產生:初始/範例DB的流程
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150
web/admin/follower/follower_code.aspx
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150
web/admin/follower/follower_code.aspx
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<%@ Page Language="C#" %>
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<%@ Import Namespace="System.Linq" %>
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<%@ Import Namespace="System.Text" %>
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<%@ Import Namespace="System.Collections.Generic" %>
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<%@ Import Namespace="Newtonsoft.Json" %>
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<script runat="server">
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protected void Page_Load(object sender, EventArgs e)
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{
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Model.ezEntities _db = new Model.ezEntities();
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MyWeb.encrypt encrypt = new MyWeb.encrypt();
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var list = _db.followers.ToList();
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StringBuilder html = new StringBuilder();
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html.Append("<html><head><title>信眾資料工具</title></head><body>");
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html.Append("<h2>信眾資料 - 加密/解密對照</h2>");
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html.Append("<table border=\"1\" cellpadding=\"5\" cellspacing=\"0\">");
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html.Append("<tr style=\"background-color: #f0f0f0; font-weight: bold;\">");
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html.Append("<th>num</th>");
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html.Append("<th>f_number</th>");
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html.Append("<th>u_name</th>");
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html.Append("<th>phone (加密)</th>");
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html.Append("<th>cellphone (加密)</th>");
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html.Append("<th>id_code (加密)</th>");
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html.Append("<th>passport (加密)</th>");
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html.Append("<th>phone (解密)</th>");
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html.Append("<th>cellphone (解密)</th>");
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html.Append("<th>id_code (解密)</th>");
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html.Append("<th>passport (解密)</th>");
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html.Append("<th>分隔符號連接</th>");
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html.Append("<th>HEX</th>");
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html.Append("<th>HEX 還原</th>");
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html.Append("<th>SQL UPDATE</th>");
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html.Append("</tr>");
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foreach (var item in list)
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{
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string phone_encrypted = item.phone ?? "";
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string cellphone_encrypted = item.cellphone ?? "";
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string id_code_encrypted = item.id_code ?? "";
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string passport_encrypted = item.passport ?? "";
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string phone_decrypted = "";
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string cellphone_decrypted = "";
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string id_code_decrypted = "";
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string passport_decrypted = "";
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try {
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if (!string.IsNullOrEmpty(phone_encrypted))
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phone_decrypted = encrypt.DecryptAutoKey(phone_encrypted);
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} catch { phone_decrypted = phone_encrypted; }
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try {
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if (!string.IsNullOrEmpty(cellphone_encrypted))
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cellphone_decrypted = encrypt.DecryptAutoKey(cellphone_encrypted);
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} catch { cellphone_decrypted = cellphone_encrypted; }
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try {
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if (!string.IsNullOrEmpty(id_code_encrypted))
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id_code_decrypted = encrypt.DecryptAutoKey(id_code_encrypted);
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} catch { id_code_decrypted = id_code_encrypted; }
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try {
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if (!string.IsNullOrEmpty(passport_encrypted))
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passport_decrypted = encrypt.DecryptAutoKey(passport_encrypted);
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} catch { passport_decrypted = passport_encrypted; }
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html.Append("<tr>");
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html.Append("<td>").Append(item.num.ToString()).Append("</td>");
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html.Append("<td>").Append(Server.HtmlEncode(item.f_number ?? "")).Append("</td>");
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html.Append("<td>").Append(Server.HtmlEncode(item.u_name ?? "")).Append("</td>");
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html.Append("<td>").Append(Server.HtmlEncode(phone_encrypted)).Append("</td>");
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html.Append("<td>").Append(Server.HtmlEncode(cellphone_encrypted)).Append("</td>");
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html.Append("<td>").Append(Server.HtmlEncode(id_code_encrypted)).Append("</td>");
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html.Append("<td>").Append(Server.HtmlEncode(passport_encrypted)).Append("</td>");
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html.Append("<td>").Append(Server.HtmlEncode(phone_decrypted)).Append("</td>");
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html.Append("<td>").Append(Server.HtmlEncode(cellphone_decrypted)).Append("</td>");
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html.Append("<td>").Append(Server.HtmlEncode(id_code_decrypted)).Append("</td>");
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html.Append("<td>").Append(Server.HtmlEncode(passport_decrypted)).Append("</td>");
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// 組合分隔符號連接：phone|cellphone|id_code|passport (解密的)
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string joinedString = string.Join("|", new string[] {
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phone_decrypted,
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cellphone_decrypted,
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id_code_decrypted,
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passport_decrypted
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});
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html.Append("<td>").Append(Server.HtmlEncode(joinedString)).Append("</td>");
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// 將連接字串轉換為 HEX
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string hexString = "";
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try {
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byte[] bytes = Encoding.UTF8.GetBytes(joinedString);
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hexString = BitConverter.ToString(bytes).Replace("-", "").ToLower();
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} catch {
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hexString = "";
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}
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html.Append("<td>").Append(Server.HtmlEncode(hexString)).Append("</td>");
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// 將 HEX 還原為原來的字串
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string hexDecoded = "";
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try {
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byte[] hexBytes = Enumerable.Range(0, hexString.Length)
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.Where(x => x % 2 == 0)
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.Select(x => Convert.ToByte(hexString.Substring(x, 2), 16))
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.ToArray();
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hexDecoded = Encoding.UTF8.GetString(hexBytes);
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} catch {
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hexDecoded = "";
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}
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html.Append("<td>").Append(Server.HtmlEncode(hexDecoded)).Append("</td>");
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// 生成 SQL UPDATE 語句
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string sqlUpdate = "";
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if (!string.IsNullOrEmpty(hexString))
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{
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// 對 HEX 字串中的單引號進行轉義（SQL 需要兩個單引號）
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string escapedHex = hexString.Replace("'", "''");
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sqlUpdate = string.Format("UPDATE followers SET search_keywords = '{0}' WHERE num = {1};",
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escapedHex, item.num);
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}
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html.Append("<td><pre style=\"margin:0; font-size:12px;\">").Append(Server.HtmlEncode(sqlUpdate)).Append("</pre></td>");
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html.Append("</tr>");
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}
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html.Append("</table>");
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html.Append("<p>總筆數: ").Append(list.Count).Append("</p>");
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html.Append("</body></html>");
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_db.Dispose();
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Response.Write(html.ToString());
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Response.End();
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}
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</script>
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<!--
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-- 方法 1: 搜尋 HEX 編碼的 searchable_field，並顯示解碼後的值
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DECLARE @searchKeyword VARCHAR(50) = '1286'
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DECLARE @hexKeyword VARCHAR(MAX) = CONVERT(VARCHAR(MAX), CONVERT(VARBINARY(MAX), @searchKeyword), 2)
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SELECT
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num,
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f_number,
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u_name,
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-- 解碼 search_keywords (HEX → 文字)
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CONVERT(VARCHAR(MAX),
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CONVERT(VARBINARY(MAX), search_keywords, 2)
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) AS decoded_searchable_field
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FROM followers
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WHERE search_keywords LIKE '%' + @hexKeyword + '%'
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-->
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