34.2. HTTP tables

34.2. HTTP tables
	Chapter 34. HTTP - HyperText Transfer Protocol

Abilis implements an access control system based on:

authentication of the user in the Users table;
creation of a virtual path in the HTTP Virtual Roots Path table;
creation of a access right for that virtual Path in the FTP Virtual Paths Access Rights table.

34.2.1. Users table

Users can access to HTTP server only if they are enabled to HTTP service (parameter HTTP set tot YES).

[16:50:04] ABILIS_CPX:d user

USER:                  PWD: ACT: CTIP: CLUS:    PPP: FTP: HTTP: MAIL: IAX: SIP:
--------------------------------+--------------+-------------------------------
admin                       NO   #     #        YES  YES  YES   NO    NO   NO
guest                       NO   #     #        NO   NO   NO    NO    NO   NO
httpuser                    YES  #     #        NO   NO   YES   NO    NO   NO

To show the detailed user configuration parameters, type the command d user:<username>.

[16:50:06] ABILIS_CPX:d user:httpuser

Parameter:        | Value:
------------------+------------------------------------------------------------
USER:               httpuser
ALIAS:              httpuser
ID:                 3    <Read Only>
PWD:
ACT:                YES
GROUP:
CTIP:               #
CLUS:               #
OPC-MONITOR:        NONE
HTTP:               YES
HTTP-PROT:          PLAIN,SSL
-------------------------------------------------------------------------------

	Tip
	Interesting chapter: Section 5.9, “Users Table”.

Meaning of the parameters:

HTTP: Enables/disables the HTTP service.
HTTP-PROT: User's access protocol [PLAIN: not encrypted; SSL: encrypted].

34.2.2. HTTP Virtual Root Paths Table

HTTP Virtual Paths Table specifies the association between virtual paths and their respective physical paths.

Virtual Paths can be added/set/displayed/cleared with the commands:

a/s/d/c http path:<virtual path> [phys-path:<physical path>]

The whole table can be shown with the following command. The table is empty by default:

[15:12:11] ABILIS_CPX:d http path

Parameter:  | Value:
------------+------------------------------------------------------------------
PATH:         /test/
PHYS-PATH:    c:\usr\pub\test\
-------------------------------------------------------------------------------
PATH:         /trfafiles/
PHYS-PATH:    c:\app\trfa\
-------------------------------------------------------------------------------

Type the below command to show a specific path:

[15:12:15] ABILIS_CPX:d http path:/test/

Parameter:  | Value:
------------+------------------------------------------------------------------
PATH:         /test/
PHYS-PATH:    c:\usr\pub\test\
-------------------------------------------------------------------------------

Meaning of the parameters:

PATH: Specifies a directory virtual path with UNIX notation. Virtual path / needs not to be specified because / does never refer to physical path, it is only the “container” of virtual paths. The maximum length is of 32 characters.
PHYS-PATH: Specifies a directory physical path, with DOS notation (it starts with the disk letter and it ends with the character \ ). The maximum length is of 128 characters.

34.2.3. HTTP Virtual Paths Access Rights Table

This table specifies the associations between virtual paths, users and their respective access rights.

Access rights for a specific virtual path can be added/set/displayed/cleared with the following commands.

a http rights path:<virtual path> | id:<id>: adds the path only.
a http rights path:<virtual path> | id:<id> [user:<user> file:<file rights> dir:<dir rights> recur:yes|no mode:plain,ssl]: adds user and path.
s http rights path:<virtual path> | id:<id> user:<user> [file:<file rights> dir:<dir rights> recur:yes|no mode:plain,ssl]: sets rights and other parameters for an already existent user.
c http rights path:<virtual path> | id:<id> user:<user>: deletes an existing user; if the user is the last one the path is not deleted.
d http rights: displays rights summary.
d http rights path:<virtual path> | id:<id>: displays rights for a specific path.
d http rights user:<user>: displays rights which a user has on all paths; the paths for which the user is not defined are skipped.

Tip

Access rights for a specific virtual path can be added/set/displayed/cleared specifying the path or the id: the following commands are equivalent.

[12:14:07] ABILIS_CPX:_d http rights id:1

-------------------------------------------------------------------------------
ID: PATH:
       USER:                            FILE: DIR:  RECUR: PROT:
-------------------------------------------------------------------------------
  1 /sys/
       admin                            r---  l---  YES    PLAIN,SSL
       test2                            r---  l---  YES    PLAIN,SSL
-------------------------------------------------------------------------------

[12:14:17] ABILIS_CPX:_d http rights path:/sys/

-------------------------------------------------------------------------------
ID: PATH:
       USER:                            FILE: DIR:  RECUR: PROT:
-------------------------------------------------------------------------------
  1 /sys/
       admin                            r---  l---  YES    PLAIN,SSL
       test2                            r---  l---  YES    PLAIN,SSL
-------------------------------------------------------------------------------

An example of the output is shown below (by default the table contains the following entries):

[17:54:31] ABILIS_CPX:d http rights

-------------------------------------------------------------------------------
ID: PATH:
       USER:                            FILE: DIR:  RECUR: PROT:
-------------------------------------------------------------------------------
  1 /sys/
       admin                            r---  l---  YES    PLAIN,SSL
-------------------------------------------------------------------------------
  2 /sys/pub/
       anonymous                        r---  ----  YES    PLAIN,SSL
-------------------------------------------------------------------------------

The rights are split in “file rights” and “directory rights” and are configured/viewed with two different parameters: FILE and DIR.

Table 34.1. FILE parameters values

R	W	D	N
Read	Write	Delete	Rename

Table 34.2. DIR parameters values

L	C	D	N
List	Create	Delete	Rename

The syntax is:

FILE:[+|-R][+|-W][+|-D][+|-N] DIR:[+|-L][+|-C][+|-D][+|-N]

The + sets granted right.
The - sets denied right.
If + or - is not specified, the value + is assumed, so it may be omitted.
Not specified right is left unchanged.
FILE and DIR values do not care of the characters' position.
FILE and DIR values are case insensitive.

The following commands are equivalent:

S HTTP RIGHTS PATH:/ USER:test FILE:+R+W+D+N
S HTTP RIGHTS PATH:/ USER:test FILE:rwdn
S HTTP RIGHTS PATH:/ USER:test FILE:NdwR
S HTTP RIGHTS PATH:/ USER:test FILE:+D-N
S HTTP RIGHTS PATH:/ USER:test FILE:D-N
S HTTP RIGHTS PATH:/ USER:test FILE:-ND


34.1. HTTP resource		34.3. HTTP diagnostics and statistics