public override IEnumerable <IFreeDocument> Execute(IEnumerable <IFreeDocument> documents)
{
foreach (var document in documents)
{
string item = document[Column].ToString();
var mypath = document.Query(Path);
var path = document.Query(mypath);
DirectoryInfo directoryInfo = new DirectoryInfo(path);
var folder = directoryInfo.Parent;
if (folder == null)
{
continue;
}
if (!folder.Exists)
{
folder.Create();
}
var url = document[Column].ToString();
if (string.IsNullOrEmpty(url))
{
continue;
}
File.WriteAllText(mypath, item, AttributeHelper.GetEncoding(EncodingType));
yield return(document);
}
}
public override IEnumerable <IFreeDocument> Execute(IEnumerable <IFreeDocument> documents)
{
foreach (var document in documents)
{
string item = document[Column].ToString();
var mypath = document.Query(Path);
File.WriteAllText(mypath, item, AttributeHelper.GetEncoding(EncodingType));
yield return(document);
}
}
public override object TransformData(IFreeDocument datas)
{
string item = datas[Column].ToString();
var res = buffHelper.Get(item);
if (res != null)
{
return(res);
}
else
{
var content = File.ReadAllText(item, AttributeHelper.GetEncoding(EncodingType));
buffHelper.Set(item, content);
return(content);
}
}
/// <summary>
/// 为请求准备参数
/// </summary>
/// <param name="item">参数列表</param>
/// <param name="_Encoding">读取数据时的编码方式</param>
private HttpWebRequest SetRequest(HttpItem item, string desturl = null, string post = null)
{
var url = desturl ?? item.URL;
if (url == null)
{
return(null);
}
if (url.Contains("http") == false)
{
url = "http://" + url;
}
// 验证证书
if (url.Contains("https"))
{
ServicePointManager.ServerCertificateValidationCallback =
(sender, certificate, chain, sslPolicyErrors) => true;
}
//初始化对像，并设置请求的URL地址
var request = (HttpWebRequest)WebRequest.Create(GetUrl(url));
var docu = item.GetHeaderParameter();
// 设置代理
//SetProxy(item);
//请求方式Get或者Post
request.Method = item.Method.ToString();
request.Timeout = item.Timeout;
request.ReadWriteTimeout = item.ReadWriteTimeout;
//Accept
request.Headers = new WebHeaderCollection();
if (docu["Headers"].ToString() != "")
{
var str = docu["Headers"].ToString().Split('\n');
foreach (var s in str)
{
var ms = s.Split(':');
if (ms.Length != 2)
{
continue;
}
var key = ms[0].Trim();
var value = ms[1].Trim();
if (SetHeaderValue(request.Headers, key, value) == false)
{
request.Headers.Add(key, value);
}
}
}
request.Accept = docu["Accept"].ToString();
//ContentType返回类型
request.ContentType = docu["Content_Type"].ToString();
//UserAgent客户端的访问类型，包括浏览器版本和操作系统信息
request.UserAgent = docu["User-Agent"].ToString();
var host = docu["Host"].ToString();
//if (string.IsNullOrEmpty(host) == false)
// request.Host = host;
encoding = AttributeHelper.GetEncoding(item.Encoding);
//设置Cookie
var cookie = docu["Cookie"].ToString();
if (!string.IsNullOrEmpty(cookie))
{
request.Headers[HttpRequestHeader.Cookie] = cookie;
}
//来源地址
request.Referer = docu["Referer"].ToString();
//是否执行跳转功能
request.AllowAutoRedirect = item.Allowautoredirect;
//设置Post数据
string postdata = null;
if (post == null)
{
postdata = item.Postdata;
}
else
{
postdata = post;
}
//验证在得到结果时是否有传入数据
if (!string.IsNullOrEmpty(postdata) && request.Method.Trim().ToLower().Contains("post"))
{
var buffer = Encoding.Default.GetBytes(postdata);
request.ContentLength = buffer.Length;
request.GetRequestStream().Write(buffer, 0, buffer.Length);
}
////设置最大连接
//if (item.Connectionlimit > 0)
//{
// request.ServicePoint.ConnectionLimit = item.Connectionlimit;
//}
return(request);
}
