/// <summary>
/// This method is called during the module's BeginRequest event.
/// </summary>
/// <param name="requestedRawUrl">The RawUrl being requested (includes path and querystring).</param>
/// <param name="app">The HttpApplication instance.</param>
protected override void Rewrite(string requestedPath, System.Web.HttpApplication app)
{
// log information to the Trace object.
app.Context.Trace.Write("ModuleRewriter", "Entering ModuleRewriter");
// get the configuration rules
RewriterRuleCollection rules = RewriterConfiguration.GetConfig().Rules;
// iterate through each rule...
for (int i = 0; i < rules.Count; i++)
{
// get the pattern to look for, and Resolve the Url (convert ~ into the appropriate directory)
string lookFor = "^" + RewriterUtils.ResolveUrl(app.Context.Request.ApplicationPath, rules[i].LookFor) + "$";
// Create a regex (note that IgnoreCase is set...)
Regex re = new Regex(lookFor, RegexOptions.IgnoreCase);
// See if a match is found
if (re.IsMatch(requestedPath))
{
// match found - do any replacement needed
string sendToUrl = RewriterUtils.ResolveUrl(app.Context.Request.ApplicationPath, re.Replace(requestedPath, rules[i].SendTo));
// log rewriting information to the Trace object
app.Context.Trace.Write("ModuleRewriter", "Rewriting URL to " + sendToUrl);
// Rewrite the URL
RewriterUtils.RewriteUrl(app.Context, sendToUrl);
break; // exit the for loop
}
}
// Log information to the Trace object
app.Context.Trace.Write("ModuleRewriter", "Exiting ModuleRewriter");
}
protected override void Rewrite(string requestedPath, System.Web.HttpApplication app)
{
// get the configuration rules 获得配置规则
RewriterRuleCollection rules = RewriterConfiguration.GetConfig().Rules;
// iterate through each rule... 遍历每个规则...
for (int i = 0; i < rules.Count; i++)
{
// get the pattern to look for, and Resolve the Url (convert ~ into the appropriate directory) 获得要查找的模式，并且解析 Url（转换为相应的目录）
string lookFor = "^" + RewriterUtils.ResolveUrl(app.Context.Request.ApplicationPath, rules[i].LookFor) + "$";
// Create a regex (note that IgnoreCase is set...) 创建 regex（请注意，已设置 IgnoreCase...）
Regex re = new Regex(lookFor, RegexOptions.IgnoreCase);
//See if a match is found 查看是否找到了匹配的规则
if (re.IsMatch(requestedPath))
{
//match found - do any replacement needed 找到了匹配的规则 -- 进行必要的替换
string sendToUrl = RewriterUtils.ResolveUrl(app.Context.Request.ApplicationPath, re.Replace(requestedPath, rules[i].SendTo));
// Rewrite the URL 重写 URL
RewriterUtils.RewriteUrl(app.Context, sendToUrl);
break; //exit the for loop 退出 For 循环
}
}
}
public static void ReloadConfig()
{
Rules = RewriterConfiguration.GetConfig().Rules;
CryptoHelper cr = new CryptoHelper();
for (int i = 0; i < Rules.Count; i++)
{
//---------------解密--------------------------
Rules[i].LookFor = cr.Decrypt(Rules[i].LookFor);
Rules[i].SendTo = cr.Decrypt(Rules[i].SendTo);
//---------------完毕-------------------------
}
}
/// <summary>
/// GetHandler is executed by the ASP.NET pipeline after the associated HttpModules have run. The job of
/// GetHandler is to return an instance of an HttpHandler that can process the page.
/// </summary>
/// <param name="context">The HttpContext for this request.</param>
/// <param name="requestType">The HTTP data transfer method (<b>GET</b> or <b>POST</b>)</param>
/// <param name="url">The RawUrl of the requested resource.</param>
/// <param name="pathTranslated">The physical path to the requested resource.</param>
/// <returns>An instance that implements IHttpHandler; specifically, an HttpHandler instance returned
/// by the <b>PageParser</b> class, which is the same class that the default ASP.NET PageHandlerFactory delegates
/// to.</returns>
public virtual IHttpHandler GetHandler(HttpContext context, string requestType, string url, string pathTranslated)
{
// log info to the Trace object...
// context.Trace.Write("RewriterFactoryHandler", "Entering RewriterFactoryHandler");
string sendToUrl = url;
string filePath = pathTranslated;
// get the configuration rules
RewriterRuleCollection rules = RewriterConfiguration.GetConfig().Rules;
// iterate through the rules
for (int i = 0; i < rules.Count; i++)
{
// Get the pattern to look for (and resolve its URL)
string lookFor = "^" + RewriterUtils.ResolveUrl(context.Request.ApplicationPath, rules[i].LookFor) + "$";
// Create a regular expression object that ignores case...
Regex re = new Regex(lookFor, RegexOptions.IgnoreCase);
// Check to see if we've found a match
if (re.IsMatch(url))
{
// do any replacement needed
sendToUrl = RewriterUtils.ResolveUrl(context.Request.ApplicationPath, re.Replace(url, rules[i].SendTo));
// log info to the Trace object...
// context.Trace.Write("RewriterFactoryHandler", "Found match, rewriting to " + sendToUrl);
// Rewrite the path, getting the querystring-less url and the physical file path
string sendToUrlLessQString;
RewriterUtils.RewriteUrl(context, sendToUrl, out sendToUrlLessQString, out filePath);
// return a compiled version of the page
// context.Trace.Write("RewriterFactoryHandler", "Exiting RewriterFactoryHandler"); // log info to the Trace object...
return(PageParser.GetCompiledPageInstance(sendToUrlLessQString, filePath, context));
}
}
// if we reached this point, we didn't find a rewrite match
// context.Trace.Write("RewriterFactoryHandler", "Exiting RewriterFactoryHandler");
// log info to the Trace object...
return(PageParser.GetCompiledPageInstance(url, filePath, context));
}
protected override void Rewrite(string requestedPath, HttpApplication app)
{
app.Context.Trace.Write("ModuleRewriter", "Entering ModuleRewriter");
RewriterRuleCollection rules = RewriterConfiguration.GetConfig().Rules;
for (int i = 0; i < rules.Count; i++)
{
Regex regex = new Regex("^" + RewriterUtils.ResolveUrl(app.Context.Request.ApplicationPath, rules[i].LookFor) + "$", RegexOptions.IgnoreCase);
if (regex.IsMatch(requestedPath))
{
string sendToUrl = RewriterUtils.ResolveUrl(app.Context.Request.ApplicationPath, regex.Replace(requestedPath, rules[i].SendTo));
app.Context.Trace.Write("ModuleRewriter", "Rewriting URL to " + sendToUrl);
RewriterUtils.RewriteUrl(app.Context, sendToUrl);
break;
}
}
app.Context.Trace.Write("ModuleRewriter", "Exiting ModuleRewriter");
}
