Added missing samples for CSharp

csharp/src/detectors/cookie-without-http-only-flag/web-config-insecure-cookie-settings-csharp-rule.web.config

@@ -0,0 +1,88 @@
+// {fact [email protected] defects=0}
+<?xml version="1.0" encoding="utf-8"?>
+	 <configuration>
+	   <system.web>
+	       // Compliant: Sensitive cookie with 'HttpOnly' flag
+	       <httpCookies httpOnlyCookies="true" requireSSL="true" />
+	       <roleManager defaultProvider="SqlProvider"
+	         enabled="true"
+	         cacheRolesInCookie="true"
+	         cookieName=".ASPROLES"
+	         cookieTimeout="30"
+	         cookiePath="/MyApplication"
+	         cookieSlidingExpiration="true"
+	         cookieProtection="Encrypted" >
+	         <providers>
+	           <add
+	             name="SqlProvider"
+	             type="System.Web.Security.SqlRoleProvider"
+	             connectionStringName="SqlServices"
+	             applicationName="MyApplication" />
+	         </providers>
+	       </roleManager>
+	   </system.web>
+	   <system.webServer>
+	     <handlers>
+	       <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModule" resourceType="Unspecified" />
+	     </handlers>
+	     <aspNetCore processPath="dotnet" arguments=".\Microsoft.IIS.Administration.dll" forwardWindowsAuthToken="true" stdoutLogEnabled="false" stdoutLogFile=".\logs\stdout" />
+	     <security>
+	       <authentication>
+	         <windowsAuthentication enabled="true" />
+	       </authentication>
+	       <authorization>
+	         <clear />
+	         <add accessType="Allow" roles="Administrators,IIS Administrators" />
+	       </authorization>
+	     </security>
+	   </system.webServer>
+	   </location>
+	 </configuration>
+	 //{fact}
+
+
+     //{fact [email protected] defects=0}
+	 <?xml version="1.0" encoding="utf-8"?>
+	 <configuration>
+	   <system.web>
+	         // Noncompliant: Sensitive cookie without 'HttpOnly' flag
+	       <httpCookies httpOnlyCookies="false" requireSSL="false" />
+	       <roleManager defaultProvider="SqlProvider"
+	         enabled="true"
+	         cacheRolesInCookie="true"
+	         cookieName=".ASPROLES"
+	         cookieTimeout="30"
+	         cookiePath="/MyApplication"
+	         cookieSlidingExpiration="true"
+	         cookieProtection="Encrypted" >
+	         <providers>
+	           <add
+	             name="SqlProvider"
+	             type="System.Web.Security.SqlRoleProvider"
+	             connectionStringName="SqlServices"
+	             applicationName="MyApplication" />
+	         </providers>
+	       </roleManager>
+	   </system.web>
+	   <system.webServer>
+	     <handlers>
+	       <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModule" resourceType="Unspecified" />
+	     </handlers>
+	     <aspNetCore processPath="dotnet" arguments=".\Microsoft.IIS.Administration.dll" forwardWindowsAuthToken="true" stdoutLogEnabled="false" stdoutLogFile=".\logs\stdout" />
+	     <security>
+	       <authentication mode="Forms">
+	         <forms loginUrl="member_login.aspx"
+	           cookieless="UseCookies"
+	           // ruleid: web-config-insecure-cookie-settings-csharp-rule
+	           requireSSL="false"
+	           path="/MyApplication" />
+	       </authentication>
+	       <authorization>
+	         <clear />
+	         <add accessType="Allow" roles="Administrators,IIS Administrators" />
+	       </authorization>
+	     </security>
+	   </system.webServer>
+	   </location>
+	 </configuration>
+     //{fact}

csharp/src/detectors/csharp-ldap-injection/csharp-ldap-injection.cs

@@ -0,0 +1,55 @@
+// {fact [email protected] defects=1}
+public User Login(string userName, string password)
+	 {
+	     using (DirectoryEntry entry = new DirectoryEntry(config.Path, config.UserDomainName + "\\" + userName, password))
+	     {
+	         using (DirectorySearcher searcher = new DirectorySearcher(entry))
+	         {
+	             // Noncompliant:  improper validation or sanitization
+	             searcher.Filter = String.Format("({0}={1})", SAMAccountNameAttribute, userName);
+	             searcher.PropertiesToLoad.Add(DisplayNameAttribute);
+	             searcher.PropertiesToLoad.Add(SAMAccountNameAttribute);
+	             var result = searcher.FindOne();
+	             if (result != null)
+	             {
+	                 var displayName = result.Properties[DisplayNameAttribute];
+	                 var samAccountName = result.Properties[SAMAccountNameAttribute];
+
+	                 return new User
+	                 {
+	                     DisplayName = displayName == null || displayName.Count <= 0 ? null : displayName[0].ToString(),
+	                     UserName = samAccountName == null || samAccountName.Count <= 0 ? null : samAccountName[0].ToString()
+	                 };
+	             }
+	         }
+	     }
+	 }
+// {/fact}
+
+// {fact [email protected] defects=0}
+	 public User Login1(string userName, string password)
+	 {
+	     using (DirectoryEntry entry = new DirectoryEntry(config.Path, config.UserDomainName + "\\" + userName, password))
+	     {
+	         using (DirectorySearcher searcher = new DirectorySearcher(entry))
+	         {
+	             // Compliant:  proper validation or sanitization
+	             searcher.Filter = String.Format("({0}={1})", Encoder.LdapFilterEncode(SAMAccountNameAttribute), Encoder.LdapFilterEncode(userName));
+	             searcher.PropertiesToLoad.Add(DisplayNameAttribute);
+	             searcher.PropertiesToLoad.Add(SAMAccountNameAttribute);
+	             var result = searcher.FindOne();
+	             if (result != null)
+	             {
+	                 var displayName = result.Properties[DisplayNameAttribute];
+	                 var samAccountName = result.Properties[SAMAccountNameAttribute];
+
+	                 return new User
+	                 {
+	                     DisplayName = displayName == null || displayName.Count <= 0 ? null : displayName[0].ToString(),
+	                     UserName = samAccountName == null || samAccountName.Count <= 0 ? null : samAccountName[0].ToString()
+	                 };
+	             }
+	         }
+	     }
+	 }
+     // {/fact}

csharp/src/detectors/double-epsilon-equality/doubleepsilonequality.cs

@@ -0,0 +1,22 @@
+using System;
+
+	 public class Example
+	 {
+
+        // {fact [email protected] defects=1}
+	    static bool lazyEqualLeftCompare(double v1, double v2){
+	        // Noncompliant: valur other than 0
+	        return Math.Abs(v1 - v2) <= Double.Epsilon;
+	    }
+        // {/fact}
+
+        // {fact [email protected] defects=0}
+
+	    static bool uselessZeroEqual(){
+	        double v1 = 0;
+	        double v2 = 0;
+	        // Compliant: value is zero
+	        return Math.Abs(v1 - v2) <= Double.Epsilon;
+	    }
+        // {/fact}
+     }

csharp/src/detectors/jwt-tokenvalidationparameters-no-expiry/jwttokenvalidationparametersnoexpiry.cs

@@ -0,0 +1,30 @@
+// {fact [email protected] defects=1}
+services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme).AddJwtBearer(options =>
+	             {
+
+	                 options.TokenValidationParameters = new TokenValidationParameters
+	                 {
+	                     // Noncompliant: ValidateLifetime is set to false
+	                     ValidateLifetime = false,
+	                     RequireSignedTokens = true,
+	                     ValidateIssuer = false,
+	                     ValidateAudience = false,
+	                     RequireExpirationTime = true
+	                 };
+	             });
+     // {/fact}
+
+    // {fact [email protected] defects=0}
+	 services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme).AddJwtBearer(options =>
+	             {
+
+	                 options.TokenValidationParameters = new TokenValidationParameters
+	                 {
+	                     // Compliant:  ValidateLifetime is set to true
+	                     ValidateLifetime = true,
+	                     RequireSignedTokens = true,
+	                     ValidateIssuer = false,
+	                     ValidateAudience = false,
+	                     RequireExpirationTime = true
+	                 };
+	             });

csharp/src/detectors/mass-assignment/MassAssignment.cs

@@ -0,0 +1,18 @@
+	 using Microsoft.AspNetCore.Mvc;
+	 // {fact [email protected] defects=1}
+	 public IActionResult Create(UserModel model)
+	 {
+	     context.SaveChanges();
+	     // Noncompliant: `Bind` attribute not present
+	     return View("Index", model);
+	 }
+	  // {fact}
+
+     // {fact [email protected] defects=0}
+	 public IActionResult Create([Bind(nameof(UserModel.Name))] UserModel model)
+	 {
+	     context.SaveChanges();
+	     // Compliant: `Bind` attribute present
+	     return View("Index", model);
+	 }
+      // {fact}

csharp/src/detectors/memory-marshal-create-span/MemMarshalCreateSpan.cs

@@ -0,0 +1,22 @@
+namespace MemMarshalCreateSpan {
+	     public class MemMarshalCreateSpan {
+             // {fact [email protected] defects=1}
+	         public void MarshalNoncompliant() {
+
+	             // Noncompliant: length argument is not checked
+	             Span<T> ToSpan() => MemoryMarshal.CreateSpan(ref _e0, 1);
+
+	         }
+             // {/fact}
+
+            // {fact [email protected] defects=0}
+             public void MarshalCompliant() {
+                [email protected]
+
+	             // Compliant: length argument is checked
+	             Span<int> intSpan = MemoryMarshal.Cast<byte, int>(byteSpan);
+
+	         }
+             // {/fact}
+	     }
+	 }

csharp/src/detectors/net-web-config-debug/net-web-config-debug.web.config

@@ -0,0 +1,25 @@
+ <?xml version="1.0" encoding="utf-8" ?>
+ 	#{fact rule=debugbinary@v1.0eifjcbfcvuunegvkrtccfccigfktjuddgegletttbctr
+	 defects=1}
+	 <configuration>
+	   <system.web>
+	     # Noncompliant: `debug` is set to `false`
+	     <compilation
+	       defaultLanguage="c#"
+	       debug="true"
+	     />
+	     <trace enabled="true" requestLimit="10" pageOutput="false" traceMode="SortByTime" localOnly="true"/>
+	   </system.web>
+	 </configuration>
+	#{fact}
+
+	#{fact [email protected] defects=0}
+	 <configuration>
+	   <system.web>
+	     # complaint: `debug` is set to `true`
+	     <compilation
+	       defaultLanguage="c#"
+	     />
+	   </system.web>
+	 </configuration>
+	 #fact

csharp/src/detectors/prevent-excessive-authentication/PreventExcessiveAuthentication.cs

@@ -0,0 +1,73 @@
+// {fact [email protected] defects=1}
+public async Task<IActionResult> OnPostAsync(string returnUrl = null)
+	 {
+	     returnUrl = returnUrl ?? Url.Content("~/");
+
+	     if (ModelState.IsValid)
+	     {
+	         // Noncompliant: lockoutOnFailure us set to false
+	         var result = await _signInManager.PasswordSignInAsync(Input.Email,
+	             Input.Password, Input.RememberMe,
+	             lockoutOnFailure: false);
+	         if (result.Succeeded)
+	         {
+	             _logger.LogInformation("User logged in.");
+	             return LocalRedirect(returnUrl);
+	         }
+	         if (result.RequiresTwoFactor)
+	         {
+	             return RedirectToPage("./LoginWith2fa", new { ReturnUrl = returnUrl,
+	                 Input.RememberMe });
+	         }
+	         if (result.IsLockedOut)
+	         {
+	             _logger.LogWarning("User account locked out.");
+	             return RedirectToPage("./Lockout");
+	         }
+	         else
+	         {
+	             ModelState.AddModelError(string.Empty, "Invalid login attempt.");
+	             return Page();
+	         }
+	     }
+
+	     return Page();
+	 }
+	 //{fact}
+
+    // {fact [email protected] defects=0}
+	 public async Task<IActionResult> OnPostAsync(string returnUrl = null)
+	 {
+	     returnUrl = returnUrl ?? Url.Content("~/");
+	     if (ModelState.IsValid)
+	     {
+	         // Compliant:lockoutOnFailure is set to true
+	         var result = await _signInManager.PasswordSignInAsync(Input.Email,
+	             Input.Password, Input.RememberMe,
+	             lockoutOnFailure: true);
+
+	         if (result.Succeeded)
+	         {
+	             _logger.LogInformation("User logged in.");
+	             return LocalRedirect(returnUrl);
+	         }
+	         if (result.RequiresTwoFactor)
+	         {
+	             return RedirectToPage("./LoginWith2fa", new { ReturnUrl = returnUrl,
+	                 Input.RememberMe });
+	         }
+	         if (result.IsLockedOut)
+	         {
+	             _logger.LogWarning("User account locked out.");
+	             return RedirectToPage("./Lockout");
+	         }
+	         else
+	         {
+	             ModelState.AddModelError(string.Empty, "Invalid login attempt.");
+	             return Page();
+	         }
+	     }
+
+	     return Page();
+	 }
+//{fact}

csharp/src/detectors/razor-use-of-htmlstring/razor-use-of-htmlstring.cshtml

@@ -0,0 +1,31 @@
+	  <!-- this is a test for C# from the community contributor and is left as-is for future forking into C# specific rules -->
+      <!-- #{fact [email protected] defects=1} -->
+	  public void RenderDescription(string description)
+	  {
+	      var newcontent = new Microsoft.AspNetCore.Html.HtmlString(description);
+	  }
+
+
+	  <div>
+	 	<div>
+	         <!-- Noncompliant: Improper Encoding or Escaping of Output -->
+	 		<div>@(new HtmlString(description))</div>
+	 	</div>
+	 </div>
+	 <!--{fact}-->
+
+	 <!-- this is a test for C# from the community contributor and is left as-is for future forking into C# specific rules -->
+      <!-- #{fact [email protected] defects=0} -->
+	  public void RenderDescription(string description)
+	  {
+	      var newcontent = new Microsoft.AspNetCore.Html.HtmlString(WebUtility.HtmlEncode(description));
+	  }
+
+
+	  <div>
+	 	<div>
+	         <!-- Compliant: Proper Encoding or Escaping of Output -->
+	 		<div>@(new HtmlString(HttpUtility.HtmlEncode(description)))</div>
+	 	</div>
+	 </div>
+ <!--{fact}-->