Add static image charts

classes/report_formats/ImagechartReportFormat.php

@@ -0,0 +1,52 @@
+<?php
+class ImagechartReportFormat extends ReportFormatBase {
+    public static function display(&$report, &$request) {
+        if(!$report->options['has_charts']) return;
+
+        $cachekey = FileSystemCache::generateCacheKey($report->getCacheKeyParameters(),'imagecharts');
+
+        $result = FileSystemCache::retrieve($cachekey);
+        if(!$result) {
+            // Generate phantomjs command
+            $pwd = trim(shell_exec('pwd'));
+            $cmd = "phantomjs ".$pwd."/lib/phantomjs/chart.js";
+            $cmd .= " ".escapeshellarg(PhpReports::$request->base);
+            $cmd .= " ".escapeshellarg($report->report);
+            $cmd .= " ".escapeshellarg($_SERVER['QUERY_STRING']);
+
+            // Determine viewport width/height
+            $fullwidth = isset($_REQUEST['width'])? $_REQUEST['width'] : 1024;
+            $width = 0;
+            $height = 0;
+            foreach($report->options['Charts'] as $chart) {
+                if(preg_match('/\%$/',$chart['width'])) $width = max($width,substr($chart['width'],0,-1)/100*$fullwidth);
+                else $width = max($width,preg_replace('/^([0-9]+)([^0-9].*)?$/','$1',$chart['width']));
+                $height += preg_replace('/^([0-9]+)([^0-9].*)?$/','$1',$chart['height'])*1;
+            }
+            $cmd .= " ".floor($width)." ".floor($height);
+
+            // Generate temporary filename in cache directory
+            if(!file_exists($pwd.'/cache/phatomjs/')) mkdir($pwd.'/cache/phantomjs/',0777,true);
+            $filename = $pwd.'/cache/phantomjs/'.preg_replace('/\//','.',$report->report).'.'.date('Y-m-d_H-i-s').'.png';
+            $cmd .= " ".escapeshellarg($filename);
+
+            // Take the screenshot with phantomjs
+            shell_exec($cmd);
+
+            // Trim transparent border and whitespace
+            shell_exec('mogrify -trim +repage -trim +repage '.$filename);
+
+            // Cache result and delete image file
+            $result = file_get_contents($filename);
+            unlink($filename);
+            FileSystemCache::store($cachekey, base64_encode($result), 600);
+        }
+        else {
+            $result = base64_decode($result);
+        }
+
+        // Output image
+        header('Content-Type: image/png');
+        echo $result;
+    }
+}

lib/PhpReports/PhpReports.php

@@ -468,11 +468,13 @@ public static function emailReport() {
 		$csv_link = str_replace('report/html/?','report/csv/?',$link);
 		$table_link = str_replace('report/html/?','report/table/?',$link);
 		$text_link = str_replace('report/html/?','report/text/?',$link);
+                $chart_link = str_replace('report/html/?','report/imagechart/?',$link);
 
-		// Get the CSV file attachment and the inline HTML table
+		// Get the CSV file attachment, the inline HTML table, and any chart images
 		$csv = self::urlDownload($csv_link);
 		$table = self::urlDownload($table_link);
 		$text = self::urlDownload($text_link);
+                $chart = self::urlDownload($chart_link);
 
 		$email_text = $body."\n\n".$text."\n\nView the report online at $link";
 		$email_html = "<p>$body</p>$table<p>View the report online at <a href=\"".htmlentities($link)."\">".htmlentities($link)."</a></p>";
@@ -488,14 +490,24 @@ public static function emailReport() {
 		  ->addPart($email_html, 'text/html')
 		;
 
+                // CSV
 		$attachment = Swift_Attachment::newInstance()
 			->setFilename('report.csv')
 			->setContentType('text/csv')
 			->setBody($csv)
 		;
-
 		$message->attach($attachment);
 
+                // Charts
+                if($chart) {
+                        $attachment = Swift_Attachment::newInstance()
+                                ->setFilename('charts.png')
+                                ->setContentType('image/png')
+                                ->setBody($chart)
+                        ;
+                        $message->attach($attachment);
+                }
+
 		// Create the Transport
 		$transport = self::getMailTransport();
 		$mailer = Swift_Mailer::newInstance($transport);

lib/PhpReports/Report.php

@@ -103,13 +103,15 @@ public function addMacro($name, $value) {
 	public function exportHeader($name,$params) {
 		$this->exported_headers[] = array('name'=>$name,'params'=>$params);
 	}
-
+	public function getCacheKeyParameters() {
+            return array(
+                'report'=>$this->report,
+                'macros'=>$this->macros,
+                'database'=>$this->options['Environment']
+            );
+        }
 	public function getCacheKey() {
-		return FileSystemCache::generateCacheKey(array(
-			'report'=>$this->report,
-			'macros'=>$this->macros,
-			'database'=>$this->options['Environment']
-		),'report_results');
+		return FileSystemCache::generateCacheKey($this->getCacheKeyParameters(),'report_results');
 	}
 	public function getReportTimesCacheKey() {
 		return FileSystemCache::generateCacheKey($this->report,'report_times');

lib/PhpReports/ReportFormatBase.php

@@ -1,6 +1,8 @@
 <?php
 abstract class ReportFormatBase {
-	abstract public static function display(&$report, &$request);
+	public static function display(&$report, &$request) {
+
+        }
 
 	public static function prepareReport($report) {
 		$environment = $_SESSION['environment'];

lib/PhpReports/ReportTypeBase.php

@@ -16,5 +16,7 @@ public static function getVariableOptions($params, &$report) {
 		return array();
 	}
 
-	abstract public static function run(&$report);
+	public static function run(&$report) {
+
+        }
 }

lib/phantomjs/chart.js

@@ -0,0 +1,17 @@
+var page = require('webpage').create();
+var args = require('system').args;
+
+var host = args[1];
+var report = args[2];
+var querystring = args[3];
+var width = args[4];
+var height = args[5];
+var filename = args[6];
+
+var url = host.replace(/\/$/,'')+"/report/chart/?report="+report+"&"+querystring;
+
+page.viewportSize = {width: width, height: height};
+page.open(url, function() {
+  page.render(filename);
+  phantom.exit();
+});