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|
// CoreUtil
//
// Copyright (C) 2012-2014 Daiyuu Nobori. All Rights Reserved.
// Copyright (C) 2012-2014 SoftEther VPN Project at University of Tsukuba. All Rights Reserved.
//
// License: The Apache License, Version 2.0
// https://www.apache.org/licenses/LICENSE-2.0
//
// DISCLAIMER
// ==========
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// THIS SOFTWARE IS DEVELOPED IN JAPAN, AND DISTRIBUTED FROM JAPAN, UNDER
// JAPANESE LAWS. YOU MUST AGREE IN ADVANCE TO USE, COPY, MODIFY, MERGE, PUBLISH,
// DISTRIBUTE, SUBLICENSE, AND/OR SELL COPIES OF THIS SOFTWARE, THAT ANY
// JURIDICAL DISPUTES WHICH ARE CONCERNED TO THIS SOFTWARE OR ITS CONTENTS,
// AGAINST US (SOFTETHER PROJECT, SOFTETHER CORPORATION, DAIYUU NOBORI OR OTHER
// SUPPLIERS), OR ANY JURIDICAL DISPUTES AGAINST US WHICH ARE CAUSED BY ANY KIND
// OF USING, COPYING, MODIFYING, MERGING, PUBLISHING, DISTRIBUTING, SUBLICENSING,
// AND/OR SELLING COPIES OF THIS SOFTWARE SHALL BE REGARDED AS BE CONSTRUED AND
// CONTROLLED BY JAPANESE LAWS, AND YOU MUST FURTHER CONSENT TO EXCLUSIVE
// JURISDICTION AND VENUE IN THE COURTS SITTING IN TOKYO, JAPAN. YOU MUST WAIVE
// ALL DEFENSES OF LACK OF PERSONAL JURISDICTION AND FORUM NON CONVENIENS.
// PROCESS MAY BE SERVED ON EITHER PARTY IN THE MANNER AUTHORIZED BY APPLICABLE
// LAW OR COURT RULE.
//
// USE ONLY IN JAPAN. DO NOT USE THIS SOFTWARE IN ANOTHER COUNTRY UNLESS YOU HAVE
// A CONFIRMATION THAT THIS SOFTWARE DOES NOT VIOLATE ANY CRIMINAL LAWS OR CIVIL
// RIGHTS IN THAT PARTICULAR COUNTRY. USING THIS SOFTWARE IN OTHER COUNTRIES IS
// COMPLETELY AT YOUR OWN RISK. THE SOFTETHER VPN PROJECT HAS DEVELOPED AND
// DISTRIBUTED THIS SOFTWARE TO COMPLY ONLY WITH THE JAPANESE LAWS AND EXISTING
// CIVIL RIGHTS INCLUDING PATENTS WHICH ARE SUBJECTS APPLY IN JAPAN. OTHER
// COUNTRIES' LAWS OR CIVIL RIGHTS ARE NONE OF OUR CONCERNS NOR RESPONSIBILITIES.
// WE HAVE NEVER INVESTIGATED ANY CRIMINAL REGULATIONS, CIVIL LAWS OR
// INTELLECTUAL PROPERTY RIGHTS INCLUDING PATENTS IN ANY OF OTHER 200+ COUNTRIES
// AND TERRITORIES. BY NATURE, THERE ARE 200+ REGIONS IN THE WORLD, WITH
// DIFFERENT LAWS. IT IS IMPOSSIBLE TO VERIFY EVERY COUNTRIES' LAWS, REGULATIONS
// AND CIVIL RIGHTS TO MAKE THE SOFTWARE COMPLY WITH ALL COUNTRIES' LAWS BY THE
// PROJECT. EVEN IF YOU WILL BE SUED BY A PRIVATE ENTITY OR BE DAMAGED BY A
// PUBLIC SERVANT IN YOUR COUNTRY, THE DEVELOPERS OF THIS SOFTWARE WILL NEVER BE
// LIABLE TO RECOVER OR COMPENSATE SUCH DAMAGES, CRIMINAL OR CIVIL
// RESPONSIBILITIES. NOTE THAT THIS LINE IS NOT LICENSE RESTRICTION BUT JUST A
// STATEMENT FOR WARNING AND DISCLAIMER.
//
// READ AND UNDERSTAND THE 'WARNING.TXT' FILE BEFORE USING THIS SOFTWARE.
// SOME SOFTWARE PROGRAMS FROM THIRD PARTIES ARE INCLUDED ON THIS SOFTWARE WITH
// LICENSE CONDITIONS WHICH ARE DESCRIBED ON THE 'THIRD_PARTY.TXT' FILE.
//
//
// SOURCE CODE CONTRIBUTION
// ------------------------
//
// Your contribution to SoftEther VPN Project is much appreciated.
// Please send patches to us through GitHub.
// Read the SoftEther VPN Patch Acceptance Policy in advance:
// http://www.softether.org/5-download/src/9.patch
//
//
// DEAR SECURITY EXPERTS
// ---------------------
//
// If you find a bug or a security vulnerability please kindly inform us
// about the problem immediately so that we can fix the security problem
// to protect a lot of users around the world as soon as possible.
//
// Our e-mail address for security reports is:
// softether-vpn-security [at] softether.org
//
// Please note that the above e-mail address is not a technical support
// inquiry address. If you need technical assistance, please visit
// http://www.softether.org/ and ask your question on the users forum.
//
// Thank you for your cooperation.
//
//
// NO MEMORY OR RESOURCE LEAKS
// ---------------------------
//
// The memory-leaks and resource-leaks verification under the stress
// test has been passed before release this source code.
using System;
using System.Data;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using System.Text;
using System.Configuration;
using System.Collections;
using System.Collections.Generic;
using System.Security.Cryptography;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
using System.Web.Mail;
using System.Threading;
using System.Xml;
using System.Xml.Schema;
using System.Xml.Serialization;
using CoreUtil;
public static class AspUtil
{
public static void Redirect(Page page, string url)
{
Redirect(page, url, true);
}
public static void Redirect(Page page, string url, bool endSession)
{
MultiLang ml = new MultiLang(page, true);
ml.Redirect(url, true);
}
public static string GetCurrentRequestUrl(Page page)
{
string s = (string)page.Request.Headers["SEISAPI_PHYSICAL_URL"];
if (Str.IsEmptyStr(s) == false)
{
string[] tokens = s.Split('?');
return tokens[0];
}
return page.Request.Path;
}
public static string GetCurrentPhysicalFilePathForUser(Page page)
{
string s = (string)page.Request.Headers["SEISAPI_ORIGINAL_FILEPATH"];
if (Str.IsEmptyStr(s) == false)
{
return s;
}
return page.Request.PhysicalPath;
}
public static string RemoveDefaultHtml(string url)
{
string tmp = url.ToLower();
if (tmp.EndsWith("/default.asp") || tmp.EndsWith("/default.aspx") || tmp.EndsWith("/default.htm") || tmp.EndsWith("/default.html"))
{
return GetUrlDirNameFromPath(url);
}
else
{
return url;
}
}
public static string GetUrlDirNameFromPath(string url)
{
string ret = "";
string[] strs = url.Split('/');
int i;
if (strs.Length >= 1)
{
for (i = 0; i < strs.Length - 1; i++)
{
ret += strs[i] + "/";
}
}
return ret;
}
public static string WebPathToFilePath(System.Web.UI.Page page, string path)
{
string appRootFilePath = page.Request.PhysicalApplicationPath;
string appRootVirtualPath = page.Request.ApplicationPath;
string ret;
path = RemoveDefaultHtml(path);
if (path.ToUpper().StartsWith(appRootVirtualPath.ToUpper()) == false)
{
return null;
}
path = path.Substring(appRootVirtualPath.Length).Replace("/", "\\");
if (path.StartsWith("\\"))
{
path = path.Substring(1);
}
ret = appRootFilePath + path;
if (ret.IndexOf("..") != -1)
{
return null;
}
if (ret.EndsWith("\\"))
{
ret = GetDefaultDocumentIfExists(ret);
}
return ret;
}
public static string GetDefaultDocumentIfExists(string dir)
{
string[] targets =
{
"default.aspx",
"default.asp",
"default.html",
"default.htm",
"index.html",
"index.htm",
};
foreach (string s in targets)
{
string name = dir + s;
if (IsFileExists(name))
{
return name;
}
}
return null;
}
public static bool IsFileExists(string name)
{
return File.Exists(name);
}
}
public class MultiLang
{
public readonly Page Page;
public readonly HttpRequest Request;
public readonly HttpResponse Response;
public readonly bool IsUrlModefied;
public readonly string OriginalUrl;
public readonly string PhysicalUrl;
public readonly bool IsFilenameModified;
public readonly string OriginalFileName;
public readonly string OriginalFilePath;
public readonly string Args;
public readonly CoreLanguageClass CurrentLanguage;
public readonly CoreLanguageClass ContentsPrintLanguage;
public readonly string CurrentLanguageCode;
public readonly bool IsCurrentLanguageSupported;
public readonly string GoogleTranslateUrl;
public readonly string OriginalFullUrl;
public readonly bool IsSSL;
public readonly string Host;
public readonly string BasicHostName;
MultiLanguageFilterStream mfs;
public readonly List<KeyValuePair<string, string>> ReplaceList;
public bool DisableFilter
{
get
{
return mfs.DisableFilter;
}
set
{
mfs.DisableFilter = value;
}
}
public readonly string HtmlBody = "";
public readonly string HtmlFileName = "";
static MultiLang()
{
CoreLanguageList.RegardsJapanAsJP = true;
}
public bool IsJapanese
{
get
{
if (this.CurrentLanguage == CoreLanguageList.Japanese)
{
return true;
}
return false;
}
}
public bool IsJapanesePrinting
{
get
{
if (this.ContentsPrintLanguage == CoreLanguageList.Japanese)
{
return true;
}
return false;
}
}
public void Redirect(string url, bool endSession)
{
url = ConvertPath(url);
if (url.StartsWith("http://") || url.StartsWith("https://") || url.StartsWith("ftp://") ||
url.StartsWith("/"))
{
}
else
{
string originalUrl = OriginalUrl;
if (originalUrl.EndsWith("/"))
{
}
else
{
int i;
for (i = originalUrl.Length - 1; i >= 0; i--)
{
if (originalUrl[i] == '/' || originalUrl[i] == '\\')
{
originalUrl = originalUrl.Substring(0, i + 1);
break;
}
}
}
url = originalUrl + url;
}
Response.Redirect(url, endSession);
}
public MultiLang(Page currentPage)
: this(currentPage, false)
{
}
public MultiLang(Page currentPage, bool fast) : this(currentPage, fast, null)
{
}
public MultiLang(Page currentPage, bool fast, string basicHostName)
: this(currentPage, fast, basicHostName, new List<KeyValuePair<string, string>>())
{
}
public MultiLang(Page currentPage, bool fast, string basicHostName, List<KeyValuePair<string, string>> replaceList)
{
this.Page = currentPage;
this.Request = Page.Request;
this.Response = Page.Response;
this.BasicHostName = basicHostName;
string tmp = Page.Request.ServerVariables["HTTPS"];
string hostRaw = Page.Request.Headers["Host"];
this.ReplaceList = replaceList;
bool isSsl = false;
string[] tokens;
string host = "";
tokens = hostRaw.Split(':');
if (tokens.Length >= 1)
{
host = tokens[0];
}
host = host.ToLower();
if (tmp != null)
{
if (tmp.Equals("on", StringComparison.InvariantCultureIgnoreCase))
{
isSsl = true;
}
}
this.IsSSL = isSsl;
this.Host = host;
this.IsUrlModefied = Str.StrToBool((string)Request.Headers["SEISAPI_MODIFIED_URL"]);
this.OriginalUrl = (string)Request.Headers["SEISAPI_ORIGINAL_URL"];
int i;
i = this.OriginalUrl.IndexOf("?");
if (i != -1)
{
this.OriginalUrl = this.OriginalUrl.Substring(0, i);
}
if (Str.IsEmptyStr(this.OriginalUrl) || this.IsUrlModefied == false)
{
this.OriginalUrl = AspUtil.RemoveDefaultHtml(AspUtil.GetCurrentRequestUrl(Page));
}
string s = (string)Request.Headers["SEISAPI_ORIGINAL_FILENAME"];
if (Str.IsEmptyStr(s) == false)
{
this.IsFilenameModified = true;
this.OriginalFileName = s;
this.OriginalFilePath = (string)Request.Headers["SEISAPI_ORIGINAL_FILEPATH"];
}
string langCode = GetCurrentLangCodeFromPath(this.OriginalUrl);
this.CurrentLanguage = CoreLanguageList.GetLanguageClassByName(langCode);
this.CurrentLanguageCode = CurrentLanguage.Name;
try
{
HtmlFileName = AspUtil.WebPathToFilePath(currentPage, AspUtil.GetCurrentRequestUrl(currentPage));
}
catch
{
}
if (this.IsFilenameModified)
{
HtmlFileName = Path.Combine(Path.GetDirectoryName(HtmlFileName), Path.GetFileName(OriginalFilePath));
}
try
{
if (fast == false)
{
HtmlBody = File.ReadAllText(HtmlFileName, Str.Utf8Encoding);
}
}
catch
{
}
PhysicalUrl = AspUtil.RemoveDefaultHtml(AspUtil.GetCurrentRequestUrl((currentPage)));
Args = currentPage.Request.ServerVariables["QUERY_STRING"];
if (CurrentLanguage == CoreLanguageList.Japanese)
{
IsCurrentLanguageSupported = true;
}
else
{
IsCurrentLanguageSupported = Str.SearchStr(HtmlBody, string.Format("<!-- ml:{0} -->", CurrentLanguage.Name), 0, false) != -1;
}
GoogleTranslateUrl = string.Format("http://translate.google.com/translate?js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&sl=ja&tl={1}&u={0}",
HttpUtility.UrlEncode((isSsl ? "https://" : "http://") + host + this.OriginalUrl, Str.Utf8Encoding),
this.CurrentLanguageCode);
OriginalFullUrl = (isSsl ? "https://" : "http://") + host + this.OriginalUrl;
ContentsPrintLanguage = this.CurrentLanguage;
if (IsCurrentLanguageSupported == false)
{
ContentsPrintLanguage = CoreLanguageList.Japanese;
}
if (fast == false)
{
mfs = new MultiLanguageFilterStream(Response.Filter, ContentsPrintLanguage, this.CurrentLanguage, this.BasicHostName, this.ReplaceList);
mfs.Page = Page;
Response.Filter = mfs;
}
}
public string ConvertPath(string url)
{
return ConvertPath(url, this.CurrentLanguage);
}
public string ConvertPath(string url, CoreLanguageClass lang)
{
string ja = CoreLanguageList.Japanese.Name;
if (url.StartsWith("/" + ja, StringComparison.InvariantCultureIgnoreCase))
{
url = "/" + lang.Name + url.Substring(ja.Length + 1);
}
return url;
}
public string GetPathForLanguage(CoreLanguageClass lang)
{
string url = PhysicalUrl;
return ConvertPath(url, lang);
}
public string GetFullUrlForLanguage(CoreLanguageClass lang)
{
string url = (IsSSL ? "https://" : "http://") + Host + GetPathForLanguage(lang);
if (Str.IsEmptyStr(Args) == false)
{
url += "?" + Args;
}
return url;
}
public string ProcStr(string str)
{
return ProcStr(str, ContentsPrintLanguage);
}
public static string ProcStrDefault(string str)
{
return ProcStr(str, CoreLanguageClass.CurrentThreadLanguageClass);
}
public static string ProcStr(string str, CoreLanguageClass lang)
{
return ProcStr(str, lang, lang);
}
public static string ProcStr(string str, CoreLanguageClass lang, CoreLanguageClass langPure)
{
MultiLanguageFilterStream st = new MultiLanguageFilterStream(null, lang, langPure, null, null);
return st.FilterString(str);
}
public static string GetCurrentLangCodeFromPath(string str)
{
char[] sps =
{
'/', '?',
};
string[] tokens = str.Split(sps, StringSplitOptions.RemoveEmptyEntries);
if (tokens.Length >= 1)
{
return tokens[0].ToLower();
}
return CoreLanguageList.Japanese.Name;
}
}
public static class MultiString
{
public const string ChangeLanguage = "[j]Select Language[e]Select Language[/]";
public const string LanguageNotSupported = "[j]申し訳ございませんが、以下のコンテンツは現在日本語で公開されていません。[e]Unfortunately, following contents are not published in English yet. [/]";
public const string ThisIsTranslatedByMachine = "Following contents are translated automatically by Google Translate.";
public const string GoogleTranslate = "[j]Google で翻訳[e]Click here to translate the contents into English by Google Now[/]";
public const string ShowSrc = "Show the original page";
public static string GetStr(string srcStr, CoreLanguageClass lang)
{
return MultiLang.ProcStr(srcStr, lang);
}
}
public class MultiLanguageFilterStream : Stream
{
public static readonly List<KeyValuePair<string, CoreLanguageClass>> langKeys = new List<KeyValuePair<string, CoreLanguageClass>>();
public readonly List<KeyValuePair<string, string>> ReplaceList = null;
public const string TagPure = "<!-- ml:pure -->";
public const string TagEndPure = "<!-- ml:endpure -->";
public bool DisableFilter = false;
public Page Page;
static MultiLanguageFilterStream()
{
langKeys.Add(new KeyValuePair<string, CoreLanguageClass>("[j]", CoreLanguageList.Japanese));
langKeys.Add(new KeyValuePair<string, CoreLanguageClass>("[e]", CoreLanguageList.English));
langKeys.Add(new KeyValuePair<string, CoreLanguageClass>("[/]", null));
}
Stack<CoreLanguageClass> stack = new Stack<CoreLanguageClass>();
CoreLanguageClass currentBodyLanguage
{
get
{
if (stack.Count == 0)
{
return null;
}
else
{
return stack.ToArray()[0];
}
}
}
bool isLang(CoreLanguageClass lang)
{
CoreLanguageClass[] langList = stack.ToArray();
foreach (CoreLanguageClass c in langList)
{
if (c != lang)
{
return false;
}
}
return true;
}
CoreLanguageClass lastBodyLanguage
{
get
{
if (stack.Count == 0)
{
return null;
}
else
{
return stack.Peek();
}
}
}
public string FilterString(string src)
{
string[] strList = Str.DivideStringMulti(src, true,
TagPure, TagEndPure);
bool b = false;
StringBuilder ret = new StringBuilder();
foreach (string str in strList)
{
if (str == TagPure)
{
b = true;
}
else if (str == TagEndPure)
{
b = false;
}
ret.Append(filterStringInner(str, b ? this.currentLanguagePure : this.currentLanguage, this.currentLanguagePure));
}
return ret.ToString();
}
string filterStringInner(string src, CoreLanguageClass useLang, CoreLanguageClass useLangPure)
{
int i;
string ret = src;
if (Str.IsEmptyStr(basicHostName) == false)
{
ret = Str.ReplaceStr(ret, "=\"/\"", "=\"http://" + basicHostName + "/\"", false);
ret = Str.ReplaceStr(ret, "=\'/\'", "=\'http://" + basicHostName + "/\'", false);
ret = Str.ReplaceStr(ret, "=\"/" + CoreLanguageList.Japanese.Name + "/\"", "=\"http://" + basicHostName + "/" + useLangPure.Name + "/\"", false);
ret = Str.ReplaceStr(ret, "=\'/" + CoreLanguageList.Japanese.Name + "/\'", "=\'http://" + basicHostName + "/" + useLangPure.Name + "/\'", false);
}
ret = Str.ReplaceStr(ret, "=\"/" + CoreLanguageList.Japanese.Name + "/", "=\"/" + useLangPure.Name + "/", false);
ret = Str.ReplaceStr(ret, "=\'/" + CoreLanguageList.Japanese.Name + "/", "=\'/" + useLangPure.Name + "/", false);
ret = Str.ReplaceStr(ret, "_lm_" + CoreLanguageList.Japanese.Name, "_lm_" + useLang.Name, false);
if (this.ReplaceList != null)
{
foreach (KeyValuePair<string, string> p in this.ReplaceList)
{
ret = Str.ReplaceStr(ret, p.Key, p.Value, false);
}
}
StringBuilder ret2 = new StringBuilder();
int next = 0;
while (true)
{
int min = int.MaxValue;
int j = -1;
for (i = 0; i < langKeys.Count; i++)
{
int r = Str.SearchStr(ret, langKeys[i].Key, next, false);
if (r != -1)
{
if (r < min)
{
j = i;
min = r;
}
}
}
if (j != -1)
{
KeyValuePair<string, CoreLanguageClass> v = langKeys[j];
if (currentBodyLanguage == null || isLang(useLang))
{
ret2.Append(ret.Substring(next, min - next));
}
if (v.Value != null)
{
if (lastBodyLanguage == null || v.Value.Id <= lastBodyLanguage.Id)
{
stack.Push(v.Value);
}
else
{
stack.Pop();
stack.Push(v.Value);
}
}
else
{
stack.Pop();
}
next = min + v.Key.Length;
}
else
{
if (currentBodyLanguage == null || isLang(useLang))
{
ret2.Append(ret.Substring(next, ret.Length - next));
}
break;
}
}
ret = ret2.ToString();
string lang = useLangPure != CoreLanguageList.Japanese ? useLangPure.Name : "ja";
if (useLangPure != CoreLanguageList.Japanese)
{
ret = Str.ReplaceStr(ret, "<meta http-equiv=\"Content-Language\" content=\"ja\" />",
string.Format("<meta http-equiv=\"Content-Language\" content=\"{0}\" />", lang), false);
}
ret = Str.ReplaceStr(ret, "<html>", string.Format("<html lang=\"{0}\">", lang), false);
next = 0;
while (true)
{
i = Str.SearchStr(ret, "<link rel=\"stylesheet\" href=\"", next, false);
if (i == -1)
{
break;
}
next = i + 1;
int j = Str.SearchStr(ret, "/>", next, false);
if (j == -1)
{
break;
}
string linkStr = ret.Substring(i, j - i + 2 - 1);
int k = Str.SearchStr(linkStr, "href=\"", 0, false);
if (k != -1)
{
int m = Str.SearchStr(linkStr, "\"", k + 6, false);
if (m != -1)
{
string fileName = linkStr.Substring(k + 6, m - k - 6);
fileName = Str.ReplaceStr(fileName, ".css", "_" + lang + ".css", false);
string linkStr2 = string.Format("<link rel=\"stylesheet\" href=\"{0}\" type=\"text/css\" />", fileName);
ret = ret.Substring(0, j + 2) + linkStr2 + ret.Substring(j + 2);
next = j + 2 + linkStr2.Length;
}
}
}
return ret;
}
Stream baseStream;
long position;
CoreLanguageClass currentLanguage;
CoreLanguageClass currentLanguagePure;
string basicHostName;
public override bool CanRead
{
get { return true; }
}
public override bool CanSeek
{
get { return true; }
}
public override bool CanWrite
{
get { return true; }
}
public override void Flush()
{
baseStream.Flush();
}
public override long Length
{
get { return 0; }
}
public override long Position
{
get
{
return position;
}
set
{
position = value;
}
}
public override long Seek(long offset, SeekOrigin origin)
{
return baseStream.Seek(offset, origin);
}
public override void SetLength(long value)
{
baseStream.SetLength(value);
}
public MultiLanguageFilterStream(Stream baseStream, CoreLanguageClass currentLanguage, CoreLanguageClass currentLanguagePure, string basicHostName, List<KeyValuePair<string, string>> replaceList)
{
this.baseStream = baseStream;
this.currentLanguage = currentLanguage;
this.currentLanguagePure = currentLanguagePure;
this.basicHostName = basicHostName;
this.ReplaceList = replaceList;
}
public override int Read(byte[] buffer, int offset, int count)
{
return baseStream.Read(buffer, offset, count);
}
string savedString = "";
public override void Write(byte[] buffer, int offset, int count)
{
if (DisableFilter)
{
baseStream.Write(buffer, offset, count);
return;
}
byte[] data = new byte[count];
Buffer.BlockCopy(buffer, offset, data, 0, count);
string inSrc = savedString + ByteDataToString(data);// Str.Utf8Encoding.GetString(data);
savedString = "";
if (inSrc.Length >= 2)
{
int len = inSrc.Length;
string last2 = inSrc.Substring(len - 2, 2);
string last1 = inSrc.Substring(len - 1, 1);
if (last1 == "[")
{
inSrc = inSrc.Substring(0, len - 1);
savedString = last1;
}
else if (Str.InStr(last2, "["))
{
inSrc = inSrc.Substring(0, len - 2);
savedString = last2;
}
}
string inStr = FilterString(inSrc);
data = StringToByteData(inStr);// Str.Utf8Encoding.GetBytes(inStr);
if (data.Length >= 1)
{
baseStream.Write(data, 0, data.Length);
//byte[] t = Str.Utf8Encoding.GetBytes("" + count.ToString() + "");
//baseStream.Write(t, 0, t.Length);
}
}
public static string ByteDataToString(byte[] data)
{
StringBuilder sb = new StringBuilder();
foreach (byte b in data)
{
if (b <= 0x7f && b != (byte)('\\'))
{
sb.Append((char)b);
}
else
{
sb.Append("\\" + ((uint)b).ToString("X2"));
}
}
return sb.ToString();
}
public byte[] StringToByteData(string str)
{
int i, len;
len = str.Length;
Buf b = new Buf();
for (i = 0; i < len; i++)
{
char c = str[i];
if (c == '\\')
{
string tmp = "";
//try
{
tmp = "" + str[i + 1] + str[i + 2];
}
/*catch (Exception ex)
{
tmp += "|err=" + ex.Message + ",len=" + len + ",i=" + i + "|src=" + str + "|";
byte[] aa = Str.Utf8Encoding.GetBytes(tmp);
b.Write(aa);
}*/
i += 2;
//try
{
b.WriteByte(byte.Parse(tmp, System.Globalization.NumberStyles.HexNumber));
}
//catch
{
}
}
else
{
b.WriteByte((byte)c);
}
}
return b.ByteData;
}
}
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