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FLocal/Importer/ShallerConnector.cs

84 lines
3.0 KiB

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Net;
using System.Configuration;
using System.IO;
namespace FLocal.Importer {
class ShallerConnector {
public static readonly Encoding encoding = Encoding.GetEncoding(1251);
private const int BUFFER = 1024;
public static FileInfo getPageInfo(string requestUrl, Dictionary<string, string> postData, CookieContainer cookies) {
string baseUrl = ConfigurationManager.AppSettings["Importer_BaseUrl"];
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(baseUrl + requestUrl);
request.KeepAlive = true;
request.CookieContainer = cookies;
request.ReadWriteTimeout = 3*1000;
request.Timeout = 3*1000;
request.Accept = "*";
if(postData.Count < 1) {
request.Method = "GET";
} else {
StringBuilder postBuilder = new StringBuilder();
foreach(KeyValuePair<string, string> kvp in postData) {
postBuilder.Append(HttpUtility.UrlEncode(kvp.Key, encoding));
postBuilder.Append('=');
postBuilder.Append(HttpUtility.UrlEncode(kvp.Value, encoding));
}
byte[] postBytes = Encoding.ASCII.GetBytes(postBuilder.ToString());
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = postBytes.Length;
Stream stream = request.GetRequestStream();
stream.Write(postBytes, 0, postBytes.Length);
stream.Close();
}
request.UserAgent = "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; FDM; .NET4.0C; .NET4.0E)";
using(HttpWebResponse response = (HttpWebResponse)request.GetResponse()) {
cookies.Add(response.Cookies);
byte[] content;
using(Stream responseStream = response.GetResponseStream()) {
using(MemoryStream memoryStream = new MemoryStream()) {
byte[] buffer = new byte[BUFFER];
int bytes;
while((bytes = responseStream.Read(buffer, 0, BUFFER)) > 0) {
memoryStream.Write(buffer, 0, bytes);
}
content = memoryStream.ToArray();
}
}
if(response.ContentLength > 0 && content.Length != response.ContentLength) {
throw new ApplicationException("incomplete file (expected " + response.ContentLength + ", got " + content.Length + ")");
}
FileInfo result = new FileInfo {
dataStream = new MemoryStream(content),
fileName = response.ResponseUri.Segments.Last(),
filePath = response.ResponseUri.AbsolutePath,
fileSize = response.ContentLength,
lastModified = response.LastModified,
};
response.Close();
return result;
}
}
public static string getPageContent(string requestUrl, Dictionary<string, string> postData, CookieContainer cookies) {
FileInfo info = getPageInfo(requestUrl, postData, cookies);
using(StreamReader reader = new StreamReader(info.dataStream, encoding)) {
return reader.ReadToEnd();
}
}
}
}