1 //
2 // System.Web.Compilation.AppCodeCompiler: A compiler for the App_Code folder
3 //
4 // Authors:
5 //   Marek Habersack (grendello@gmail.com)
6 //
7 // (C) 2006 Marek Habersack
8 //
9 
10 //
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
18 //
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
21 //
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 //
30 
31 using System;
32 using System.Diagnostics;
33 using System.Globalization;
34 using System.IO;
35 
36 namespace System.Web.Util
37 {
38 	internal sealed class FileUtils
39 	{
CreateTempFile(string path)40 		internal delegate object CreateTempFile (string path);
41 
42 		static Random rnd = new Random ();
43 
CreateTemporaryFile(string tempdir, CreateTempFile createFile)44 		internal static object CreateTemporaryFile (string tempdir, CreateTempFile createFile)
45 		{
46 			return CreateTemporaryFile (tempdir, null, null, createFile);
47 		}
48 
CreateTemporaryFile(string tempdir, string extension, CreateTempFile createFile)49 		internal static object CreateTemporaryFile (string tempdir, string extension, CreateTempFile createFile)
50 		{
51 			return CreateTemporaryFile (tempdir, null, extension, createFile);
52 		}
53 
CreateTemporaryFile(string tempdir, string prefix, string extension, CreateTempFile createFile)54 		internal static object CreateTemporaryFile (string tempdir, string prefix, string extension, CreateTempFile createFile)
55 		{
56 			if (tempdir == null || tempdir.Length == 0)
57 				return null;
58 			if (createFile == null)
59 				return null;
60 			string path = null;
61 			object ret = null;
62 			int num;
63 
64 			do {
65 				lock (rnd) {
66 					num = rnd.Next ();
67 				}
68 
69                                 path = Path.Combine (tempdir,
70 						     String.Format ("{0}{1}{2}", (prefix != null) ? prefix + "." : "",
71 								    num.ToString ("x", Helpers.InvariantCulture),
72 								    (extension != null) ? "." + extension : ""));
73 
74                                 try {
75                                         ret = createFile (path);
76                                 } catch (System.IO.IOException) {
77                                 } catch { throw; }
78                         } while (ret == null);
79 
80 			return ret;
81 		}
82 
83 		[Conditional ("DEVEL")]
WriteLineLog(string logFilePath, string format, params object[] parms)84 		public static void WriteLineLog (string logFilePath, string format, params object[] parms)
85 		{
86 			WriteLog (logFilePath, format + Environment.NewLine, parms);
87 		}
88 
89 		[Conditional ("DEVEL")]
WriteLog(string logFilePath, string format, params object[] parms)90 		public static void WriteLog (string logFilePath, string format, params object[] parms)
91 		{
92 			string path = logFilePath != null && logFilePath.Length > 0 ? logFilePath :
93 				Path.Combine (Path.GetTempPath (), "System.Web.log");
94 			using (TextWriter tw = new StreamWriter (path, true)) {
95 				if (parms != null && parms.Length > 0)
96 					tw.Write (format, parms);
97 				else
98 					tw.Write (format);
99 			}
100 		}
101 	}
102 }
103