Implement content checker

composer.json

@@ -1,5 +1,5 @@
 {
-    "name": "nickel715/websiteMonitoring",
+    "name": "nickel715/website-monitoring",
     "description": "",
     "license": "MIT",
     "authors": [

config.php.dist

@@ -10,20 +10,22 @@ return [
         [
             'url'     => '',
             'checker' => [
-                'page-exists'          => [
+                'page-exists'       => [
                     'pages' => $privatePages,
                 ],
-                'robots-txt'           => [
+                'robots-txt'        => [
                     'disallows' => $privatePages,
                 ],
-                'sitemap-blacklist'    => [
+                'sitemap-blacklist' => [
                     'path'      => 'sitemap.xml',
                     'blacklist' => $privatePages,
                 ],
-                'text-or-html-present' => [
+                'content'           => [
                     [
-                        'page' => '/',
-                        'text' => 'copyright',
+                        'page'             => '/',
+                        'text_present'     => 'copyright',
+                        'html_present'     => ['<h1>', '<h2>'],
+                        'text_not_present' => 'debug',
                     ],
                 ],
             ],

console

@@ -4,6 +4,7 @@
 require_once 'vendor/autoload.php';
 
 use Interop\Container\ContainerInterface;
+use WebsiteMonitoring\Checker\Content;
 use WebsiteMonitoring\Checker\PageExists;
 use WebsiteMonitoring\Checker\RobotsTxt;
 use WebsiteMonitoring\Checker\SitemapBlacklist;
@@ -20,6 +21,7 @@ $serviceManager->setFactory(CheckerPluginManager::class, function (ContainerInte
             'page-exists'       => PageExists::class,
             'robots-txt'        => RobotsTxt::class,
             'sitemap-blacklist' => SitemapBlacklist::class,
+            'content'           => Content::class,
         ],
     ]);
 });

src/Checker/Content.php

@@ -0,0 +1,86 @@
+<?php
+
+namespace WebsiteMonitoring\Checker;
+
+use WebsiteMonitoring\WebsiteConfig;
+use Zend\Http\Client;
+
+class Content implements CheckerInterface
+{
+    public function check(WebsiteConfig $config, array $checkerConfig = [])
+    {
+        $failures = [];
+        foreach ($checkerConfig as $page) {
+            if (empty($page['page'])) {
+                $failures[] = 'Config error, no page defined';
+                continue;
+            }
+            $link = $config->getUrl() . $page['page'];
+            $response = (new Client($link))->send();
+            if (!$response->isOk()) {
+                $failures = array_merge($failures, [
+                    'Can not request the sitemap at ' . $link . '.',
+                    'The following error occurs: ' . $response->getStatusCode() . ' ' . $response->getReasonPhrase(),
+                ]);
+            }
+            $failures = array_merge($failures, $this->checkPage($response->getBody(), $page));
+        }
+        return $failures;
+    }
+
+    private function checkPage($html, array $pageConfig)
+    {
+        $failures = [];
+        $text = strip_tags(html_entity_decode($html));
+        if (!empty($pageConfig['text_present'])) {
+            foreach ((array)$pageConfig['text_present'] as $item) {
+                strpos($text, $item) === false
+                    && $failures[] = 'Can not find ' . $item . ' on page ' . $pageConfig['page'];
+            }
+        }
+        if (!empty($pageConfig['text_not_present'])) {
+            foreach ((array)$pageConfig['text_not_present'] as $item) {
+                strpos($text, $item) !== false
+                    && $failures[] = 'Found ' . $item . ' on page ' . $pageConfig['page'];
+            }
+        }
+        if (!empty($pageConfig['html_present'])) {
+            foreach ((array)$pageConfig['html_present'] as $item) {
+                strpos($html, $item) === false
+                    && $failures[] = 'Can not find  ' . $item . ' on page ' . $pageConfig['page'];
+            }
+        }
+        if (!empty($pageConfig['html_not_present'])) {
+            foreach ((array)$pageConfig['html_not_present'] as $item) {
+                strpos($html, $item) !== false
+                && $failures[] = 'Found ' . $item . ' on page ' . $pageConfig['page'];
+            }
+        }
+        return $failures;
+    }
+
+    public function parse(WebsiteConfig $config, array $checkerConfig = [])
+    {
+        $result = [];
+
+        foreach ($checkerConfig as $page) {
+            if (empty($page['page'])) {
+                return 'Config error, no page defined';
+            }
+            $result[] = 'Check page ' . $page['page'];
+            if (!empty($page['text_present'])) {
+                $result[] = 'For following text(s) are present: ' . implode(', ', (array)$page['text_present']);
+            }
+            if (!empty($page['text_not_present'])) {
+                $result[] = 'For following text(s) are not present: ' . implode(', ', (array)$page['text_not_present']);
+            }
+            if (!empty($page['html_present'])) {
+                $result[] = 'For following html are present: ' . implode(', ', (array)$page['html_present']);
+            }
+            if (!empty($page['html_not_present'])) {
+                $result[] = 'For following html are not present: ' . implode(', ', (array)$page['html_not_present']);
+            }
+            return $result;
+        }
+    }
+}