From c855c2fc88213d285c14141f62ce6e06e2948634 Mon Sep 17 00:00:00 2001
From: floppy0 <31189947+floppy0@users.noreply.github.com>
Date: Fri, 23 Mar 2018 15:07:06 +0100
Subject: [PATCH] Google Analytics with EU GDPR

---
 bl-plugins/google-analytics/languages/en.json |  14 +++
 bl-plugins/google-analytics/metadata.json     |  10 ++
 bl-plugins/google-analytics/plugin.php        | 113 ++++++++++++++++++
 3 files changed, 137 insertions(+)
 create mode 100644 bl-plugins/google-analytics/languages/en.json
 create mode 100644 bl-plugins/google-analytics/metadata.json
 create mode 100644 bl-plugins/google-analytics/plugin.php

diff --git a/bl-plugins/google-analytics/languages/en.json b/bl-plugins/google-analytics/languages/en.json
new file mode 100644
index 00000000..0851e093
--- /dev/null
+++ b/bl-plugins/google-analytics/languages/en.json
@@ -0,0 +1,14 @@
+{
+	"plugin-data":
+	{
+		"name": "Google Analytics",
+		"description": "This plugin generates the necessary code for the following Google tools: Google Analytics, Google Tag Manager and Google Site Verification HTML Tag."
+	},
+
+	"google-webmasters-tools": "Google Webmasters tools",
+	"google-analytics-tracking-id": "Google Analytics Tracking ID",
+	"google-tag-manager": "Google Tag Manager",
+	"complete-this-field-with-the-google-site-verification": "Complete this field with the Google Site verification to verify the site owner.",
+	"complete-this-field-with-the-tracking-id": "Complete this field with the Tracking ID to generate the Javascript tracking code for Google Analytics.",
+	"complete-this-field-with-the-tracking-id-google-tag": "Complete this field with the Tracking ID to generate the Javascript tracking code for Google Tag Manager."
+}
\ No newline at end of file
diff --git a/bl-plugins/google-analytics/metadata.json b/bl-plugins/google-analytics/metadata.json
new file mode 100644
index 00000000..13635940
--- /dev/null
+++ b/bl-plugins/google-analytics/metadata.json
@@ -0,0 +1,10 @@
+{
+	"author": "Bludit",
+	"email": "",
+	"website": "https://plugins.bludit.com",
+	"version": "2.3",
+	"releaseDate": "2018-01-23",
+	"license": "MIT",
+	"compatible": "2.3",
+	"notes": ""
+}
\ No newline at end of file
diff --git a/bl-plugins/google-analytics/plugin.php b/bl-plugins/google-analytics/plugin.php
new file mode 100644
index 00000000..5f51f201
--- /dev/null
+++ b/bl-plugins/google-analytics/plugin.php
@@ -0,0 +1,113 @@
+<?php
+
+class pluginGoogleAnalytics extends Plugin {
+
+	public function init()
+	{
+		$this->dbFields = array(
+			'EUGDPR'=>true,
+			'trackingID'=>''
+		);
+	}
+
+	public function form()
+	{
+		global $Language;
+
+		$html  = '<div>';
+		$html .= '<label for="jstrackingID">'.$Language->get('Google Analytics Tracking ID').'</label>';
+		$html .= '<input id="jstrackingID" type="text" name="trackingID" value="'.$this->getValue('trackingID').'">';
+		$html .= '<span class="tip">'.$Language->get('complete-this-field-with-the-tracking-id').'</span>';
+		$html .= '</div>';
+
+		$html .= '<div>';
+		$html .= '<label>EU General Data Protection</label>';
+		$html .= '<select name="EUGDPR">';
+		$html .= '<option value="true" '.($this->getValue('EUGDPR')===true?'selected':'').'>'.$Language->get('Enabled').'</option>';
+		$html .= '<option value="false" '.($this->getValue('EUGDPR')===false?'selected':'').'>'.$Language->get('Disabled').'</option>';
+		$html .= '</select>';
+		$html .= '<span class="tip">Show the consent to the user before loading the script of Google Analytics. The user can reject be tracked for Google Analytics.</span>';
+		$html .= '</div>';
+
+		return $html;
+	}
+
+	public function siteHead()
+	{
+		$html = '<style>
+				#pluginGoogleAnalytics {
+					display: block;
+					position: fixed;
+					top: 0;
+					background: #eee;
+					padding: 2px 10px;
+					font-size: 1em;
+					color: #555;
+					z-index: 2000;
+					width: 100%;
+					padding: 30px;
+					text-align: center;
+					border-bottom: 1px solid #999;
+				}
+
+				#pluginGoogleAnalytics div.buttons {
+					margin-top: 10px;
+				}
+
+				#pluginGoogleAnalytics button {
+					margin-right: 10px;
+				}
+			}
+			</style>';
+
+		return $html;
+	}
+
+	public function siteBodyBegin()
+	{
+		$script = '
+			<script>
+			function executeGoogleAnalytics() {
+
+				var s = document.createElement("script");
+				s.src = "https://www.googletagmanager.com/gtag/js?id='.$this->getValue('trackingID').'";
+				document.body.appendChild(s);
+
+				var s = document.createElement("script");
+				s.text = \'window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag("js", new Date()); gtag("config", "'.$this->getValue('trackingID').'");\';
+				document.body.appendChild(s);
+
+				hideGoogleAnalyticsDialog();
+			}
+
+			function hideGoogleAnalyticsDialog() {
+				document.getElementById("pluginGoogleAnalytics").style.display = "none";
+			}
+
+			</script>
+		';
+
+		if ($this->getValue('EUGDPR')) {
+			$html  = '<div id="pluginGoogleAnalytics">';
+			$html .= '<div>Allow to Google Analytics tracking you?</div>';
+			$html .= '<div class="buttons">';
+			$html .= '<button id="pluginGoogleAnalytics_allowButton">Allow</button>';
+			$html .= '<button id="pluginGoogleAnalytics_denyButton">Deny</button>';
+			$html .= '</div>';
+			$html .= '</div>';
+		} else {
+			$html = '<script> window.onload=function() { executeGoogleAnalytics(); }</script>';
+		}
+
+		$script .= '
+			<script>
+			window.onload=function() {
+				document.getElementById("pluginGoogleAnalytics_allowButton").addEventListener("click", executeGoogleAnalytics);
+				document.getElementById("pluginGoogleAnalytics_denyButton").addEventListener("click", hideGoogleAnalyticsDialog);
+			}
+			</script>
+		';
+
+		return $script.$html;
+	}
+}