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NAME

       mod_auth - User authentication using text files, Dets, or Mnesia database.

DESCRIPTION

       This module provides for basic user authentication using textual files, Dets databases, or
       Mnesia databases.

EXPORTS

       add_group_member(GroupName, UserName, Options) -> true | {error, Reason}
       add_group_member(GroupName, UserName, Port, Dir) -> true | {error, Reason}
       add_group_member(GroupName, UserName, Address, Port, Dir) -> true | {error, Reason}

              Types:

                 GroupName = string()
                 UserName = string()
                 Options = [Option]
                 Option    =    {port,Port}    |    {addr,Address}    |     {dir,Directory}     |
                 {authPassword,AuthPassword}
                 Port = integer()
                 Address = {A,B,C,D} | string() | undefined
                 Dir = string()
                 AuthPassword = string()
                 Reason = term()

              add_group_member/3,  add_group_member/4, and add_group_member/5 each adds a user to
              a group. If the group does not exist, it is created and the user is  added  to  the
              group.    Upon   successful   operation,   this   function   returns   true.   When
              add_group_members/3 is called, options Port and Dir are mandatory.

       add_user(UserName, Options) -> true| {error, Reason}
       add_user(UserName, Password, UserData, Port, Dir) -> true | {error, Reason}
       add_user(UserName, Password, UserData, Address, Port, Dir) -> true | {error, Reason}

              Types:

                 UserName = string()
                 Options = [Option]
                 Option   =   {password,Password}   |   {userData,UserData}   |   {port,Port}   |
                 {addr,Address} | {dir,Directory} | {authPassword,AuthPassword}
                 Password = string()
                 UserData = term()
                 Port = integer()
                 Address = {A,B,C,D} | string() | undefined
                 Dir = string()
                 AuthPassword =string()
                 Reason = term()

              add_user/2,  add_user/5,  and  add_user/6 each adds a user to the user database. If
              the operation is successful, this  function  returns  true.  If  an  error  occurs,
              {error,Reason}  is returned. When add_user/2 is called, options Password, UserData,
              Port, and Dir are mandatory.

       delete_group(GroupName, Options) -> true  |  {error,Reason}  <name>delete_group(GroupName,
       Port, Dir) -> true | {error, Reason}
       delete_group(GroupName, Address, Port, Dir) -> true | {error, Reason}

              Types:

                 Options = [Option]
                 Option     =     {port,Port}    |    {addr,Address}    |    {dir,Directory}    |
                 {authPassword,AuthPassword}
                 Port = integer()
                 Address = {A,B,C,D} | string() | undefined
                 Dir = string()
                 GroupName = string()
                 AuthPassword = string()
                 Reason = term()

              delete_group/2, delete_group/3, and delete_group/4 each deletes the group specified
              and  returns  true.  If  there  is  an  error,  {error,  Reason}  is returned. When
              delete_group/2 is called, option Port and Dir are mandatory.

       delete_group_member(GroupName, UserName, Options) -> true | {error, Reason}
       delete_group_member(GroupName, UserName, Port, Dir) -> true | {error, Reason}
       delete_group_member(GroupName, UserName, Address, Port, Dir) -> true | {error, Reason}

              Types:

                 GroupName = string()
                 UserName = string()
                 Options = [Option]
                 Option    =    {port,Port}    |    {addr,Address}    |     {dir,Directory}     |
                 {authPassword,AuthPassword}
                 Port = integer()
                 Address = {A,B,C,D} | string() | undefined
                 Dir = string()
                 AuthPassword = string()
                 Reason = term()

              delete_group_member/3,   delete_group_member/4,   and   delete_group_member/5  each
              deletes a user from a group. If the group or the user does not exist, this function
              returns an error, otherwise true. When delete_group_member/3 is called, the options
              Port and Dir are mandatory.

       delete_user(UserName,Options) -> true | {error, Reason}
       delete_user(UserName, Port, Dir) -> true | {error, Reason}
       delete_user(UserName, Address, Port, Dir) -> true | {error, Reason}

              Types:

                 UserName = string()
                 Options = [Option]
                 Option    =    {port,Port}    |    {addr,Address}    |     {dir,Directory}     |
                 {authPassword,AuthPassword}
                 Port = integer()
                 Address = {A,B,C,D} | string() | undefined
                 Dir = string()
                 AuthPassword = string()
                 Reason = term()

              delete_user/2,  delete_user/3,  and delete_user/4 each deletes a user from the user
              database. If the operation is successful, this function returns true. If  an  error
              occurs,  {error,Reason} is returned. When delete_user/2 is called, options Port and
              Dir are mandatory.

       get_user(UserName,Options) -> {ok, #httpd_user} |{error, Reason}
       get_user(UserName, Port, Dir) -> {ok, #httpd_user} | {error, Reason}
       get_user(UserName, Address, Port, Dir) -> {ok, #httpd_user} | {error, Reason}

              Types:

                 UserName = string()
                 Options = [Option]
                 Option    =    {port,Port}    |    {addr,Address}    |     {dir,Directory}     |
                 {authPassword,AuthPassword}
                 Port = integer()
                 Address = {A,B,C,D} | string() | undefined
                 Dir = string()
                 AuthPassword = string()
                 Reason = term()

              get_user/2, get_user/3, and get_user/4 each returns an httpd_user record containing
              the userdata for a specific user. If the user cannot be found, {error,  Reason}  is
              returned. When get_user/2 is called, options Port and Dir are mandatory.

       list_groups(Options) -> {ok, Groups} | {error, Reason}
       list_groups(Port, Dir) -> {ok, Groups} | {error, Reason}
       list_groups(Address, Port, Dir) -> {ok, Groups} | {error, Reason}

              Types:

                 Options = [Option]
                 Option     =     {port,Port}    |    {addr,Address}    |    {dir,Directory}    |
                 {authPassword,AuthPassword}
                 Port = integer()
                 Address = {A,B,C,D} | string() | undefined
                 Dir = string()
                 Groups = list()
                 AuthPassword = string()
                 Reason = term()

              list_groups/1,  list_groups/2,  and  list_groups/3  each  lists  all   the   groups
              available. If there is an error, {error, Reason} is returned. When list_groups/1 is
              called, options Port and Dir are mandatory.

       list_group_members(GroupName, Options) -> {ok, Users} | {error, Reason}
       list_group_members(GroupName, Port, Dir) -> {ok, Users} | {error, Reason}
       list_group_members(GroupName, Address, Port, Dir) -> {ok, Users} | {error, Reason}

              Types:

                 GroupName = string()
                 Options = [Option]
                 Option    =    {port,Port}    |    {addr,Address}    |     {dir,Directory}     |
                 {authPassword,AuthPassword}
                 Port = integer()
                 Address = {A,B,C,D} | string() | undefined
                 Dir = string()
                 Users = list()
                 AuthPassword = string()
                 Reason = term()

              list_group_members/2, list_group_members/3, and list_group_members/4 each lists the
              members of a specified group. If the group does not exist or  there  is  an  error,
              {error,  Reason} is returned. When list_group_members/2 is called, options Port and
              Dir are mandatory.

       list_users(Options) -> {ok, Users} | {error, Reason}
       list_users(Port, Dir) -> {ok, Users} | {error, Reason}
       list_users(Address, Port, Dir) -> {ok, Users} | {error, Reason}

              Types:

                 Options = [Option]
                 Option    =    {port,Port}    |    {addr,Address}    |     {dir,Directory}     |
                 {authPassword,AuthPassword}
                 Port = integer()
                 Address = {A,B,C,D} | string() | undefined
                 Dir = string()
                 Users = list()
                 AuthPassword = string()
                 Reason = atom()

              list_users/1,  list_users/2,  and  list_users/3 each returns a list of users in the
              user database for a specific Port/Dir. When list_users/1 is  called,  options  Port
              and Dir are mandatory.

       update_password(Port, Dir, OldPassword, NewPassword, NewPassword) -> ok | {error, Reason}
       update_password(Address,Port,  Dir, OldPassword, NewPassword, NewPassword) -> ok | {error,
       Reason}

              Types:

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

              update_password/5 and update_password/6 each  updates  AuthAccessPassword  for  the
              specified  directory.  If  NewPassword  is  equal  to  "NoPassword", no password is
              required to change authorisation data. If NewPassword is equal to  "DummyPassword",
              no changes can be done without changing the password first.

SEE ALSO

       httpd(3erl), mod_alias(3erl)