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mod_security

NAME

mod_security − Security Audit and Trailing Functionality

DESCRIPTION

Security Audit and Trailing Functionality

EXPORTS

block_user(User, Port, Dir, Seconds) -> true | {error, Reason}
block_user(User, Address, Port, Dir, Seconds) -> true | {error, Reason}

Types:

User = string()
Port = integer()
Address = {A,B,C,D} | string() | undefined
Dir = string()
Seconds = integer() | infinity
Reason = no_such_directory

block_user/4 and block_user/5 each blocks the user User from directory Dir for a specified amount of time.

list_auth_users(Port) -> Users | []
list_auth_users(Address, Port) -> Users | []
list_auth_users(Port, Dir) -> Users | []
list_auth_users(Address, Port, Dir) -> Users | []

Types:

Port = integer()
Address = {A,B,C,D} | string() | undefined
Dir = string()
Users = list() = [string()]

list_auth_users/1, list_auth_users/2, and list_auth_users/3 each returns a list of users that are currently authenticated. Authentications are stored for SecurityAuthTimeout seconds, and then discarded.

list_blocked_users(Port) -> Users | []
list_blocked_users(Address, Port) -> Users | []
list_blocked_users(Port, Dir) -> Users | []
list_blocked_users(Address, Port, Dir) -> Users | []

Types:

Port = integer()
Address = {A,B,C,D} | string() | undefined
Dir = string()
Users = list() = [string()]

list_blocked_users/1, list_blocked_users/2, and list_blocked_users/3 each returns a list of users that are currently blocked from access.

unblock_user(User, Port) -> true | {error, Reason}
unblock_user(User, Address, Port) -> true | {error, Reason}
unblock_user(User, Port, Dir) -> true | {error, Reason}
unblock_user(User, Address, Port, Dir) -> true | {error, Reason}

Types:

User = string()
Port = integer()
Address = {A,B,C,D} | string() | undefined
Dir = string()
Reason = term()

unblock_user/2, unblock_user/3, and unblock_user/4 each removes the user User from the list of blocked users for Port (and Dir).

SECURITYCALLBACKMODULE

The SecurityCallbackModule is a user-written module that can receive events from the mod_security Erlang web server API module. This module only exports the functions event/[4,5] which are described here.

EXPORTS

Module:event(What, Port, Dir, Data) -> ignored
Module:event(What, Address, Port, Dir, Data) -> ignored

Types:

What = atom()
Port = integer()
Address = {A,B,C,D} | string() <v>Dir = string()
Data = [Info]
Info = {Name, Value}

event/4 or event/5 is called whenever an event occurs in the mod_security Erlang web server API module. (event/4 is called if Address is undefined, otherwise event/5. Argument What specifies the type of event that has occurred and is one of the following reasons:

auth_fail:

A failed user authentication.

user_block:

A user is being blocked from access.

user_unblock:

A user is being removed from the block list.

Note:

The event user_unblock is not triggered when a user is removed from the block list explicitly using the unblock_user function.

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