Do not add integratedMode precondition and add httpModule for old IIS and classic pipeline(#34)

Author: Liudmila Molkova

src/Packages/Microsoft.AspNet.TelemetryCorrelation/content/net45/web.config.install.xdt

@@ -1,9 +1,32 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
 
+  <!-- Insert global system.web node in any case -->
+  <system.web xdt:Transform="InsertIfMissing">
+  </system.web>
+
+  <!-- Search for system.web nodes:
+        - globally
+        - under location[@path='.']
+        - under location[count(@path)=0]
+        If any of above contains httpModules section - it will be reused. 
+        Otherwise it will be created under /configuration/system.web (globally)
+  -->
+  <system.web xdt:Locator="XPath(//system.web[(count(parent::location) = 0) or (count(parent::location[@path != '.' and count(@path) != 0]) = 0)])">
+    <httpModules xdt:Transform="InsertIfMissing">
+      <add name="TelemetryCorrelationHttpModule" type="Microsoft.AspNet.TelemetryCorrelation.TelemetryCorrelationHttpModule, Microsoft.AspNet.TelemetryCorrelation" xdt:Transform="Remove" xdt:Locator="Match(type)"/>
+      <add name="TelemetryCorrelationHttpModule" type="Microsoft.AspNet.TelemetryCorrelation.TelemetryCorrelationHttpModule, Microsoft.AspNet.TelemetryCorrelation" xdt:Transform="InsertIfMissing" xdt:Locator="Match(type)"/>
+    </httpModules>
+  </system.web>
+
   <system.webServer xdt:Transform="InsertIfMissing">
   </system.webServer>
 
+  <!-- Only one validation node is allowed to be deinfed globally or in global location tags. See explanaition above for httpModules on how it works -->
+  <system.webServer xdt:Locator="XPath(//system.webServer[(count(parent::location) = 0) or (count(parent::location[@path != '.' and count(@path) != 0]) = 0)])">
+    <validation validateIntegratedModeConfiguration="false" xdt:Transform="InsertIfMissing" />
+  </system.webServer>
+
   <!-- Search for system.web nodes:
         - globally
         - under location[@path='.']
@@ -17,9 +40,9 @@
     <modules xdt:Transform="InsertIfMissing">
       <remove name="TelemetryCorrelationHttpModule" xdt:Transform="InsertIfMissing" xdt:Locator="Match(name)"/>
       <add name="TelemetryCorrelationHttpModule" type="Microsoft.AspNet.TelemetryCorrelation.TelemetryCorrelationHttpModule, Microsoft.AspNet.TelemetryCorrelation"
-           preCondition="integratedMode,managedHandler" xdt:Transform="Remove" xdt:Locator="Match(type)"/>
+           preCondition="managedHandler" xdt:Transform="Remove" xdt:Locator="Match(type)"/>
       <add name="TelemetryCorrelationHttpModule" type="Microsoft.AspNet.TelemetryCorrelation.TelemetryCorrelationHttpModule, Microsoft.AspNet.TelemetryCorrelation"
-           preCondition="integratedMode,managedHandler" xdt:Transform="InsertIfMissing" xdt:Locator="Match(type)"/>
+           preCondition="managedHandler" xdt:Transform="InsertIfMissing" xdt:Locator="Match(type)"/>
     </modules>
   </system.webServer>
 </configuration>

src/Packages/Microsoft.AspNet.TelemetryCorrelation/content/net45/web.config.uninstall.xdt

@@ -1,12 +1,17 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
+  <system.web xdt:Locator="XPath(//system.web[(count(parent::location) = 0) or (count(parent::location[@path != '.' and count(@path) != 0]) = 0)])">
+    <httpModules>
+      <add name="TelemetryCorrelationHttpModule" type="Microsoft.AspNet.TelemetryCorrelation.TelemetryCorrelationHttpModule, Microsoft.AspNet.TelemetryCorrelation" preCondition="managedHandler" xdt:Transform="Remove" xdt:Locator="Match(type)"/>
+    </httpModules>
+  </system.web>
 
   <system.webServer>
     <modules>
       <remove name="TelemetryCorrelationHttpModule" xdt:Transform="Remove" xdt:Locator="Match(name)"/>
       <add name="TelemetryCorrelationHttpModule" 
            type="Microsoft.AspNet.TelemetryCorrelation.TelemetryCorrelationHttpModule, Microsoft.AspNet.TelemetryCorrelation"
-           preCondition="integratedMode,managedHandler" xdt:Transform="Remove" xdt:Locator="Match(type)"/>
+           preCondition="managedHandler" xdt:Transform="Remove" xdt:Locator="Match(type)"/>
     </modules>
   </system.webServer>
 </configuration>