xref: /webtrees/app/Module/ModuleAnalyticsTrait.php (revision 57ab22314b2599feb432b1a1ed71643cfc2f0452) 
1<?php
2/**
3 * webtrees: online genealogy
4 * Copyright (C) 2019 webtrees development team
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16declare(strict_types=1);
17
18namespace Fisharebest\Webtrees\Module;
19
20use Fig\Http\Message\StatusCodeInterface;
21use Fisharebest\Webtrees\I18N;
22use Psr\Http\Message\ResponseInterface;
23use Psr\Http\Message\ServerRequestInterface;
24use function app;
25
26/**
27 * Trait ModuleAnalyticsTrait - default implementation of ModuleAnalyticsInterface
28 */
29trait ModuleAnalyticsTrait
30{
31    /**
32     * Should we add this tracker?
33     *
34     * @return bool
35     */
36    public function analyticsCanShow(): bool
37    {
38        $request = app(ServerRequestInterface::class);
39
40        // If the browser sets the DNT header, then we won't use analytics.
41        $dnt = $request->getServerParams()['HTTP_DNT'] ?? '';
42
43        if ($dnt === '1') {
44            return false;
45        }
46
47        foreach ($this->analyticsParameters() as $parameter) {
48            if ($parameter === '') {
49                return false;
50            }
51        }
52
53        return true;
54    }
55
56    /**
57     * The parameters that need to be embedded in the snippet.
58     *
59     * @return string[]
60     */
61    public function analyticsParameters(): array
62    {
63        return [];
64    }
65
66    /**
67     * A sentence describing what this module does.
68     *
69     * @return string
70     */
71    public function description(): string
72    {
73        return I18N::translate('Tracking and analytics');
74    }
75
76    /**
77     * @param ServerRequestInterface $request
78     *
79     * @return ResponseInterface
80     */
81    public function getAdminAction(ServerRequestInterface $request): ResponseInterface
82    {
83        $this->layout = 'layouts/administration';
84
85        return $this->viewResponse('admin/analytics-edit', [
86            'form_fields' => $this->analyticsFormFields(),
87            'preview'     => $this->analyticsSnippet($this->analyticsParameters()),
88            'title'       => $this->title(),
89        ]);
90    }
91
92    /**
93     * @param string  $view_name
94     * @param mixed[] $view_data
95     * @param int     $status
96     *
97     * @return ResponseInterface
98     */
99    abstract protected function viewResponse(string $view_name, array $view_data, $status = StatusCodeInterface::STATUS_OK): ResponseInterface;
100
101    /**
102     * Form fields to edit the parameters.
103     *
104     * @return string
105     */
106    public function analyticsFormFields(): string
107    {
108        return '';
109    }
110
111    /**
112     * Embed placeholders in the snippet.
113     *
114     * @param string[] $parameters
115     *
116     * @return string
117     */
118    public function analyticsSnippet(array $parameters): string
119    {
120        return '';
121    }
122
123    /**
124     * How should this module be identified in the control panel, etc.?
125     *
126     * @return string
127     */
128    abstract public function title(): string;
129
130    /**
131     * @param ServerRequestInterface $request
132     *
133     * @return ResponseInterface
134     */
135    public function postAdminAction(ServerRequestInterface $request): ResponseInterface
136    {
137        foreach (array_keys($this->analyticsParameters()) as $parameter) {
138            $new_value = $request->getParsedBody()[$parameter];
139
140            $this->setPreference($parameter, $new_value);
141        }
142
143        return redirect(route('analytics'));
144    }
145
146    /**
147     * Set a module setting.
148     * Since module settings are NOT NULL, setting a value to NULL will cause
149     * it to be deleted.
150     *
151     * @param string $setting_name
152     * @param string $setting_value
153     *
154     * @return void
155     */
156    abstract public function setPreference(string $setting_name, string $setting_value): void;
157}
158