1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
//
// System.Web.Configuration.AuthorizationConfig
//
// Authors:
// Gonzalo Paniagua Javier (gonzalo@ximian.com)
//
// (C) 2003 Ximian, Inc (http://www.ximian.com)
//
using System;
using System.Collections;
using System.Security.Principal;
using System.Web.UI;
namespace System.Web.Configuration
{
class AuthorizationConfig
{
AuthorizationConfig parent;
ArrayList list;
internal AuthorizationConfig (object parent)
{
this.parent = parent as AuthorizationConfig;
}
static string [] SplitAndTrim (string s)
{
if (s == null || s == "")
return null;
string [] all = s.Split (',');
for (int i = 0; i < all.Length; i++)
all [i] = all [i].Trim ();
return all;
}
static bool CheckWildcards (string [] values)
{
if (values == null)
return true;
foreach (string s in values) {
if (s == null || s.Length == 1)
continue;
if (s.IndexOf ('?') != -1 || s.IndexOf ('*') != -1)
return false;
}
return true;
}
bool Add (bool allow, string users, string roles, string verbs)
{
string [] allUsers = SplitAndTrim (users);
string [] allRoles = SplitAndTrim (roles);
string [] allVerbs = SplitAndTrim (verbs);
if (!CheckWildcards (allUsers) || !CheckWildcards (allRoles))
return false;
if (list == null)
list = new ArrayList ();
list.Add (new UserData (allow, allUsers, allRoles, allVerbs));
return true;
}
internal bool Allow (string users, string roles, string verbs)
{
return Add (true, users, roles, verbs);
}
internal bool Deny (string users, string roles, string verbs)
{
return Add (false, users, roles, verbs);
}
internal bool IsValidUser (IPrincipal user, string verb)
{
if (user == null)
return false;
if (list == null) {
if (parent != null)
return parent.IsValidUser (user, verb);
return true;
}
foreach (UserData data in list) {
if (data.Verbs != null && !data.CheckVerb (verb))
continue;
if ((data.Users !=null && data.CheckUser(user.Identity.Name)) ||
(data.Roles != null && data.CheckRole(user)))
return data.Allow;
}
if (parent != null)
return parent.IsValidUser (user, verb);
return true;
}
struct UserData
{
public bool Allow;
public string [] Users;
public string [] Roles;
public string [] Verbs;
public UserData (bool allow, string [] users, string [] roles, string [] verbs)
{
Allow = allow;
Users = users;
Roles = roles;
Verbs = verbs;
}
public bool CheckUser (string user)
{
foreach (string u in Users) {
if (String.Compare (u, user, true) == 0 ||
u == "*" ||
(u == "?" && user == ""))
return true;
}
return false;
}
public bool CheckRole (IPrincipal user)
{
foreach (string r in Roles) {
if (user.IsInRole (r))
return true;
}
return false;
}
public bool CheckVerb (string verb)
{
foreach (string u in Verbs) {
if (String.Compare (u, verb, true) == 0)
return true;
}
return false;
}
}
}
}
|
