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authorJohn Hurliman2010-03-03 14:38:00 -0800
committerJohn Hurliman2010-03-03 14:38:00 -0800
commit61a63ff85124d932cca5a2aeba9ae685fa7f146f (patch)
treeae5337063e486e32131a188c3d6b50b4695b1f09 /OpenSim/Framework/MultipartForm.cs
parent* Adjusted the significant movement magic value from 0.5m to 2.0m and added a... (diff)
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* Added three new helper utility files to OpenSim.Framework. MultipartForm is used for constructing multipart/form-data requests. UntrustedWebRequest places sanity checks and policy on requests to HTTP endpoints that are not in the same trust domain (useful for Hypergrid, OpenID, etc). WebUtil contains misc. functions for managing URLs and network streams
Diffstat (limited to 'OpenSim/Framework/MultipartForm.cs')
-rw-r--r--OpenSim/Framework/MultipartForm.cs117
1 files changed, 117 insertions, 0 deletions
diff --git a/OpenSim/Framework/MultipartForm.cs b/OpenSim/Framework/MultipartForm.cs
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1using System;
2using System.Collections.Generic;
3using System.Net;
4using System.IO;
5using System.Text;
6
7namespace OpenSim.Framework
8{
9 public static class MultipartForm
10 {
11 #region Helper Classes
12
13 public abstract class Element
14 {
15 public string Name;
16 }
17
18 public class File : Element
19 {
20 public string Filename;
21 public string ContentType;
22 public byte[] Data;
23
24 public File(string name, string filename, string contentType, byte[] data)
25 {
26 Name = name;
27 Filename = filename;
28 ContentType = contentType;
29 Data = data;
30 }
31 }
32
33 public class Parameter : Element
34 {
35 public string Value;
36
37 public Parameter(string name, string value)
38 {
39 Name = name;
40 Value = value;
41 }
42 }
43
44 #endregion Helper Classes
45
46 public static HttpWebResponse Post(HttpWebRequest request, List<Element> postParameters)
47 {
48 string boundary = Boundary();
49
50 // Set up the request properties
51 request.Method = "POST";
52 request.ContentType = "multipart/form-data; boundary=" + boundary;
53
54 #region Stream Writing
55
56 using (MemoryStream formDataStream = new MemoryStream())
57 {
58 foreach (var param in postParameters)
59 {
60 if (param is File)
61 {
62 File file = (File)param;
63
64 // Add just the first part of this param, since we will write the file data directly to the Stream
65 string header = string.Format("--{0}\r\nContent-Disposition: form-data; name=\"{1}\"; filename=\"{2}\";\r\nContent-Type: {3}\r\n\r\n",
66 boundary,
67 file.Name,
68 !String.IsNullOrEmpty(file.Filename) ? file.Filename : "tempfile",
69 file.ContentType);
70
71 formDataStream.Write(Encoding.UTF8.GetBytes(header), 0, header.Length);
72 formDataStream.Write(file.Data, 0, file.Data.Length);
73 }
74 else
75 {
76 Parameter parameter = (Parameter)param;
77
78 string postData = string.Format("--{0}\r\nContent-Disposition: form-data; name=\"{1}\"\r\n\r\n{2}\r\n",
79 boundary,
80 parameter.Name,
81 parameter.Value);
82 formDataStream.Write(Encoding.UTF8.GetBytes(postData), 0, postData.Length);
83 }
84 }
85
86 // Add the end of the request
87 byte[] footer = Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n");
88 formDataStream.Write(footer, 0, footer.Length);
89
90 request.ContentLength = formDataStream.Length;
91
92 // Copy the temporary stream to the network stream
93 formDataStream.Seek(0, SeekOrigin.Begin);
94 using (Stream requestStream = request.GetRequestStream())
95 formDataStream.CopyTo(requestStream, (int)formDataStream.Length);
96 }
97
98 #endregion Stream Writing
99
100 return request.GetResponse() as HttpWebResponse;
101 }
102
103 private static string Boundary()
104 {
105 Random rnd = new Random();
106 string formDataBoundary = String.Empty;
107
108 while (formDataBoundary.Length < 15)
109 formDataBoundary = formDataBoundary + rnd.Next();
110
111 formDataBoundary = formDataBoundary.Substring(0, 15);
112 formDataBoundary = "-----------------------------" + formDataBoundary;
113
114 return formDataBoundary;
115 }
116 }
117}