public static void Exec(BrewRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
var response = new BrewResponse
{
ContentType = request.Headers.ContentType
};
//Set the current context with information from the current request and response.
BaristaContext.Current = new BaristaContext(request, response);
var instanceSettings = BaristaContext.Current.Request.ParseInstanceSettings();
//If we're not executing with Per-Call instancing, create a mutex to synchronize against.
Mutex syncRoot = null;
if (instanceSettings.InstanceMode != BaristaInstanceMode.PerCall)
{
syncRoot = new Mutex(false, "Barista_ScriptEngineInstance_" + instanceSettings.InstanceName);
}
var webBundle = new BaristaWebBundle();
var source = new BaristaScriptSource(request.Code, request.CodePath);
if (syncRoot != null)
{
syncRoot.WaitOne();
}
try
{
bool isNewScriptEngineInstance;
bool errorInInitialization;
var scriptEngineFactory = new BaristaScriptEngineFactory();
var engine = scriptEngineFactory.GetScriptEngine(webBundle, out isNewScriptEngineInstance, out errorInInitialization);
if (engine == null)
{
throw new InvalidOperationException("Unable to obtain a script engine instance.");
}
if (errorInInitialization)
{
return;
}
try
{
engine.Evaluate(source);
}
catch (JavaScriptException ex)
{
//BaristaDiagnosticsService.Local.LogException(ex, BaristaDiagnosticCategory.JavaScriptException,
// "A JavaScript exception was thrown while evaluating script: ");
scriptEngineFactory.UpdateResponseWithJavaScriptExceptionDetails(engine, ex, response);
}
catch (Exception ex)
{
//BaristaDiagnosticsService.Local.LogException(ex, BaristaDiagnosticCategory.Runtime,
// "An internal error occured while executing script: ");
scriptEngineFactory.UpdateResponseWithExceptionDetails(ex, response);
}
finally
{
//Cleanup
// ReSharper disable RedundantAssignment
engine = null;
// ReSharper restore RedundantAssignment
if (BaristaContext.Current != null)
{
BaristaContext.Current.Dispose();
}
BaristaContext.Current = null;
}
}
finally
{
if (syncRoot != null)
{
syncRoot.ReleaseMutex();
}
}
}
public static BrewResponse Eval(BrewRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
var response = new BrewResponse
{
ContentType = request.Headers.ContentType
};
BaristaContext.Current = new BaristaContext(request, response);
var instanceSettings = BaristaContext.Current.Request.ParseInstanceSettings();
Mutex syncRoot = null;
if (instanceSettings.InstanceMode != BaristaInstanceMode.PerCall)
{
syncRoot = new Mutex(false, "Barista_ScriptEngineInstance_" + instanceSettings.InstanceName);
}
var webBundle = new BaristaWebBundle();
var source = new BaristaScriptSource(request.Code, request.CodePath);
if (syncRoot != null)
{
syncRoot.WaitOne();
}
try
{
bool isNewScriptEngineInstance;
bool errorInInitialization;
var scriptEngineFactory = new BaristaScriptEngineFactory();
var engine = scriptEngineFactory.GetScriptEngine(webBundle, out isNewScriptEngineInstance, out errorInInitialization);
if (engine == null)
{
throw new InvalidOperationException("Unable to obtain a script engine instance.");
}
if (errorInInitialization)
{
return(response);
}
try
{
var result = engine.Evaluate(source);
var isRaw = false;
//If the web instance has been initialized on the web bundle, use the value set via script, otherwise use defaults.
if (webBundle.WebInstance == null || webBundle.WebInstance.Response.AutoDetectContentType)
{
response.ContentType = BrewResponse.AutoDetectContentTypeFromResult(result, response.ContentType);
var arrayResult = result as Barista.Library.Base64EncodedByteArrayInstance;
if (arrayResult != null && arrayResult.FileName.IsNullOrWhiteSpace() == false && response.Headers != null && response.Headers.ContainsKey("Content-Disposition") == false)
{
var br = BrowserUserAgentParser.GetDefault();
var clientInfo = br.Parse(request.Headers.UserAgent);
if (clientInfo.UserAgent.Family == "IE" && (clientInfo.UserAgent.Major == "7" || clientInfo.UserAgent.Major == "8"))
{
response.Headers.Add("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(arrayResult.FileName));
}
else if (clientInfo.UserAgent.Family == "Safari")
{
response.Headers.Add("Content-Disposition", "attachment; filename=" + arrayResult.FileName);
}
else
{
response.Headers.Add("Content-Disposition", "attachment; filename=\"" + HttpUtility.UrlEncode(arrayResult.FileName) + "\"");
}
}
}
if (webBundle.WebInstance != null)
{
isRaw = webBundle.WebInstance.Response.IsRaw;
}
response.SetContentsFromResultObject(engine, result, isRaw);
}
catch (JavaScriptException ex)
{
//BaristaDiagnosticsService.Local.LogException(ex, BaristaDiagnosticCategory.JavaScriptException, "A JavaScript exception was thrown while evaluating script: ");
scriptEngineFactory.UpdateResponseWithJavaScriptExceptionDetails(engine, ex, response);
}
catch (Exception ex)
{
//BaristaDiagnosticsService.Local.LogException(ex, BaristaDiagnosticCategory.Runtime, "An internal error occurred while evaluating script: ");
scriptEngineFactory.UpdateResponseWithExceptionDetails(ex, response);
}
finally
{
//Cleanup
// ReSharper disable RedundantAssignment
engine = null;
// ReSharper restore RedundantAssignment
if (BaristaContext.Current != null)
{
BaristaContext.Current.Dispose();
}
BaristaContext.Current = null;
}
}
finally
{
if (syncRoot != null)
{
syncRoot.ReleaseMutex();
}
}
return(response);
}
