept: application/json, text/javascript, */*; q=0.01
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Referer: << VIDEO_PAGE >>
Content-Length: 31
Cookie: << COOKIE VALUES >>
DNT: 1
Connection: keep-alive
Pragma: no-cache
Cache-Control: no-cache
    mod=videodata&vid=48901&res=640

HTTP/1.1 200 OK
Server: nginx/1.5.9
Date: Tue, 22 Apr 2014 16:30:06 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
Expires: Tue, 22 Apr 2014 16:30:05 GMT
Cache-Control: no-cache
Pragma: no-cache
Content-Encoding: gzip

所以它调用带有特定参数的ajaxdata.php,作为回应我应该找到文件名.
但是这个Python代码对我没有任何回报(既不是内容也不是错误)

import requests

url = "http://LALLALAA/ajaxdata.php"
data_video = {"mod": "videodata", "vid": "48901", 'res': '640'}

s = requests.Session()
s.post(login_url, data=login_data) # Authentication

content = s.post(url, data=data_video)
print content.content

可变内容仅打印"响应[200]"
现在我完全陷入困境,如果有人能指出我所做的错误或我可以尝试的解决方案,我将不胜感激.

谢谢

Answer 1

正如 Martijn Pieters 建议的那样,我逐一尝试了标题,发现这个组合现在正在运行:

import requests

headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0',
    'Accept': 'application/json, text/javascript, */*; q=0.01',
    'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
    'X-Requested-With': 'XMLHttpRequest'
}

s = requests.Session()
s.post(login_url, data=login_data)

content = s.post(url, data=data_video, headers=headers)

我感谢大家,尤其是Martijn Pieters.