private static void AddAllAssembliesFromAppDomainBinDirectory(
CompilationConfiguration result, XmlNode child)
{
// Get the path to the bin directory
string binPath = HttpRuntime.BinDirectoryInternal;
FileInfo[] binDlls;
if (!FileUtil.DirectoryExists(binPath))
{
// This is expected to fail if there is no 'bin' dir
Debug.Trace("Template", "Failed to access bin dir \"" + binPath + "\"");
}
else
{
DirectoryInfo binPathDirectory = new DirectoryInfo(binPath);
// Get a list of all the DLL's in the bin directory
binDlls = binPathDirectory.GetFiles("*.dll");
string configFile = ConfigurationException.GetXmlNodeFilename(child);
for (int i = 0; i < binDlls.Length; i++)
{
string assemblyName = Util.GetAssemblyNameFromFileName(binDlls[i].Name);
// Remember the config file location info, in case an error
// occurs later when we try to load the assembly (ASURT 72183)
int configFileLine = ConfigurationException.GetXmlNodeLineNumber(child);
result._assemblies[assemblyName] = new object[]
{ configFile, configFileLine, true /*starDirective*/ };
}
}
}
internal /*public*/ static void BatchCompile(string virtualDir, HttpContext context)
{
string prevConfigPath = context.ConfigPath;
try {
try {
// Set the config path to the virtual path that we're batching
Debug.Trace("Batching", "Setting ConfigPath to " + virtualDir);
context.ConfigPath = virtualDir;
BatchCompileInternal(virtualDir, context);
}
catch (Exception e) {
// Save the exception
_batchErrors[virtualDir] = e;
throw;
}
finally {
// Restore the config path to its previous value
Debug.Trace("Batching", "Restoring ConfigPath to " + prevConfigPath);
context.ConfigPath = prevConfigPath;
}
}
catch { throw; } // Prevent Exception Filter Security Issue (ASURT 122825)
}
private void CreateHost()
{
Debug.Trace("CBM", "CreateHost");
Debug.Assert(_host == null);
Debug.Assert(!_hostCreationPending, "CreateHost: creation already pending");
_hostCreationPending = true;
// Use a local to avoid having a partially created _host
BuildManagerHost host = null;
try {
string appId;
IApplicationHost appHost;
ApplicationManager appManager = ApplicationManager.GetApplicationManager();
host = (BuildManagerHost)appManager.CreateObjectWithDefaultAppHostAndAppId(
_physicalPath, _virtualPath,
typeof(BuildManagerHost), false /*failIfExists*/,
_hostingParameters, out appId, out appHost);
// host appdomain cannot be unloaded during creation.
host.AddPendingCall();
host.Configure(this);
_host = host;
_appId = appId;
_appHost = appHost;
_hostCreationException = _host.InitializationException;
}
catch (Exception e) {
// If an exception happens, keep track of it
_hostCreationException = e;
// Even though the host initialization failed, keep track of it so subsequent
// request will see the error
_host = host;
}
finally {
_hostCreationPending = false;
if (host != null)
{
// Notify the client that the host is ready
if (AppDomainStarted != null)
{
AppDomainStarted(this, EventArgs.Empty);
}
// The host can be unloaded safely now.
host.RemovePendingCall();
}
}
Debug.Trace("CBM", "CreateHost LEAVE");
}
internal static PreservedAssemblyEntry GetPreservedAssemblyEntry(HttpContext context,
string virtualPath, bool fApplicationFile)
{
Debug.Trace("PreservedAssemblyEntry", "Checking for " + virtualPath);
EnsureFirstTimeInit(context);
string baseVirtualDir = UrlPath.GetDirectory(virtualPath);
// No batching for global.asax
if (!fApplicationFile)
{
BatchCompileDirectory(context, baseVirtualDir);
}
PreservedAssemblyEntry entry = new PreservedAssemblyEntry(context,
virtualPath, fApplicationFile);
// Try to load the entry. It must exist, and be up to date
if (!entry.LoadDataFromFile(fApplicationFile))
{
return(null);
}
return(entry);
}
/*
* Delete all temporary files from the codegen directory (e.g. source files, ...)
*/
private static void RemoveOldTempFiles()
{
Debug.Trace("PreservedAssemblyEntry", "Deleting old temporary files from " + HttpRuntime.CodegenDirInternal);
string codegen = HttpRuntime.CodegenDirInternal + "\\";
UnsafeNativeMethods.WIN32_FIND_DATA wfd;
IntPtr hFindFile = UnsafeNativeMethods.FindFirstFile(codegen + "*.*", out wfd);
// No files: do nothing
if (hFindFile == new IntPtr(-1))
{
return;
}
try {
// Go through all the files in the codegen dir. We use the Win32 native API's
// directly for perf and memory usage reason (ASURT 97791)
for (bool more = true; more; more = UnsafeNativeMethods.FindNextFile(hFindFile, out wfd))
{
// Skip directories
if ((wfd.dwFileAttributes & UnsafeNativeMethods.FILE_ATTRIBUTE_DIRECTORY) != 0)
{
continue;
}
// If it has a known extension, skip it
string ext = Path.GetExtension(wfd.cFileName);
if (ext == ".dll" || ext == ".pdb" || ext == ".web" || ext == ".xml")
{
continue;
}
// Don't delete the temp file if it's named after a dll that's still around
// since it could still be useful for debugging.
// Note that we can't use GetFileNameWithoutExtension here because
// some of the files are named 5hvoxl6v.0.cs, and it would return
// 5hvoxl6v.0 instead of just 5hvoxl6v
int periodIndex = wfd.cFileName.IndexOf('.');
if (periodIndex > 0)
{
string baseName = wfd.cFileName.Substring(0, periodIndex);
if (FileUtil.FileExists(codegen + baseName + ".dll"))
{
continue;
}
}
try {
File.Delete(codegen + wfd.cFileName);
}
catch { } // Ignore all exceptions
}
}
finally {
UnsafeNativeMethods.FindClose(hFindFile);
}
}
public IDictionary GetBrowserDefinitions()
{
Debug.Trace("CBM", "GetBrowserDefinitions");
EnsureHostCreated();
return(_host.GetBrowserDefinitions());
}
/*
* Returns an array of the virtual paths to all the code directories in the app thru the hosted appdomain
*/
public string[] GetVirtualCodeDirectories()
{
Debug.Trace("CBM", "GetHostedVirtualCodeDirectories");
EnsureHostCreated();
return(_host.GetVirtualCodeDirectories());
}
/*
* Makes sure that all the top level files are compiled (code, global.asax, ...)
*/
public void CompileApplicationDependencies()
{
Debug.Trace("CBM", "CompileApplicationDependencies");
EnsureHostCreated();
_host.CompileApplicationDependencies();
}
private static void BatchCompileInternal(string virtualDir, HttpContext context)
{
string directory = context.Request.MapPath(virtualDir);
// Prescan all files in the current directory to see inter-file dependencies
DirectoryInfo filesDirectory = new DirectoryInfo(directory);
BatchTemplateParser btp = new BatchTemplateParser(context);
AddFileSet(virtualDir, filesDirectory, "*.aspx", btp);
AddFileSet(virtualDir, filesDirectory, "*.ascx", btp);
// Based on dependencies, split into phases
SourceReference[][] sources = BatchDependencyWalker.Split(btp.GetSourceReferences());
btp = null;
// Tell the server that we're still running to make sure it doesn't kill us (ASURT 96452)
context.SendEmptyResponse();
#if DBG
for (int i = 0; i < sources.Length; i++)
{
SourceReference[] bucket = sources[i];
Debug.Trace("Batching", "");
Debug.Trace("Batching", "Bucket " + i + " contains " + bucket.Length + " files");
for (int j = 0; j < bucket.Length; j++)
{
Debug.Trace("Batching", bucket[j].Filename);
}
}
#endif
// Batch compile each phase separately
for (int i = 0; i < sources.Length; i++)
{
SourceReference[] batch = sources[i];
ArrayList list = new ArrayList();
// cons up the TemplateParserParameters
for (int j = 0; j < batch.Length; j++)
{
string filename = batch[j].Filename;
string virtualPath = UrlPath.Combine(virtualDir,
Path.GetFileName(filename));
list.Add(new BatchCompilationEntry(virtualPath, filename, context));
}
// Now batch compile them
if (list.Count > 0)
{
BatchCompile(list, context, virtualDir);
}
}
}
/*
* Returns the codedom tree and the compiler type/param for a given file.
*/
public CodeCompileUnit GenerateCodeCompileUnit(
string virtualPath, out Type codeDomProviderType,
out CompilerParameters compilerParameters, out IDictionary linePragmasTable)
{
Debug.Trace("CBM", "GenerateCodeCompileUnit " + virtualPath);
return(GenerateCodeCompileUnit(virtualPath, null,
out codeDomProviderType, out compilerParameters, out linePragmasTable));
}
public virtual IHttpHandler GetHandler(HttpContext context, string requestType, string virtualPath, string path)
{
Debug.Trace("PageHandlerFactory", "PageHandlerFactory: " + virtualPath);
// This should never get called in ISAPI mode but currently is in integrated mode
// Debug.Assert(false);
return(GetHandlerHelper(context, requestType, VirtualPath.CreateNonRelative(virtualPath), path));
}
static bool GetSiteNameFromISAPI()
{
Debug.Trace("config_loc", "GetSiteNameFromISAPI()");
HttpContext context = HttpContext.Current;
if (context != null)
{
string metabaseAppKey = context.Request.ServerVariables["INSTANCE_META_PATH"];
const string KEY_LMW3SVC = "/LM/W3SVC/";
Debug.Assert(metabaseAppKey.StartsWith(KEY_LMW3SVC));
string appNumber = metabaseAppKey.Substring(KEY_LMW3SVC.Length - 1);
//string appServerComment = "/" + appNumber + "/ServerComment";
Debug.Trace("config_loc", "appNumber:" + appNumber + " INSTANCE_META_PATH:" + metabaseAppKey);
UnicodeEncoding encoding = new UnicodeEncoding();
// null-terminate appNumber and convert to byte array
byte [] byteAppNumber = encoding.GetBytes(appNumber + "\0");
int retVal = 2;
byte [] outBytes = new byte[64];
while (retVal == 2)
{
retVal = context.CallISAPI(UnsafeNativeMethods.CallISAPIFunc.GetSiteServerComment,
byteAppNumber, outBytes);
if (retVal == 2)
{
if (outBytes.Length > 1024) // should never happen
{
throw new ConfigurationException(HttpRuntime.FormatResourceString(
SR.Config_site_name_too_long,
metabaseAppKey));
}
outBytes = new byte[outBytes.Length * 2];
}
}
// find WCHAR null terminator in byte array
int i = 0;
while (i + 1 < outBytes.Length && (outBytes[i] != 0 || outBytes[i + 1] != 0))
{
i += 2;
}
// decode up to null terminator
s_siteName = encoding.GetString(outBytes, 0, i);
Debug.Trace("config_loc", "i: " + i + " site name:" + s_siteName);
return(true);
}
else
{
Debug.Trace("config_loc", "could not query site name. No Context.");
}
return(false); // keep trying to evaluate
}
private void OnAppDomainUnloadedCallback(Object unused)
{
Debug.Trace("CBM", "OnAppDomainUnloadedCallback");
// Notify the client that the appdomain is unloaded
if (AppDomainUnloaded != null)
{
AppDomainUnloaded(this, new BuildManagerHostUnloadEventArgs(_reason));
}
}
// Called by BuildManagerHost when the ASP appdomain is unloaded
internal void OnAppDomainUnloaded(ApplicationShutdownReason reason)
{
Debug.Trace("CBM", "OnAppDomainUnloaded " + reason.ToString());
_reason = reason;
_waitForCallBack = false;
// Don't do anything that can be slow here. Instead queue in a worker thread
ThreadPool.QueueUserWorkItem(_onAppDomainUnloadedCallback);
}
protected void AddDependency(VirtualPath virtualPath)
{
virtualPath = ResolveVirtualPath(virtualPath);
Debug.Trace("Template", "Parsed dependency: " + _virtualPath + " depends on " + virtualPath);
if (_virtualPathDependencies == null)
{
_virtualPathDependencies = new CaseInsensitiveStringSet();
}
_virtualPathDependencies.Add(virtualPath.VirtualPathString);
}
/*
* Returns an array of the assemblies defined in the bin and assembly reference config section
*/
public String[] GetTopLevelAssemblyReferences(string virtualPath)
{
Debug.Trace("CBM", "GetHostedVirtualCodeDirectories");
if (virtualPath == null)
{
throw new ArgumentNullException("virtualPath");
}
EnsureHostCreated();
return(_host.GetTopLevelAssemblyReferences(VirtualPath.Create(virtualPath)));
}
/*
* Returns the virtual path of the corresponding generated file.
* Note the filepath needs to be a full path.
*/
public string GetGeneratedFileVirtualPath(string filePath)
{
Debug.Trace("CBM", "GetGeneratedFileVirtualPath " + filePath);
if (filePath == null)
{
throw new ArgumentNullException("filePath");
}
EnsureHostCreated();
return(_host.GetGeneratedFileVirtualPath(filePath));
}
/*
* Returns the physical path of the generated file corresponding to the virtual directory.
* Note the virtualPath needs to use this format:
* "/[appname]/App_WebReferences/{[subDir]/}"
*/
public string GetGeneratedSourceFile(string virtualPath)
{
Debug.Trace("CBM", "GetGeneratedSourceFile " + virtualPath);
if (virtualPath == null)
{
throw new ArgumentNullException("virtualPath");
}
EnsureHostCreated();
return(_host.GetGeneratedSourceFile(VirtualPath.CreateTrailingSlash(virtualPath)));
}
public bool Unload()
{
Debug.Trace("CBM", "Unload");
BuildManagerHost host = _host;
if (host != null)
{
_host = null;
return(host.UnloadAppDomain());
}
return(false);
}
public string GenerateCode(
string virtualPath, String virtualFileString, out IDictionary linePragmasTable)
{
Debug.Trace("CBM", "GenerateCode " + virtualPath);
if (virtualPath == null)
{
throw new ArgumentNullException("virtualPath");
}
EnsureHostCreated();
return(_host.GenerateCode(VirtualPath.Create(virtualPath), virtualFileString, out linePragmasTable));
}
/*
* Look for a type by name in the assemblies available to this page
*/
private Type GetType(string typeName)
{
// If it contains an assembly name, just call Type.GetType (ASURT 53589)
if (Util.TypeNameIncludesAssembly(typeName))
{
Type t;
try {
t = Type.GetType(typeName, true);
}
catch (Exception e) {
throw new HttpParseException(null, e, _inputFile, _sourceString, _lineNumber);
}
return(t);
}
if (_linkedAssemblies == null)
{
return(null);
}
IDictionaryEnumerator en = _linkedAssemblies.GetEnumerator();
for (int i = 0; en.MoveNext(); i++)
{
Assembly a = (Assembly)en.Key;
Type t = a.GetType(typeName);
#if DBG
if (t == null)
{
Debug.Trace("SimpleWebHandlerParser_GetType", "Failed to find type '" + typeName + "' in assembly " + a.GetName().FullName);
}
else
{
Debug.Trace("SimpleWebHandlerParser_GetType", "Successfully found type '" + typeName + "' in assembly " + a.GetName().FullName);
}
#endif
if (t != null)
{
return(t);
}
}
throw new HttpParseException(
HttpRuntime.FormatResourceString(SR.Could_not_create_type, typeName),
null, _inputFile, _sourceString, _lineNumber);
}
private Assembly ResolveAssembly(object sender, ResolveEventArgs e)
{
Debug.Trace("BuildManagerHost", "ResolveAssembly '" + e.Name + "'");
if (_assemblyCollection == null)
return null;
String assemblyLocation = (String)_assemblyCollection[e.Name];
if (assemblyLocation == null)
return null;
Debug.Trace("BuildManagerHost", "ResolveAssembly: found");
return Assembly.LoadFrom(assemblyLocation);
}
/*
* Returns the compiler type and parameters that need to be used to build
* a given file.
*/
public void GetCompilerParameters(string virtualPath,
out Type codeDomProviderType, out CompilerParameters compilerParameters)
{
Debug.Trace("CBM", "GetCompilerParameters " + virtualPath);
if (virtualPath == null)
{
throw new ArgumentNullException("virtualPath");
}
EnsureHostCreated();
_host.GetCompilerParams(VirtualPath.Create(virtualPath), out codeDomProviderType, out compilerParameters);
}
internal void RegisterAssembly(String assemblyName, String assemblyLocation)
{
Debug.Trace("BuildManagerHost", "RegisterAssembly '" + assemblyName + "','" + assemblyLocation + "'");
if (_assemblyCollection == null) {
lock (_lock) {
if (_assemblyCollection == null) {
_assemblyCollection = Hashtable.Synchronized(new Hashtable());
}
}
}
AssemblyName asmName = new AssemblyName(assemblyName);
_assemblyCollection[asmName.FullName] = assemblyLocation;
}
internal void AddFile(string fileName)
{
Debug.Trace("DateTimeCombiner", "AddFile: " + fileName);
if (!FileUtil.FileExists(fileName))
{
Debug.Trace("DateTimeCombiner", "Could not find target " + fileName);
return;
}
FileInfo file = new FileInfo(fileName);
AddDateTime(file.CreationTime);
AddDateTime(file.LastWriteTime);
AddFileSize(file.Length);
}
internal static void AbortBackgroundBatchCompilations()
{
Debug.Trace("PreservedAssemblyEntry", "AbortBackgroundBatchCompilations: " + _backgroundBatchCompilations.Count + " threads to abort");
// drain the preservation and compilation mutexes to make sure they are not owned while
// the threads are aborted
_mutex.DrainMutex();
CompilationLock.DrainMutex();
lock (_backgroundBatchCompilations) {
foreach (BackgroundBatchCompiler bbc in _backgroundBatchCompilations)
{
bbc.Abort();
}
}
}
internal void Initialize(VirtualPath virtualPath, string physicalPath)
{
Debug.Trace("CBM", "Initialize");
_virtualPath = virtualPath;
_physicalPath = FileUtil.FixUpPhysicalDirectory(physicalPath);
_onAppDomainUnloadedCallback = new WaitCallback(OnAppDomainUnloadedCallback);
_onAppDomainShutdown = new WaitCallback(OnAppDomainShutdownCallback);
_installPath = RuntimeEnvironment.GetRuntimeDirectory();
// Do not create host during intialization. It will be done on demand.
//CreateHost();
}
public CodeCompileUnit GenerateCodeCompileUnit(
string virtualPath, String virtualFileString, out Type codeDomProviderType,
out CompilerParameters compilerParameters, out IDictionary linePragmasTable)
{
Debug.Trace("CBM", "GenerateCodeCompileUnit " + virtualPath);
if (virtualPath == null)
{
throw new ArgumentNullException("virtualPath");
}
EnsureHostCreated();
return(_host.GenerateCodeCompileUnit(VirtualPath.Create(virtualPath), virtualFileString,
out codeDomProviderType, out compilerParameters, out linePragmasTable));
}
private void CacheEntryToMemory(SourceCompilerCachedEntry scce)
{
Debug.Assert(_utcStart != DateTime.MinValue);
// Always add the main compiled file itself as a source dependency
AddSourceDependency(_physicalPath);
// Get an array of source file dependencies
string[] sourceDependencies = Util.StringArrayFromHashtable(_sourceDependencies);
_cache.UtcInsert(_cacheKey, scce, new CacheDependency(false, sourceDependencies, _utcStart),
Cache.NoAbsoluteExpiration, Cache.NoSlidingExpiration,
CacheItemPriority.NotRemovable, null);
Debug.Trace("Template", "Caching source code (" + _virtualPath + "," + scce._assembly.GetName().Name + ")");
}
// look up item in cache (case-insensitive)
internal static HttpConfigurationRecord CacheLookup(string vpath)
{
string cachekey = CacheKey(vpath);
HttpConfigurationRecord record = (HttpConfigurationRecord)HttpRuntime.CacheInternal.Get(cachekey);
Debug.Trace("config_verbose", "Cache " +
((record == null) ? "miss" : "hit") + " on \"" + cachekey + "\"");
if (record != null)
{
record.CheckCachedException();
}
return(record);
}
