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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta name="generator" content="HTML Tidy, see www.w3.org" />
<title>Apache module mod_auth_anon.c</title>
</head>
<!-- Background white, links blue (unvisited), navy (visited), red (active) -->
<body bgcolor="#FFFFFF" text="#000000" link="#0000FF"
vlink="#000080" alink="#FF0000">
<!--#include virtual="header.html" -->
<h1 align="CENTER">Module mod_auth_anon</h1>
This module allows "anonymous" user access to authenticated
areas.
<p><a href="module-dict.html#Status"
rel="Help"><strong>Status:</strong></a> Extension<br />
<a href="module-dict.html#SourceFile"
rel="Help"><strong>Source File:</strong></a>
mod_auth_anon.c<br />
<a href="module-dict.html#ModuleIdentifier"
rel="Help"><strong>Module Identifier:</strong></a>
anon_auth_module<br />
<a href="module-dict.html#Compatibility"
rel="Help"><strong>Compatibility:</strong></a> Available in
Apache 1.1 and later.</p>
<h2>Summary</h2>
<p>This module does access control in a manner similar to
anonymous-ftp sites; <em>i.e.</em> have a 'magic' user id
'anonymous' and the email address as a password. These email
addresses can be logged.</p>
<p>Combined with other (database) access control methods, this
allows for effective user tracking and customization according
to a user profile while still keeping the site open for
'unregistered' users. One advantage of using Auth-based user
tracking is that, unlike magic-cookies and funny URL
pre/postfixes, it is completely browser independent and it
allows users to share URLs.</p>
<h2><a id="Directives" name="Directives">Directives</a></h2>
<ul>
<li><a href="#anonymous">Anonymous</a></li>
<li><a href="#Authoritative">Anonymous_Authoritative</a></li>
<li><a href="#LogEmail">Anonymous_LogEmail</a></li>
<li><a href="#MustGiveEmail">Anonymous_MustGiveEmail</a></li>
<li><a href="#NoUserID">Anonymous_NoUserID</a></li>
<li><a href="#VerifyEmail">Anonymous_VerifyEmail</a></li>
</ul>
<h2><a id="Example" name="Example">Example</a></h2>
The example below (when combined with the Auth directives of a
htpasswd-file based (or GDM, mSQL <em>etc.</em>) base access
control system allows users in as 'guests' with the following
properties:
<ul>
<li>It insists that the user enters a userId.
(<code>Anonymous_NoUserId</code>)</li>
<li>It insists that the user enters a password.
(<code>Anonymous_MustGiveEmail</code>)</li>
<li>The password entered must be a valid email address, ie.
contain at least one '@' and a '.'.
(<code>Anonymous_VerifyEmail</code>)</li>
<li>The userID must be one of <code>anonymous guest www test
welcome</code> and comparison is <strong>not</strong> case
sensitive.</li>
<li>And the Email addresses entered in the passwd field are
logged to the error log file
(<code>Anonymous_LogEmail</code>)</li>
</ul>
<p>Excerpt of httpd.conf:</p>
<blockquote>
<pre>
Anonymous_NoUserId off
Anonymous_MustGiveEmail on
Anonymous_VerifyEmail on
Anonymous_LogEmail on
Anonymous anonymous guest www test welcome
AuthName "Use 'anonymous' & Email address for guest entry"
AuthType basic
# An AuthUserFile/AuthDBUserFile/AuthDBMUserFile
# directive must be specified, or use
# Anonymous_Authoritative for public access.
# In the .htaccess for the public directory, add:
<Files *>
Order Deny,Allow
Allow from all
Require valid-user
</Files>
</pre>
</blockquote>
<hr />
<h2><a id="anonymous" name="anonymous">Anonymous
directive</a></h2>
<a href="directive-dict.html#Syntax"
rel="Help"><strong>Syntax:</strong></a> Anonymous <em>user</em>
[<em>user</em>] ...<br />
<a href="directive-dict.html#Default"
rel="Help"><strong>Default:</strong></a> none<br />
<a href="directive-dict.html#Context"
rel="Help"><strong>Context:</strong></a> directory,
.htaccess<br />
<a href="directive-dict.html#Override"
rel="Help"><strong>Override:</strong></a> AuthConfig<br />
<a href="directive-dict.html#Status"
rel="Help"><strong>Status:</strong></a> Extension<br />
<a href="directive-dict.html#Module"
rel="Help"><strong>Module:</strong></a> mod_auth_anon
<p>A list of one or more 'magic' userIDs which are allowed
access without password verification. The userIDs are space
separated. It is possible to use the ' and " quotes to allow a
space in a userID as well as the \ escape character.</p>
<p>Please note that the comparison is
<strong>case-IN-sensitive</strong>.<br />
I strongly suggest that the magic username
'<code>anonymous</code>' is always one of the allowed
userIDs.</p>
<p>Example:<br />
<code>Anonymous anonymous "Not Registered" 'I don\'t
know'</code></p>
<p>This would allow the user to enter without password
verification by using the userId's 'anonymous',
'AnonyMous','Not Registered' and 'I Don't Know'.</p>
<hr />
<h2><a id="Authoritative"
name="Authoritative">Anonymous_Authoritative directive</a></h2>
<a href="directive-dict.html#Syntax"
rel="Help"><strong>Syntax:</strong></a> Anonymous_Authoritative
on|off<br />
<a href="directive-dict.html#Default"
rel="Help"><strong>Default:</strong></a>
<code>Anonymous_Authoritative off</code><br />
<a href="directive-dict.html#Context"
rel="Help"><strong>Context:</strong></a> directory,
.htaccess<br />
<a href="directive-dict.html#Override"
rel="Help"><strong>Override:</strong></a> AuthConfig<br />
<a href="directive-dict.html#Status"
rel="Help"><strong>Status:</strong></a> Extension<br />
<a href="directive-dict.html#Module"
rel="Help"><strong>Module:</strong></a> mod_auth_anon
<p>When set 'on', there is no fall-through to other
authorization methods. So if a userID does not match the values
specified in the <code>Anonymous</code> directive, access is
denied.</p>
<p>Be sure you know what you are doing when you decide to
switch it on. And remember that it is the linking order of the
modules (in the Configuration / Make file) which details the
order in which the Authorization modules are queried.</p>
<hr />
<h2><a id="LogEmail" name="LogEmail">Anonymous_LogEmail
directive</a></h2>
<a href="directive-dict.html#Syntax"
rel="Help"><strong>Syntax:</strong></a> Anonymous_LogEmail
on|off<br />
<a href="directive-dict.html#Default"
rel="Help"><strong>Default:</strong></a>
<code>Anonymous_LogEmail on</code><br />
<a href="directive-dict.html#Context"
rel="Help"><strong>Context:</strong></a> directory,
.htaccess<br />
<a href="directive-dict.html#Override"
rel="Help"><strong>Override:</strong></a> AuthConfig<br />
<a href="directive-dict.html#Status"
rel="Help"><strong>Status:</strong></a> Extension<br />
<a href="directive-dict.html#Module"
rel="Help"><strong>Module:</strong></a> mod_auth_anon
<p>When set 'on', the default, the 'password' entered (which
hopefully contains a sensible email address) is logged in the
error log. The message is logged at a level of <code>info</code>,
and so you must have <a href="core.html#loglevel">LogLevel</a> set
to at least <code>info</code> in order to see this message.</p>
<p>Log entries will look like the following example:</p>
<pre>
[Fri Apr 26 14:49:50 2002] [info] [client 192.168.1.105] Anonymous: Passwd <user@example.com> Accepted
</pre>
<hr />
<h2><a id="MustGiveEmail"
name="MustGiveEmail">Anonymous_MustGiveEmail directive</a></h2>
<a href="directive-dict.html#Syntax"
rel="Help"><strong>Syntax:</strong></a> Anonymous_MustGiveEmail
on|off<br />
<a href="directive-dict.html#Default"
rel="Help"><strong>Default:</strong></a>
<code>Anonymous_MustGiveEmail on</code><br />
<a href="directive-dict.html#Context"
rel="Help"><strong>Context:</strong></a> directory,
.htaccess<br />
<a href="directive-dict.html#Override"
rel="Help"><strong>Override:</strong></a> AuthConfig<br />
<a href="directive-dict.html#Status"
rel="Help"><strong>Status:</strong></a> Extension<br />
<a href="directive-dict.html#Module"
rel="Help"><strong>Module:</strong></a> mod_auth_anon
<p>Specifies whether the user must specify an email address as
the password. This prohibits blank passwords.</p>
<hr />
<h2><a id="NoUserID" name="NoUserID">Anonymous_NoUserID
directive</a></h2>
<a href="directive-dict.html#Syntax"
rel="Help"><strong>Syntax:</strong></a> Anonymous_NoUserID
on|off<br />
<a href="directive-dict.html#Default"
rel="Help"><strong>Default:</strong></a>
<code>Anonymous_NoUserID off</code><br />
<a href="directive-dict.html#Context"
rel="Help"><strong>Context:</strong></a> directory,
.htaccess<br />
<a href="directive-dict.html#Override"
rel="Help"><strong>Override:</strong></a> AuthConfig<br />
<a href="directive-dict.html#Status"
rel="Help"><strong>Status:</strong></a> Extension<br />
<a href="directive-dict.html#Module"
rel="Help"><strong>Module:</strong></a> mod_auth_anon
<p>When set 'on', users can leave the userID (and perhaps the
password field) empty. This can be very convenient for
MS-Explorer users who can just hit return or click directly on
the OK button; which seems a natural reaction.</p>
<hr />
<h2><a id="VerifyEmail"
name="VerifyEmail">Anonymous_VerifyEmail directive</a></h2>
<a href="directive-dict.html#Syntax"
rel="Help"><strong>Syntax:</strong></a> Anonymous_VerifyEmail
on|off<br />
<a href="directive-dict.html#Default"
rel="Help"><strong>Default:</strong></a>
<code>Anonymous_VerifyEmail off</code><br />
<a href="directive-dict.html#Context"
rel="Help"><strong>Context:</strong></a> directory,
.htaccess<br />
<a href="directive-dict.html#Override"
rel="Help"><strong>Override:</strong></a> AuthConfig<br />
<a href="directive-dict.html#Status"
rel="Help"><strong>Status:</strong></a> Extension<br />
<a href="directive-dict.html#Module"
rel="Help"><strong>Module:</strong></a> mod_auth_anon
<p>When set 'on' the 'password' entered is checked for at least
one '@' and a '.' to encourage users to enter valid email
addresses (see the above <code>Auth_LogEmail</code>).
<!--#include virtual="footer.html" -->
</p>
</body>
</html>
|
