Re: [PATCH] GUI: Periodically reload RRD graphs

10 Mar 2021

Hi,
...
Am 08.03.2021 um 20:21 schrieb Leo-Andres Hofmann hofmann@leo-andres.de:
The RRD graphs are embedded in an iframe tag.
Do know why? Just wondering why we put an iFrame tag around the image. Should it no be possible to reload the image without an iFrame?
...
Therefore it is possible
to refresh them periodically without reloading or changing the pages.
This patch adds a graph reload javascript to the ipfire main theme.
Signed-off-by: Leo-Andres Hofmann hofmann@leo-andres.de
⬇️ This part which is not really part of the commit message, can be put before an patch using the —compose option :-).
...
Hi,
This is more of a nice-to-have, an idea I would like to present.
As I was working on the QoS graphs, I noticed that all RRD graphs are embedded in an iframe.
I wrote a little javascript that periodically reloads these graphs.
Would it not be sufficient to reload only the hourly graph? So all others have a range where I would not assume somebody to monitor them “live“.
...
The refresh interval is based on the graph's time range, i.e. hourly graphs are refreshed more often.
Reloading should stop in case of a network error, but I haven't fully tested this yet.
This patch adds a checkbox to the GUI settings (default: disabled), translations, ...
If you just want to try the javascript, you can simply paste it to the html <head> in 
html/themes/ipfire/include/functions.pl. Be sure to escape the '$' then.
Best regards
Leo
doc/language_issues.en                        |  1 +
doc/language_issues.es                        |  1 +
doc/language_issues.fr                        |  1 +
doc/language_issues.it                        |  1 +
doc/language_issues.nl                        |  1 +
doc/language_issues.pl                        |  1 +
doc/language_issues.ru                        |  1 +
doc/language_issues.tr                        |  1 +
doc/language_missings                         |  7 ++
html/cgi-bin/gui.cgi                          | 16 ++++
html/html/themes/ipfire/include/functions.pl  |  7 ++
.../themes/ipfire/include/js/reloadGraphs.js  | 81 +++++++++++++++++++
langs/de/cgi-bin/de.pl                        |  1 +
langs/en/cgi-bin/en.pl                        |  1 +
14 files changed, 121 insertions(+)
create mode 100644 html/html/themes/ipfire/include/js/reloadGraphs.js

diff --git a/doc/language_issues.en b/doc/language_issues.en
index 7819541c2..9edc57d19 100644
--- a/doc/language_issues.en
+++ b/doc/language_issues.en
@@ -1446,6 +1446,7 @@ WARNING: untranslated string: password not set = Password not set.
WARNING: untranslated string: password too short = Password is too short.
WARNING: untranslated string: passwords do not match = Passwords do not match.
WARNING: untranslated string: percentage = Percentage
+WARNING: untranslated string: periodically reload graphs = Periodically refresh RRD graphs
WARNING: untranslated string: persistent = Persistent
WARNING: untranslated string: pfs yes no = Perfect Forward Secrecy (PFS)
WARNING: untranslated string: pkcs12 file password = PKCS12 File Password
diff --git a/doc/language_issues.es b/doc/language_issues.es
index 952321fbe..3d623302c 100644
--- a/doc/language_issues.es
+++ b/doc/language_issues.es
@@ -1318,6 +1318,7 @@ WARNING: untranslated string: pakfire tree = Repository
WARNING: untranslated string: pakfire tree stable = Stable
WARNING: untranslated string: pakfire tree testing = Testing
WARNING: untranslated string: pakfire tree unstable = Unstable
+WARNING: untranslated string: periodically reload graphs = Periodically refresh RRD graphs
WARNING: untranslated string: please reboot to apply your changes = Please reboot to apply your changes
WARNING: untranslated string: pptp netconfig = My Net Config
WARNING: untranslated string: pptp peer = Peer
diff --git a/doc/language_issues.fr b/doc/language_issues.fr
index 9fe5ca21c..e3a38df4e 100644
--- a/doc/language_issues.fr
+++ b/doc/language_issues.fr
@@ -914,6 +914,7 @@ WARNING: untranslated string: guardian logtarget_syslog = unknown string
WARNING: untranslated string: guardian no entries = unknown string
WARNING: untranslated string: guardian service = unknown string
WARNING: untranslated string: pakfire ago = ago.
+WARNING: untranslated string: periodically reload graphs = Periodically refresh RRD graphs
WARNING: untranslated string: route config changed = unknown string
WARNING: untranslated string: routing config added = unknown string
WARNING: untranslated string: routing config changed = unknown string
diff --git a/doc/language_issues.it b/doc/language_issues.it
index 29c9c7d58..a66c693b0 100644
--- a/doc/language_issues.it
+++ b/doc/language_issues.it
@@ -1108,6 +1108,7 @@ WARNING: untranslated string: pakfire tree = Repository
WARNING: untranslated string: pakfire tree stable = Stable
WARNING: untranslated string: pakfire tree testing = Testing
WARNING: untranslated string: pakfire tree unstable = Unstable
+WARNING: untranslated string: periodically reload graphs = Periodically refresh RRD graphs
WARNING: untranslated string: please reboot to apply your changes = Please reboot to apply your changes
WARNING: untranslated string: pptp netconfig = My Net Config
WARNING: untranslated string: pptp peer = Peer
diff --git a/doc/language_issues.nl b/doc/language_issues.nl
index d6cad0dee..a2b978ccc 100644
--- a/doc/language_issues.nl
+++ b/doc/language_issues.nl
@@ -1140,6 +1140,7 @@ WARNING: untranslated string: pakfire tree = Repository
WARNING: untranslated string: pakfire tree stable = Stable
WARNING: untranslated string: pakfire tree testing = Testing
WARNING: untranslated string: pakfire tree unstable = Unstable
+WARNING: untranslated string: periodically reload graphs = Periodically refresh RRD graphs
WARNING: untranslated string: please reboot to apply your changes = Please reboot to apply your changes
WARNING: untranslated string: pptp netconfig = My Net Config
WARNING: untranslated string: pptp peer = Peer
diff --git a/doc/language_issues.pl b/doc/language_issues.pl
index b8fba938f..7f2b72cc0 100644
--- a/doc/language_issues.pl
+++ b/doc/language_issues.pl
@@ -1327,6 +1327,7 @@ WARNING: untranslated string: pakfire tree = Repository
WARNING: untranslated string: pakfire tree stable = Stable
WARNING: untranslated string: pakfire tree testing = Testing
WARNING: untranslated string: pakfire tree unstable = Unstable
+WARNING: untranslated string: periodically reload graphs = Periodically refresh RRD graphs
WARNING: untranslated string: please reboot to apply your changes = Please reboot to apply your changes
WARNING: untranslated string: pptp netconfig = My Net Config
WARNING: untranslated string: pptp peer = Peer
diff --git a/doc/language_issues.ru b/doc/language_issues.ru
index d507911f1..f988580cf 100644
--- a/doc/language_issues.ru
+++ b/doc/language_issues.ru
@@ -1322,6 +1322,7 @@ WARNING: untranslated string: pakfire tree = Repository
WARNING: untranslated string: pakfire tree stable = Stable
WARNING: untranslated string: pakfire tree testing = Testing
WARNING: untranslated string: pakfire tree unstable = Unstable
+WARNING: untranslated string: periodically reload graphs = Periodically refresh RRD graphs
WARNING: untranslated string: please reboot to apply your changes = Please reboot to apply your changes
WARNING: untranslated string: pptp netconfig = My Net Config
WARNING: untranslated string: pptp peer = Peer
diff --git a/doc/language_issues.tr b/doc/language_issues.tr
index 04343d527..dc0fd98f0 100644
--- a/doc/language_issues.tr
+++ b/doc/language_issues.tr
@@ -1021,6 +1021,7 @@ WARNING: untranslated string: pakfire tree = Repository
WARNING: untranslated string: pakfire tree stable = Stable
WARNING: untranslated string: pakfire tree testing = Testing
WARNING: untranslated string: pakfire tree unstable = Unstable
+WARNING: untranslated string: periodically reload graphs = Periodically refresh RRD graphs
WARNING: untranslated string: please reboot to apply your changes = Please reboot to apply your changes
WARNING: untranslated string: processor vulnerability mitigations = Processor Vulnerability Mitigations
WARNING: untranslated string: ptr = PTR
diff --git a/doc/language_missings b/doc/language_missings
index f10c4f242..89808f3b5 100644
--- a/doc/language_missings
+++ b/doc/language_missings
@@ -669,6 +669,7 @@
< pakfire tree stable
< pakfire tree testing
< pakfire tree unstable
+< periodically reload graphs
< please reboot to apply your changes
< pptp netconfig
< pptp peer
@@ -922,6 +923,7 @@
< dhcp valid range required when deny known clients checked
< g.dtm
< g.lite
+< periodically reload graphs
< token
< token not set
< upload fcdsl.o
@@ -1198,6 +1200,7 @@
< pakfire tree stable
< pakfire tree testing
< pakfire tree unstable
+< periodically reload graphs
< please reboot to apply your changes
< pptp netconfig
< pptp peer
@@ -1632,6 +1635,7 @@
< pakfire tree stable
< pakfire tree testing
< pakfire tree unstable
+< periodically reload graphs
< please reboot to apply your changes
< pptp netconfig
< pptp peer
@@ -2407,6 +2411,7 @@
< pakfire tree stable
< pakfire tree testing
< pakfire tree unstable
+< periodically reload graphs
< please reboot to apply your changes
< pptp netconfig
< pptp peer
@@ -3297,6 +3302,7 @@
< pakfire tree stable
< pakfire tree testing
< pakfire tree unstable
+< periodically reload graphs
< please reboot to apply your changes
< pptp netconfig
< pptp peer
@@ -3660,6 +3666,7 @@
< pakfire tree stable
< pakfire tree testing
< pakfire tree unstable
+< periodically reload graphs
< please reboot to apply your changes
< processor vulnerability mitigations
< ptr
diff --git a/html/cgi-bin/gui.cgi b/html/cgi-bin/gui.cgi
index f06b0f923..a5255dbce 100644
--- a/html/cgi-bin/gui.cgi
+++ b/html/cgi-bin/gui.cgi
@@ -37,6 +37,7 @@ my $errormessage='';
$cgiparams{'SPEED'} = 'off';
+$cgiparams{'RELOADGRAPHS'} = 'off';
$cgiparams{'WINDOWWITHHOSTNAME'} = 'off';
$cgiparams{'REFRESHINDEX'} = 'off';
$cgiparams{'ACTION'} = '';
@@ -88,6 +89,7 @@ if ($cgiparams{'ACTION'} eq "$Lang::tr{'save'}")
   $mainsettings{'WINDOWWITHHOSTNAME'} = $cgiparams{'WINDOWWITHHOSTNAME'};
   $mainsettings{'PPPUPDOWNBEEP'} = $cgiparams{'PPPUPDOWNBEEP'};
   $mainsettings{'SPEED'} = $cgiparams{'SPEED'};

$mainsettings{'RELOADGRAPHS'} = $cgiparams{'RELOADGRAPHS'};
$mainsettings{'THEME'} = $cgiparams{'theme'};
$mainsettings{'REFRESHINDEX'} = $cgiparams{'REFRESHINDEX'};
&General::writehash("${General::swroot}/main/settings", %mainsettings);

@@ -125,6 +127,11 @@ if ($cgiparams{'ACTION'} eq "$Lang::tr{'save'}")
   # by manually setting the var to off
       $cgiparams{'SPEED'} = 'on';
   }

if($mainsettings{'RELOADGRAPHS'}) {
   $cgiparams{'RELOADGRAPHS'} = $mainsettings{'RELOADGRAPHS'};


} else {
   $cgiparams{'RELOADGRAPHS'} = 'off';


}

}
# Default settings
@@ -134,6 +141,7 @@ if ($cgiparams{'ACTION'} eq "$Lang::tr{'restore defaults'}")
   $cgiparams{'PPPUPDOWNBEEP'} = 'on';
   $cgiparams{'REFRESHINDEX'} = 'off';
   $cgiparams{'SPEED'} = 'on';

$cgiparams{'RELOADGRAPHS'} = 'off';
$cgiparams{'THEME'} = 'ipfire';

}
@@ -153,6 +161,10 @@ $checked{'SPEED'}{'off'} = '';
$checked{'SPEED'}{'on'} = '';
$checked{'SPEED'}{$cgiparams{'SPEED'}} = "checked='checked'";
+$checked{'RELOADGRAPHS'}{'off'} = '';
+$checked{'RELOADGRAPHS'}{'on'} = '';
+$checked{'RELOADGRAPHS'}{$cgiparams{'RELOADGRAPHS'}} = "checked='checked'";



&Header::openpage($Lang::tr{'gui settings'}, 1, '');
&Header::openbigbox('100%', 'left', '', $errormessage);
@@ -179,6 +191,10 @@ print <<END
    <td><input type='checkbox' name='SPEED' $checked{'SPEED'}{'on'} /></td>
    <td>$Lang::tr{'show ajax speedmeter in footer'}</td>
</tr>
+<tr>
+    <td><input type='checkbox' name='RELOADGRAPHS' $checked{'RELOADGRAPHS'}{'on'} /></td>
+    <td>$Lang::tr{'periodically reload graphs'}</td>
+</tr>
<tr>
    <td>&nbsp;</td>
    <td>$Lang::tr{'languagepurpose'}</td>
diff --git a/html/html/themes/ipfire/include/functions.pl b/html/html/themes/ipfire/include/functions.pl
index 9aec77497..7f3401119 100644
--- a/html/html/themes/ipfire/include/functions.pl
+++ b/html/html/themes/ipfire/include/functions.pl
@@ -147,6 +147,13 @@ END
;
}
+if ($settings{'RELOADGRAPHS'} eq 'on') {
+print <<END

<script src="/themes/ipfire/include/js/reloadGraphs.js"></script>


+END
+;
+}



print <<END
   </head>
   <body>
diff --git a/html/html/themes/ipfire/include/js/reloadGraphs.js b/html/html/themes/ipfire/include/js/reloadGraphs.js
new file mode 100644
index 000000000..c0c8bec9e
--- /dev/null
+++ b/html/html/themes/ipfire/include/js/reloadGraphs.js
@@ -0,0 +1,81 @@
+/*#############################################################################
+#                                                                             #
+# IPFire.org - A linux based firewall                                         #
+# Copyright (C) 2007-2021  IPFire Team  <info@ipfire.org>                     #
+#                                                                             #
+# This program is free software: you can redistribute it and/or modify        #
+# it under the terms of the GNU General Public License as published by        #
+# the Free Software Foundation, either version 3 of the License, or           #
+# (at your option) any later version.                                         #
+#                                                                             #
+# This program is distributed in the hope that it will be useful,             #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
+# GNU General Public License for more details.                                #
+#                                                                             #
+# You should have received a copy of the GNU General Public License           #
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
+#                                                                             #
+#############################################################################*/        
+
+var graphs_reloadTimers = new Map();
+
+//graph onload event: graph is now loaded, start reload timer
+function graphs_onloadEvent(graphObj, startTimer = true) {        
+    if(! graphObj) {
+        return; //graph iframe object is missing
+    }
+
+    //get graph parameters from iframe url: [url]?[graph name]?[time range]
+    let url = graphObj.contentWindow.location.href;
+    if((! url) || (url === 'about:blank')) {
+        url = graphObj.src;
+    }
+    url = url.split('?', 3);
+    let graphRange = url.pop();
+    let graphName = url.pop();
+
+    if((! graphName) || (! graphRange)) {
+        return; //url parameters are missing
+    }
+
+    //clear pending reload timeout to prevent multiple timer starts
+    if(graphs_reloadTimers.has(graphName)) {
+        clearTimeout(graphs_reloadTimers.get(graphName));
+        graphs_reloadTimers.delete(graphName);
+    }
+
+    if(startTimer) {
+        //determine reload interval
+        let interval = 60; //default: 60s
+        if(graphRange === 'hour') {
+            interval = 10;
+        } else if(graphRange === 'month' || graphRange === 'year') {
Do not think that’s this makes any sense here. Should not change a pixel in this graphs :-). Why is day not listed here ?
...

       interval = 180;


   }



   //start timeout and store timer id


   let timer = setTimeout(function(graphFrame, timerRef) {


       graphs_reloadTimers.delete(timerRef); //clear expired timer



       //reload graph iframe, ignore cache


       graphFrame.contentWindow.location.reload(true);


   }, interval * 1000, graphObj, graphName);


   graphs_reloadTimers.set(graphName, timer);


}

+}



Would it no be easier to attach this directly to a graph so inside the function which creates the graph, should be makegraphs() or something like that?
...
+//document.ready, must fire before iframes load
+$(function() {

//attach onload event to graphs
$('iframe.graph').each(function() {
   $(this).on({


       load: function() {


           graphs_onloadEvent(this);


       },


       error: function() { //stop reload on error


           graphs_onloadEvent(this, false);


       }


   });


});

+});
diff --git a/langs/de/cgi-bin/de.pl b/langs/de/cgi-bin/de.pl
index b3c2a69da..00e6b9853 100644
--- a/langs/de/cgi-bin/de.pl
+++ b/langs/de/cgi-bin/de.pl
@@ -2007,6 +2007,7 @@
'pc add' => 'PC hinzufügen',
'pdc options' => 'PDC Optionen',
'percentage' => 'Prozent',
+'periodically reload graphs' => 'RRD Graphen periodisch neu laden',
'persistent' => 'Dauerhaft',
'pfs yes no' => 'Perfect Forward Secrecy (PFS)',
'phase1 group' => 'Phase1 Gruppe',
diff --git a/langs/en/cgi-bin/en.pl b/langs/en/cgi-bin/en.pl
index 9767be178..ed9e4996a 100644
--- a/langs/en/cgi-bin/en.pl
+++ b/langs/en/cgi-bin/en.pl
@@ -2037,6 +2037,7 @@
'pc add' => 'Add workstation',
'pdc options' => 'PDC options',
'percentage' => 'Percentage',
+'periodically reload graphs' => 'Periodically refresh RRD graphs',
'persistent' => 'Persistent',
'pfs yes no' => 'Perfect Forward Secrecy (PFS)',
'phase1 group' => 'Phase1 Group',
-- 
2.27.0.windows.1
Some generic thoughts. Would it not be better to remove the iFrame and make the links for hour/day/month/year firing some JavaScripts which reloads/changes the graphs? And then when we click hour start this script to reload the graphs periodically?
Thanks for the nice patch. It is easy to review :-)
Greetings Jonatan

    

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Re: [PATCH] GUI: Periodically reload RRD graphs

Signed-off-by: Leo-Andres Hofmann hofmann@leo-andres.de