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Add compatibility to default icinga2 graphite writer. #237

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Add compatibility to default icinga2 graphite writer. #237

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68a1615
Fix translations, comments, identation
tobiasstein Feb 18, 2020
fdc6a4b
Unify style of control structures
tobiasstein Feb 18, 2020
45170df
Change order of parameters width and height in forms.
tobiasstein Feb 18, 2020
099eea7
Introduce new options to forms for graphite.
tobiasstein Feb 18, 2020
c7bcc6b
Alter debug info
tobiasstein Feb 18, 2020
8e502c1
Add alternate grafana dashboard Icinga2-default
tobiasstein Feb 18, 2020
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74 changes: 47 additions & 27 deletions application/controllers/ImgController.php
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ class ImgController extends MonitoringAwareController
{
protected $host;
protected $service;
protected $graphType = 'services';
protected $timerange;
protected $myConfig;
protected $myAuth;
Expand All @@ -34,6 +35,8 @@ class ImgController extends MonitoringAwareController
protected $height = 280;
protected $defaultDashboard = "icinga2-default";
protected $defaultDashboardPanelId = "1";
protected $defaultDashboardPanelIdHost = "2";
protected $defaultDashboardPanelIdServices = "1";
protected $defaultOrgId = "1";
protected $shadows = false;
protected $defaultDashboardStore = "db";
Expand All @@ -50,21 +53,24 @@ class ImgController extends MonitoringAwareController

public function init()
{

/* we need at least a host name */
if (is_null($this->getParam('host')))
{
throw new \Error('No host given!');
}

/* save timerange from params for later use */
$this->timerange = $this->hasParam('timerange') ? urldecode($this->getParam('timerange')) : null;
$this->timerange = $this->hasParam('timerange')
? urldecode($this->getParam('timerange'))
: null;
if($this->hasParam('timerangeto')) {
$this->timerangeto = urldecode($this->getParam('timerangeto'));
} else {
$this->timerangeto = strpos($this->timerange, '/') ? 'now-' . $this->timerange : "now";
}
$this->cacheTime = $this->hasParam('cachetime') ? $this->getParam('cachetime') : 300;
$this->cacheTime = $this->hasParam('cachetime')
? $this->getParam('cachetime')
: 300;

/* load global configuration */
$this->myConfig = Config::module('grafana')->getSection('grafana');
Expand All @@ -79,12 +85,15 @@ public function init()

$this->defaultDashboard = $this->myConfig->get('defaultdashboard', $this->defaultDashboard);
$this->defaultdashboarduid = $this->myConfig->get('defaultdashboarduid', NULL);
if ($this->grafanaVersion == "1" && is_null($this->defaultdashboarduid)) {
if ($this->grafanaVersion == "1"
&& is_null($this->defaultdashboarduid)) {
throw new ConfigurationError(
'Usage of Grafana 5 is configured but no UID for default dashboard found!'
);
}
$this->defaultDashboardPanelId = $this->myConfig->get('defaultdashboardpanelid', $this->defaultDashboardPanelId);
$this->defaultDashboardPanelIdHost = $this->myConfig->get('defaultdashboardpanelid_host', $this->defaultDashboardPanelIdHost);
$this->defaultDashboardPanelIdServices = $this->myConfig->get('defaultdashboardpanelid_services', $this->defaultDashboardPanelIdServices);
$this->defaultOrgId = $this->myConfig->get('defaultorgid', $this->defaultOrgId);
$this->grafanaTheme = $this->myConfig->get('theme', $this->grafanaTheme);
$this->defaultDashboardStore = $this->myConfig->get('defaultdashboardstore', $this->defaultDashboardStore);
Expand Down Expand Up @@ -122,7 +131,6 @@ public function init()
/**
* Username & Password or token
*/

$this->apiToken = $this->myConfig->get('apitoken', $this->apiToken);
$this->authentication = $this->myConfig->get('authentication');
if ($this->apiToken == null && $this->authentication == "token") {
Expand All @@ -142,7 +150,6 @@ public function init()
$this->myAuth = "";
}
}

}

public function indexAction()
Expand All @@ -160,7 +167,8 @@ public function indexAction()
$hostName = $this->object->getName();
}

if (array_key_exists($this->custvarconfig, $this->object->customvars) && ! empty($this->object->customvars[$this->custvarconfig])) {
if (array_key_exists($this->custvarconfig, $this->object->customvars)
&& ! empty($this->object->customvars[$this->custvarconfig])) {
$this->setGraphConf($this->object->customvars[$this->custvarconfig]);
} else {
$this->setGraphConf($serviceName, $this->object->check_command);
Expand All @@ -175,7 +183,7 @@ public function indexAction()
$this->customVars = str_replace($search, $replace, $this->customVars);
}

// urlencodee values
// urlencode values
$customVars = "";
foreach (preg_split('/\&/', $this->customVars, -1, PREG_SPLIT_NO_EMPTY) as $param) {
$arr = explode("=", $param);
Expand All @@ -196,7 +204,7 @@ public function indexAction()
}

$imageHtml = "";
$res = $this->getMyimageHtml($serviceName, $hostName, $imageHtml);
$res = $this->getMyImageHtml($serviceName, $hostName, $imageHtml);
header('Pragma: public');
if($this->refresh == "yes") {
header('Pragma: public');
Expand All @@ -207,8 +215,7 @@ public function indexAction()
header('Cache-Control: max-age='. (365*86440));
}
header("Content-type: image/png");
if (! $res)
{
if (! $res) {
// set expire to now and max age to 1 minute
header("Expires: ".gmdate("D, d M Y H:i:s", time())." GMT");
header('Cache-Control: max-age='. 120);
Expand Down Expand Up @@ -266,47 +273,58 @@ private function setGraphConf($serviceName, $serviceCommand = NULL)
{
$graphConfig = Config::module('grafana', 'graphs');

if ($graphConfig->hasSection(strtok($serviceName, ' ')) && ($graphConfig->hasSection($serviceName) == False)) {
if ($graphConfig->hasSection(strtok($serviceName, ' '))
&& ($graphConfig->hasSection($serviceName) == False)) {
$serviceName = strtok($serviceName, ' ');
}
if ($graphConfig->hasSection(strtok($serviceName, ' ')) == False && ($graphConfig->hasSection($serviceName) == False)) {
if ($graphConfig->hasSection(strtok($serviceName, ' ')) == False
&& ($graphConfig->hasSection($serviceName) == False)) {
$serviceName = $serviceCommand;
if($graphConfig->hasSection($serviceCommand) == False && $this->defaultDashboard == 'none') {
if($graphConfig->hasSection($serviceCommand) == False
&& $this->defaultDashboard == 'none') {
return NULL;
}
}

$this->dashboard = $graphConfig->get($serviceName, 'dashboard', $this->defaultDashboard);
if ($this->grafanaVersion == "1")
{
if ($this->grafanaVersion == "1") {
$this->dashboarduid = $graphConfig->get($serviceName, 'dashboarduid', $this->defaultdashboarduid);
} else {
$this->dashboardstore = $graphConfig->get($serviceName, 'dashboardstore', $this->defaultDashboardStore);
}
$this->panelId = $this->hasParam('panelid') ? $this->getParam('panelid') : $graphConfig->get($serviceName, 'panelId', $this->defaultDashboardPanelId);
$this->panelId = $this->hasParam('panelid')
? $this->getParam('panelid')
: $graphConfig->get($serviceName, 'panelId', $this->defaultDashboardPanelId);
$this->panelIdHost = $this->hasParam('panelidhost')
? $this->getParam('panelidhost')
: $graphConfig->get($serviceName, 'panelIdHost', $this->defaultDashboardPanelIdHost);
$this->panelIdServices = $this->hasParam('panelidservices')
? $this->getParam('panelidservices')
: $graphConfig->get($serviceName, 'panelIdServices', $this->defaultDashboardPanelIdServices);
$this->orgId = $graphConfig->get($serviceName, 'orgId', $this->defaultOrgId);
$this->customVars = $graphConfig->get($serviceName, 'customVars', '');
$this->height = $graphConfig->get($serviceName, 'height', $this->height);
$this->width = $graphConfig->get($serviceName, 'width', $this->width);

}
private function getMyimageHtml($serviceName, $hostName, &$imageHtml)

private function getMyImageHtml($serviceName, $hostName, &$imageHtml, $graphType )
{
$imgClass = $this->shadows ? "grafana-img grafana-img-shadows" : "grafana-img";
// Test whether curl is loaded
if (extension_loaded('curl') === false) {
$imageHtml = $this->translate('CURL extension is missing. Please install CURL for PHP and ensure it is loaded.');
return false;
}
if ($this->grafanaVersion == "1")
{

if ($this->grafanaVersion == "1") {
$this->pngUrl = sprintf(
'%s://%s/render/d-solo/%s/%s?var-hostname=%s&var-service=%s&var-command=%s%s&panelId=%s&orgId=%s&width=%s&height=%s&theme=%s&from=%s&to=%s',
'%s://%s/render/d-solo/%s/%s?var-hostname=%s&var-type=%s&var-service=%s&var-command=%s%s&panelId=%s&orgId=%s&width=%s&height=%s&theme=%s&from=%s&to=%s',
$this->protocol,
$this->grafanaHost,
$this->dashboarduid,
$this->dashboard,
rawurlencode($hostName),
rawurlencode($graphType),
rawurlencode($serviceName),
rawurlencode($this->object->check_command),
$this->customVars,
Expand All @@ -319,14 +337,14 @@ private function getMyimageHtml($serviceName, $hostName, &$imageHtml)
urlencode($this->timerangeto)
);
} else {

$this->pngUrl = sprintf(
'%s://%s/render/dashboard-solo/%s/%s?var-hostname=%s&var-service=%s&var-command=%s%s&panelId=%s&orgId=%s&width=%s&height=%s&theme=%s&from=%s&to=%s',
'%s://%s/render/dashboard-solo/%s/%s?var-hostname=%s&var-type=%s&var-service=%s&var-command=%s%s&panelId=%s&orgId=%s&width=%s&height=%s&theme=%s&from=%s&to=%s',
$this->protocol,
$this->grafanaHost,
$this->dashboardstore,
$this->dashboard,
rawurlencode($hostName),
rawurlencode($graphType),
rawurlencode($serviceName),
rawurlencode($this->object->check_command),
$this->customVars,
Expand All @@ -353,7 +371,9 @@ private function getMyimageHtml($serviceName, $hostName, &$imageHtml)
);

if ($this->authentication == "token") {
$curl_opts[CURLOPT_HTTPHEADER] = array('Content-Type: application/json' , "Authorization: Bearer ". $this->apiToken);
$curl_opts[CURLOPT_HTTPHEADER] = array(
'Content-Type: application/json',
"Authorization: Bearer ". $this->apiToken);
} else {
$curl_opts[CURLOPT_USERPWD] = "$this->myAuth";
}
Expand All @@ -366,7 +386,7 @@ private function getMyimageHtml($serviceName, $hostName, &$imageHtml)
if ($res === false) {
$imageHtml .=$this->translate('Cannot fetch graph with curl') .': '. curl_error($curl_handle). '.';

//provide a hint for 'Failed to connect to ...: Permission denied'
// provide a hint for 'Failed to connect to ...: Permission denied'
if (curl_errno($curl_handle) == 7) {
$imageHtml .= $this->translate(' Check SELinux/Firewall.');
}
Expand All @@ -384,4 +404,4 @@ private function getMyimageHtml($serviceName, $hostName, &$imageHtml)
$imageHtml = $res;
return true;
}
}
}
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