v2.21 - Added #57 enhancement for manipulation of data value truncing

README.md

@@ -23,10 +23,19 @@ Please refer to the Wiki how to get mailGraph installed and configured on your s
 ## Reference websites ##
 [Extensive GERMAN installation from scratch](https://znil.net/index.php?title=Zabbix_mailGraph_installieren_-_Trigger_Alerts_Emails_mit_Grafiken) - nice work from Bernard Linz
 
-## Announcement - Zabbix 5.x maintenance for mailGraph end-of-life - mailGraph 3.x development in progress ##
+## Announcements ##
-_(2024/01/26)_
+_(2025/02/04)_
 
-First mailGraph v3 release is underway, now supporting Zabbix 7 (in particular the new API bearer token authentication method).
+Started on coding and testing mailGraph v3.
+
+_(2025/01/26)_
+
+mailGraph v2.20 now supporting Zabbix 7.0 (LTS) and Zabbix 7.2 (in particular the new API bearer token authentication method).
+
+_(2024/12/01)_
+
+As per December 2024 PHP 7 and older is no longer supported. Please upgrade to a supported PHP 8 version.
+Note that mailGraph is expected to function in older PHP versions.
 
 _(2023/11/01)_
 
@@ -34,8 +43,12 @@ As per November 2023 the maintenance on mailGraph v2.x for Zabbix 5.x will stop
 
 Principal bug fixing on mailGraph v2.x (logic failure or similar) will continue but only for Zabbix 6.x onwards.
 
+## Ideas and improvements ##
+
 I'm open to new feature requests - please raise an issue for this in this Github space.
 
+[#50 - Docker support](https://github.com/moudsen/mailGraph/issues/50) - Docker support inserted shortly after testing; will be pushed into release 3 shortly.
+
 ## Special thank you ##
 I would like to express my gratitude to the following people that have actively contributed to bring bugs and improvements to my attention:
 - [pqvindesland](https://github.com/pqvindesland)

config/config.json.template

@@ -23,6 +23,7 @@
     "smtp_reply_address": "feedback@mydomain.com",
     "smtp_reply_name": "mailGraph response mailbox",
     "graph_match": "any",
+    "item_value_truncate": 50,
     "period": "20m",
     "period_header": "Last 20 minutes",
     "retention_images": 7,

config/config.json.template.api_token

@@ -0,0 +1,31 @@
+{
+    "script_baseurl": "https:\/\/mydomain.com\/",
+    "cli_eventId": 0,
+    "cli_duration": 0,
+    "cli_recipient": "recipient@mydomain.com",
+    "cli_subject": "[TEST] {{ HOST_NAME|raw }}:  ({{ EVENT_SEVERITY }}) {{ EVENT_NAME|raw }}",
+    "cli_baseURL": "https:\/\/mydomain.com\/zabbix\/",
+    "cli_period": "30m",
+    "cli_period_header": "Last 30 minutes",
+    "cli_debug": 1,
+    "cli_proxy": "",
+    "zabbix_user": "alogicalusername",
+    "zabbix_user_pwd": "astrongpassword",
+    "zabbix_api_token": "TheTokenGeneratedInZabbix",
+    "subject": "{{ HOST_NAME|raw }}:  ({{ EVENT_SEVERITY }}) {{ EVENT_NAME|raw }}",
+    "smtp_server": "localhost",
+    "smtp_port": 25,
+    "smtp_security": "none",
+    "smtp_strict": "yes",
+    "smtp_from_address": "mailgraph@mydomain.com",
+    "smtp_from_name": "mailGraph",
+    "smtp_reply_address": "feedback@mydomain.com",
+    "smtp_reply_name": "mailGraph response mailbox",
+    "graph_match": "any",
+    "item_value_truncate": 50,
+    "period": "20m",
+    "period_header": "Last 20 minutes",
+    "retention_images": 7,
+    "retention_logs": 14,
+    "debug": 0
+}

config/config.json.template.multigraph

@@ -23,6 +23,7 @@
     "smtp_reply_address": "feedback@mydomain.com",
     "smtp_reply_name": "mailGraph response mailbox",
     "graph_match": "any",
+    "item_value_truncate": 50,
     "periods": "10m,4h,2d,7d",
     "periods_headers": "Last 10 minutes,Last 4 hours,Last 2 days,Last 7 days",
     "debug": 0

javascript/zabbix.mailGraph.js

@@ -1,4 +1,4 @@
-// mailGraph v2.16
+// mailGraph v2.20
 
 // Function to test string
 function isJSON(str) {

mailGraph.php

@@ -45,6 +45,7 @@
     // Release 3 placeholder for Zabbix 7.0 LTS and 7.2+
     // ------------------------------------------------------------------------------------------------------
     // 2.20                            Tested in Zabbix 7.0.7 LTS and Zabbix 7.2.2
+    // 2.21 2025/02/20 - Mark Oudsen - Added #57 enhancement for manipulation of data value truncing
     // ------------------------------------------------------------------------------------------------------
     //
     // (C) M.J.Oudsen, mark.oudsen@puzzl.nl
@@ -109,7 +110,7 @@
     /////////////////////////////////////////////////////////////////////////////////////////////////////////
 
     // CONSTANTS
-    $cVersion = 'v2.20';
+    $cVersion = 'v2.21';
     $cCRLF = chr(10).chr(13);
     $maskDateTime = 'Y-m-d H:i:s';
     $maxGraphs = 8;
@@ -721,6 +722,9 @@
     $p_graph_match = 'any';
     if ((isset($config['graph_match'])) && ($config['graph_match']=='exact')) { $p_graph_match = 'exact'; }
 
+    $p_item_value_truncate = 0;
+    if (isset($config['item_value_truncate'])) { $p_item_value_truncate = intval($config['item_value_truncate']); }
+
     // --- GLOBAL CONFIGURATION ---
 
     // Script related settings
@@ -1076,6 +1080,10 @@
                     _log('+ Trigger screen header = '.$triggerScreenPeriodHeader);
                 }
                 break;
+            case 'mailGraph.valueTruncate':
+                $p_item_value_truncate = intval($aTag['value']);
+                _log('+ Data value truncing = '.$p_item_value_truncate);
+                break;
         }
     }
 
@@ -1120,9 +1128,11 @@
     if (substr($mailData['ITEM_LASTVALUE'],0,5)=='<?xml') { $mailData['ITEM_LASTVALUE'] = '[record]'; }
     if (substr($mailData['ITEM_PREVIOUSVALUE'],0,5)=='<?xml') { $mailData['ITEM_PREVIOUSTVALUE'] = '[record]'; }
 
-    // Catch long elements
+    // Handling long data elements
-    if (strlen($mailData['ITEM_LASTVALUE'])>50) { $mailData['ITEM_LASTVALUE'] = substr($mailData['ITEM_LASTVALUE'],0,50).' ...'; }
+    if ($p_item_value_truncate>0) {
-    if (strlen($mailData['ITEM_PREVIOUSVALUE'])>50) { $mailData['ITEM_PREVIOUSVALUE'] = substr($mailData['ITEM_PREVIOUSVALUE'],0,50).' ...'; }
+        if (strlen($mailData['ITEM_LASTVALUE'])>$p_item_value_truncate) { $mailData['ITEM_LASTVALUE'] = substr($mailData['ITEM_LASTVALUE'],0,$p_item_value_truncate).' ...'; }
+        if (strlen($mailData['ITEM_PREVIOUSVALUE'])>$p_item_value_truncate) { $mailData['ITEM_PREVIOUSVALUE'] = substr($mailData['ITEM_PREVIOUSVALUE'],0,$p_item_value_truncate).' ...'; }
+    }
 
     // ---------------------
     // --- GET HOST INFO ---
@@ -1352,26 +1362,30 @@
 
         $result = array();
 
-        foreach($screenGraphs['result'][0]['screenitems'] as $anItem)
+        if (isset($screenGrahps['result'][0]['screenitems'])) {
-        {
+            foreach($screenGraphs['result'][0]['screenitems'] as $anItem)
-            switch($anItem['resourcetype'])
             {
-                case 0: // Graph
+                switch($anItem['resourcetype'])
-                    $request = array('jsonrpc'=>'2.0',
+                {
-                                     'method'=>'graph.get',
+                    case 0: // Graph
-                                     'params'=>array('graphids'=>$anItem['resourceid'],
+                        $request = array('jsonrpc'=>'2.0',
-                                                     'expandName'=>1,
+                                         'method'=>'graph.get',
-                                                     'output'=>'extend'),
+                                         'params'=>array('graphids'=>$anItem['resourceid'],
-                                     'auth'=>$token,
+                                                         'expandName'=>1,
-                                     'id'=>nextRequestID());
+                                                         'output'=>'extend'),
+                                         'auth'=>$token,
+                                         'id'=>nextRequestID());
 
-                    $screenGraph = postJSON($z_url_api,$request);
+                        $screenGraph = postJSON($z_url_api,$request);
-                    _log('+ Graph data for screen item #'.$anItem['screenitemid'].$cCRLF.
+                        _log('+ Graph data for screen item #'.$anItem['screenitemid'].$cCRLF.
-                         json_encode($screenGraph,JSON_PRETTY_PRINT|JSON_NUMERIC_CHECK));
+                             json_encode($screenGraph,JSON_PRETTY_PRINT|JSON_NUMERIC_CHECK));
 
-                    $result[] = array('screen'=>$anItem,'name'=>$screenGraphs['result'][0]['name'],'graph'=>$screenGraph['result'][0]);
+                        $result[] = array('screen'=>$anItem,'name'=>$screenGraphs['result'][0]['name'],'graph'=>$screenGraph['result'][0]);
-                    break;
+                        break;
+                }
             }
+        } else {
+            _log('> No screen items associated to this screen?');
         }
 
         // --- Sort the result according to SCREEN x,y position
@@ -1598,6 +1612,12 @@
     $mailData['EVENT_DURATION'] = $p_duration;
     $mailData['HOST_PROBLEMS_URL'] = $z_server.'zabbix.php?show=1&name=&inventory%5B0%5D%5Bfield%5D=type&inventory%5B0%5D%5Bvalue%5D=&evaltype=0&tags%5B0%5D%5Btag%5D=&tags%5B0%5D%5Boperator%5D=0&tags%5B0%5D%5Bvalue%5D=&show_tags=3&tag_name_format=0&tag_priority=&show_opdata=0&show_timeline=1&filter_name=&filter_show_counter=0&filter_custom_time=0&sort=clock&sortorder=DESC&age_state=0&show_suppressed=0&unacknowledged=0&compact_view=0&details=0&highlight_row=0&action=problem.view&hostids%5B%5D='.$mailData['HOST_ID'];
 
+    // Handling long data elements
+    if ($p_item_value_truncate>0) {
+        if (strlen($mailData['ITEM_LASTVALUE'])>$p_item_value_truncate) { $mailData['ITEM_LASTVALUE'] = substr($mailData['ITEM_LASTVALUE'],0,$p_item_value_truncate).' ...'; }
+        if (strlen($mailData['ITEM_PREVIOUSVALUE'])>$p_item_value_truncate) { $mailData['ITEM_PREVIOUSVALUE'] = substr($mailData['ITEM_PREVIOUSVALUE'],0,$p_item_value_truncate).' ...'; }
+    }
+
     /////////////////////////////////////////////////////////////////////////////////////////////////////////
     // Compose & Send Message ///////////////////////////////////////////////////////////////////////////////
     /////////////////////////////////////////////////////////////////////////////////////////////////////////

templates/html.template

@@ -101,7 +101,7 @@
                                 ({{ HOST_ERROR }})
 {% endif %}
                                 <br/>
-{% if EVENT_OPDATE|length > 0 %}
+{% if EVENT_OPDATA|length > 0 %}
                                 Operational data: <b>{{ EVENT_OPDATA }}</b><br/>
 {% endif %}
                                 Status: <b>{{ EVENT_STATUS }}</b><br/>