public override byte[] StopFiltering(int itemId, bool deleteData)
{
if (HasErrored)
{
return(null);
}
if ((CaptureStream) != null)
{
CaptureStream.Close();
if (File.Exists(CachedOutputFileName))
{
FileSystemUtils.DeleteFileWithWait(CachedOutputFileName, 100, 200);
}
File.Move(CachedOutputTempFileName, CachedOutputFileName);
StreamWriter oWrite = File.CreateText(CachedOutputAttribFileName);
oWrite.WriteLine(_cacheExpiration.ToString());
oWrite.Close();
}
if (deleteData)
{
FileSystemUtils.DeleteFileWithWait(CachedOutputFileName, 100, 200);
FileSystemUtils.DeleteFileWithWait(CachedOutputAttribFileName, 100, 200);
}
return(null);
}
static void Main(string[] args)
{
bool capture = true;
//bool mock = true;
bool mock = false;
SerialPort port = null;
Stream ecuStream;
if (mock)
{
ecuStream = MockEcuStream.GetInstance();
}
else
{
port = new SerialPort("COM3", 4800, Parity.None, 8, StopBits.One);
port.Open();
port.ReadTimeout = 1000;
port.DiscardInBuffer();
port.DiscardOutBuffer();
ecuStream = port.BaseStream;
}
if (capture)
{
Stream captureStream = File.Open(captureFileName, FileMode.OpenOrCreate, FileAccess.Write, FileShare.Read);
captureStream.SetLength(0);
ecuStream = new CaptureStream(ecuStream, new StreamWriter(captureStream));
}
ManualLoggingTest(ecuStream, port);
//ReadMultipleTest(ecuStream, port);
}
void context_PreSendRequestContent(object sender, EventArgs e)
{
if (_LogAlwaysResponse || _IsMatch)
{
CaptureStream filter = _context.Response.Filter as CaptureStream;
if (filter != null)
{
string responseText = filter.StreamContent;
//LOG responseText
}
}
}
public virtual byte[] StopFiltering(int itemId, bool deleteData)
{
if (HasErrored)
{
return(null);
}
if ((((CaptureStream) != null)))
{
CaptureStream.Position = 0;
var reader = new StreamReader(CaptureStream, Encoding.Default);
string output = reader.ReadToEnd();
AddItemToCache(itemId, output);
CaptureStream.Close();
CaptureStream = null;
}
if (deleteData)
{
RemoveItemFromCache(itemId);
}
return(null);
}
public void CaptureStreamRead()
{
Stream memoryStream = new MemoryStream();
TextWriter log = new StreamWriter(memoryStream);
Stream dataStream = new MemoryStream();
dataStream.Write(new byte[] { 1, 2, 3, 4, 5 }, 0, 5);
dataStream.Position = 0;
CaptureStream target = new CaptureStream(dataStream, log);
byte[] buffer = new byte[5];
int offset = 0;
int count = buffer.Length;
target.Read(buffer, offset, count);
memoryStream.Position = 0;
TextReader reader = new StreamReader(memoryStream);
string actual = reader.ReadToEnd();
string expected = "Read 0x01, 0x02, 0x03, 0x04, 0x05, " + Environment.NewLine;
Assert.AreEqual(expected, actual);
}
public void OnResultExecuted(ResultExecutedContext filterContext)
{
var captureHandlerIsAttached = false;
try {
// This filter is not reentrant (multiple executions within the same request are
// not supported) so child actions are ignored completely.
if (filterContext.IsChildAction || !_isCachingRequest)
{
return;
}
Logger.Debug("Item '{0}' was rendered.", _cacheKey);
if (!ResponseIsCacheable(filterContext))
{
filterContext.HttpContext.Response.Cache.SetCacheability(HttpCacheability.NoCache);
filterContext.HttpContext.Response.Cache.SetNoStore();
filterContext.HttpContext.Response.Cache.SetMaxAge(new TimeSpan(0));
return;
}
// Determine duration and grace time.
var cacheDuration = _cacheRouteConfig != null && _cacheRouteConfig.Duration.HasValue ? _cacheRouteConfig.Duration.Value : CacheSettings.DefaultCacheDuration;
var cacheGraceTime = _cacheRouteConfig != null && _cacheRouteConfig.GraceTime.HasValue ? _cacheRouteConfig.GraceTime.Value : CacheSettings.DefaultCacheGraceTime;
// Include each content item ID as tags for the cache entry.
var contentItemIds = _displayedContentItemHandler.GetDisplayed().Select(x => x.ToString(CultureInfo.InvariantCulture)).ToArray();
// Capture the response output using a custom filter stream.
var response = filterContext.HttpContext.Response;
var captureStream = new CaptureStream(response.Filter);
response.Filter = captureStream;
// Add ETag header for the newly created item
var etag = Guid.NewGuid().ToString("n");
if (HttpRuntime.UsingIntegratedPipeline)
{
if (response.Headers.Get("ETag") == null)
{
response.Headers["ETag"] = etag;
}
}
captureStream.Captured += (output) => {
try {
// Since this is a callback any call to injected dependencies can result in an Autofac exception: "Instances
// cannot be resolved and nested lifetimes cannot be created from this LifetimeScope as it has already been disposed."
// To prevent access to the original lifetime scope a new work context scope should be created here and dependencies
// should be resolved from it.
using (var scope = _workContextAccessor.CreateWorkContextScope()) {
var cacheItem = new CacheItem()
{
CachedOnUtc = _now,
Duration = cacheDuration,
GraceTime = cacheGraceTime,
Output = output,
ContentType = response.ContentType,
QueryString = filterContext.HttpContext.Request.Url.Query,
CacheKey = _cacheKey,
InvariantCacheKey = _invariantCacheKey,
Url = filterContext.HttpContext.Request.Url.AbsolutePath,
Tenant = scope.Resolve <ShellSettings>().Name,
StatusCode = response.StatusCode,
Tags = new[] { _invariantCacheKey }.Union(contentItemIds).ToArray(),
ETag = etag
};
// Write the rendered item to the cache.
var cacheStorageProvider = scope.Resolve <IOutputCacheStorageProvider>();
cacheStorageProvider.Set(_cacheKey, cacheItem);
Logger.Debug("Item '{0}' was written to cache.", _cacheKey);
// Also add the item tags to the tag cache.
var tagCache = scope.Resolve <ITagCache>();
foreach (var tag in cacheItem.Tags)
{
tagCache.Tag(tag, _cacheKey);
}
}
}
finally {
// Always release the cache key lock when the request ends.
ReleaseCacheKeyLock();
}
};
captureHandlerIsAttached = true;
}
finally {
// If the response filter stream capture handler was attached then we'll trust
// it to release the cache key lock at some point in the future when the stream
// is flushed; otherwise we'll make sure we'll release it here.
if (!captureHandlerIsAttached)
{
ReleaseCacheKeyLock();
}
}
}
protected virtual void OnCaptureStream(MemoryStream ms)
{
CaptureStream?.Invoke(ms);
}
public void OnResultExecuted(ResultExecutedContext filterContext)
{
var captureHandlerIsAttached = false;
try {
// This filter is not reentrant (multiple executions within the same request are
// not supported) so child actions are ignored completely.
if (filterContext.IsChildAction || !_isCachingRequest)
{
return;
}
Logger.Debug("Item '{0}' was rendered.", _cacheKey);
// Obtain individual route configuration, if any.
CacheRouteConfig configuration = null;
var configurations = _cacheService.GetRouteConfigs();
if (configurations.Any())
{
var route = filterContext.Controller.ControllerContext.RouteData.Route;
var key = _cacheService.GetRouteDescriptorKey(filterContext.HttpContext, route);
configuration = configurations.FirstOrDefault(c => c.RouteKey == key);
}
if (!ResponseIsCacheable(filterContext, configuration))
{
filterContext.HttpContext.Response.Cache.SetCacheability(HttpCacheability.NoCache);
filterContext.HttpContext.Response.Cache.SetNoStore();
filterContext.HttpContext.Response.Cache.SetMaxAge(new TimeSpan(0));
return;
}
// Determine duration and grace time.
var cacheDuration = configuration != null && configuration.Duration.HasValue ? configuration.Duration.Value : CacheSettings.DefaultCacheDuration;
var cacheGraceTime = configuration != null && configuration.GraceTime.HasValue ? configuration.GraceTime.Value : CacheSettings.DefaultCacheGraceTime;
// Include each content item ID as tags for the cache entry.
var contentItemIds = _displayedContentItemHandler.GetDisplayed().Select(x => x.ToString(CultureInfo.InvariantCulture)).ToArray();
// Capture the response output using a custom filter stream.
var response = filterContext.HttpContext.Response;
var captureStream = new CaptureStream(response.Filter);
response.Filter = captureStream;
captureStream.Captured += (output) => {
try {
var cacheItem = new CacheItem()
{
CachedOnUtc = _now,
Duration = cacheDuration,
GraceTime = cacheGraceTime,
Output = output,
ContentType = response.ContentType,
QueryString = filterContext.HttpContext.Request.Url.Query,
CacheKey = _cacheKey,
InvariantCacheKey = _invariantCacheKey,
Url = filterContext.HttpContext.Request.Url.AbsolutePath,
Tenant = _shellSettings.Name,
StatusCode = response.StatusCode,
Tags = new[] { _invariantCacheKey }.Union(contentItemIds).ToArray()
};
// Write the rendered item to the cache.
_cacheStorageProvider.Remove(_cacheKey);
_cacheStorageProvider.Set(_cacheKey, cacheItem);
Logger.Debug("Item '{0}' was written to cache.", _cacheKey);
// Also add the item tags to the tag cache.
foreach (var tag in cacheItem.Tags)
{
_tagCache.Tag(tag, _cacheKey);
}
}
finally {
// Always release the cache key lock when the request ends.
ReleaseCacheKeyLock();
}
};
captureHandlerIsAttached = true;
}
finally {
// If the response filter stream capture handler was attached then we'll trust
// it to release the cache key lock at some point in the future when the stream
// is flushed; otherwise we'll make sure we'll release it here.
if (!captureHandlerIsAttached)
{
ReleaseCacheKeyLock();
}
}
}
