Change TimeZone for a specific suer

[alexmartin]

Hi,

I have a central cacti server and have configured 20servers to monitor for my customers. But the customers are live in different locations and they need to change the timezone to view graph in their timezone. So I am not sure how to change the timezone for a particular user cacti account.

Can anyone let me know how to change this?

Thanks.

[rony]

Not currently supported...

[gandalf]

But will be supported starting with 1.0.0
R.

[noname]

From interests, I've tried implementing user specific timezone when viewing graphs.

Graph settings (per user)





When selected another timezone





Patch file for Cacti 0.8.7g +official patch +PIA2.9

user_timezone.patch.zip

(5.36 KiB) Downloaded 119 times

- To apply:
% patch -p1 -N < /tmp/user_timezone.patch
patching file include/global_settings.php
patching file include/global_arrays.php
patching file lib/time.php
patching file lib/rrd.php

- To revert:
% patch -p1 -N --reverse < /tmp/user_timezone.patch


Modification summary
- Borrowed basic idea from here: http://www.vandenbogaerdt.nl/rrdtool/timezone.php

- Timezone lists are created from PECL's timezonedb.h

- Define new function to change TZ environment in lib/time.php

Code: Select all

/* set_user_timezone    - set user specific timezone for displaying graphs
 * @arg $timezone       - timezone string
 */
function set_user_timezone($timezone = '') {
        global $config;
        include($config["include_path"] . "/global_arrays.php");

        if (empty($timezone)) {
                $tz_id = read_graph_config_option("default_user_timezone");
                if (!isset($tz_id) || $tz_id == '0') {
                        return '';
                }
                $timezone = $graph_usertimezones[$tz_id];
        }
        putenv("TZ=" . $timezone);

        return $timezone;
}

NOTE: date_default_timezone_set() doesn't take effect because (maybe) that is only available in PHP session (not in HTML part)..

- Change timezone in functions referring to date/time in lib/time.php

Code: Select all

function get_timespan(&$span, $curr_time, $timespan_given, $first_weekdayid) {
        set_user_timezone();
        ...
}
function check_month_boundaries(&$span) {
        set_user_timezone();
        ...
}
function shift_right_boundary(&$span, $direction, $shift_size) {
        set_user_timezone();
        ...
}
function shift_time(&$span, $direction, $shift_size) {
        set_user_timezone();
        ...
}

- Also in lib/rrd.php

Code: Select all

function rrdtool_function_graph($local_graph_id, $rra_id, $graph_data_array, &$rrdtool_pipe) {
        ...
        /* set timezone */
        include_once($config["library_path"] . "/time.php");
        $tz_serv = getenv("TZ");
        $tz_user = set_user_timezone();

        /* setup date format */
        ...
        ...
        /* show timezone if needed */
        if (read_graph_config_option("display_timezone_in_graph") == "on") {
                $txt_graph_items .= RRD_NL . "COMMENT:\" \\n\"";
                $txt_graph_items .= RRD_NL . "COMMENT:\"Timezone for displaying = " . ($tz_user == '' ? "default(" . $tz_serv . ")" : $tz_user) . "\"";
        }

        $graph_array = api_plugin_hook_function('rrd_graph_graph_options', ...

Known issue
Server's timezone is changed temporarily only when displaying graphs, so any logs (PHP error log, Cacti's web events, etc.) are recorded with timestamps of selected timezone at that moment.

// Sorry my English