/[svn]/ircd-hybrid-7.2/doc/modeg.txt
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Contents of /ircd-hybrid-7.2/doc/modeg.txt

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Revision 34 - (show annotations)
Sun Oct 2 21:05:51 2005 UTC (14 years ago) by lusky
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create 7.2 branch, we can move/rename it as needed.


1 User Mode +g Documentation
2
3 Hybrid 7 includes a new and power feature that all users can take advantage
4 of to help prevent flooding and unwanted messages. This new feature is
5 invoked by setting user mode +g. When a client is set +g, that user will
6 be in "Caller ID" mode. Any user that messages a +g client will receive
7 a numeric saying that they are in +g (server side ignore) mode. The target
8 client (who is set +g) will also receive a numeric saying that so and so
9 messaged them, and that they are in +g mode.
10
11 The target of the message will only receive one notification per minute, from
12 any client, in order to help prevent flooding. The sender will NOT have the
13 rate limit, and will receive a numeric saying the target is in +g mode every
14 time they send a message. Note that this behavior is similar to the way AWAY
15 messages are done.
16
17 There are numerous benefits for both opers and regular users, including the
18 ability to stop spambot messages from ever reaching your client, stopping
19 private message and CTCP floods, and being able to sit on IRC in privacy.
20
21 There is also a softer variation of +g named +G, which allows people you see
22 on your channels talk to you. In other words, messages from users/spambots
23 sitting on no common channels with you are automagically blocked.
24
25 One question that arises is how to message specific users, while blocking
26 out everyone else. The command ACCEPT is your answer. To add a user to
27 your accept list, issue the raw command ACCEPT <nick>,<nick>,<nick>,...
28
29 You will not receive a reply from the ACCEPT command if it is successful,
30 only if an error has occured. There are three possible errors, shown by
31 numerics:
32
33 ERR_ACCEPTFULL (456): :irc.server 456 client :Accept list is full
34 - This is sent when an accept list is full.
35 ERR_ACCEPTEXIST (457): :irc.server 457 client target :already exists
36 - This is sent when a client tries to add a user to the accept list
37 that already exists there
38 ERR_ACCEPTNOT (458): :irc.server 458 client target :doesn't exist
39 - This is sent when a client tries to remove a user from their accept
40 list who is not on the accept list.
41
42 That user will now be able to send messages to your client until the
43 association is broken.
44
45 Associations break in one of the following situations: when an accepted user
46 QUIT's (or is on the other side of a split), you QUIT, or the accepted user
47 changes their nick. The reason why a remote user's nick change will remove
48 them from your accept list is so that you cannot track a user after they
49 changed their nick.
50
51 Viewing the accept list is also very easy. Issue the raw command ACCEPT *.
52 Removing a user from your accept list is also simple. Issue the command
53 ACCEPT -<nick>.
54
55 Sample Session
56
57 The easiest way to see how this works is by experiencing it. Seeing a sample
58 session can help understand what goes on though.
59
60 Client Hwy-LL is set +g initially.
61 Client Hwy101 wants to message Hwy-LL
62
63 Note that some clients may have to use /quote ACCEPT instead of /accept.
64
65 --
66
67 Client Hwy101: /msg Hwy-LL hi
68 Hwy101 will see: -Hwy-LL- *** I'm in +g mode (server side ignore).
69 -Hwy-LL- *** I've been informed you messaged me.
70
71 Hwy-LL will see: Client Hwy101 [wcampbel@admin.irc.monkie.org] is messaging
72 you and you are +g
73
74 The sender will receive the numeric from the target of the message, while
75 the recipient will receive the numeric from the server.
76
77 --
78
79 If Hwy101 sends another message to Hwy-LL (before the minute expires), he will
80 see: -Hwy-LL- *** I'm in +g mode (server side ignore).
81 and will not receive the second numeric
82
83 Hwy-LL will NOT see any numeric.
84
85 --
86
87 Hwy-LL now wishes to see messages from Hwy101 and SpamBot
88
89 Client Hwy-LL: /accept Hwy101,SpamBot
90
91 Neither side will be told of the change in the accept list, Hwy-LL should
92 presume that the accept was successful if no error occurs.
93
94 Now Hwy-LL can see messages from Hwy101 and SpamBot without any blockage.
95 If Hwy101 was also set +g, then he would have to issue /accept Hwy-LL
96 before he would be able to see messages from Hwy-LL.
97
98 --
99
100 Hwy-LL now wants to see who is on his accept list.
101
102 Client Hwy-LL: /accept *
103
104 Hwy-LL will see:
105 irc.server 281 Hwy-LL Hwy101 SpamBot
106 irc.server 282 Hwy-LL :End of /ACCEPT list
107
108 The replies are in numeric form to help parsing by scripts.
109 --
110
111 Hwy-LL realises he added a spambot to his list, and wants to remove it, and
112 allow messages from services
113
114 Client Hwy-LL: /accept -SpamBot,services
115
116 Hwy-LL will now only accept messages from Hwy101 and services.
117
118 --
119
120 The nicks to be added can be in ANY order, however you cannot add or remove
121 AND list.
122 /ACCEPT x,y,-z,f,-a would be acceptable.
123 /ACCEPT x,y,-z,* would ignore the * and generate an invalid nick
124 response.
125
126 Like Dalnet and Undernet's SILENCE system, the accept list only exists while
127 you are connected to IRC. In order for you to have the same accept list
128 every time you come onto IRC, you must put the accept commands into your
129 client's auto-perform, or manually issue the commands each time.
130
131 This system may seem similar to the SILENCE system, but it is actually a
132 reverse SILENCE. SILENCE ignores certain users and allows the rest. Mode
133 +g ignores all users except certain ones (on your accept list.) Both systems
134 have their place, but the mode +g in Hybrid 7 is what the developers thought
135 would be most useful for clients.
136
137 The goals of this user mode is to provide protection from flooding and
138 spamming, and to provide users with a means to keep their privacy.
139
140 We hope that these goals are obtained.
141
142 --
143 W. Campbell
144 $Id$

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