Completed
Push — master ( a68a80...9b6067 )
by Nicolas
21s
created

ContentProxy::setEntryDomainName()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 7
Code Lines 4

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 7
rs 9.4285
c 0
b 0
f 0
cc 2
eloc 4
nc 2
nop 1
1
<?php
2
3
namespace Wallabag\CoreBundle\Helper;
4
5
use Graby\Graby;
6
use Psr\Log\LoggerInterface;
7
use Symfony\Component\HttpFoundation\File\MimeType\MimeTypeExtensionGuesser;
8
use Symfony\Component\Validator\Constraints\Locale as LocaleConstraint;
9
use Symfony\Component\Validator\Constraints\Url as UrlConstraint;
10
use Symfony\Component\Validator\Validator\ValidatorInterface;
11
use Wallabag\CoreBundle\Entity\Entry;
12
use Wallabag\CoreBundle\Tools\Utils;
13
14
/**
15
 * This kind of proxy class take care of getting the content from an url
16
 * and update the entry with what it found.
17
 */
18
class ContentProxy
19
{
20
    protected $graby;
21
    protected $tagger;
22
    protected $validator;
23
    protected $logger;
24
    protected $mimeGuesser;
25
    protected $fetchingErrorMessage;
26
    protected $eventDispatcher;
27
    protected $storeArticleHeaders;
28
29
    public function __construct(Graby $graby, RuleBasedTagger $tagger, ValidatorInterface $validator, LoggerInterface $logger, $fetchingErrorMessage, $storeArticleHeaders = false)
30
    {
31
        $this->graby = $graby;
32
        $this->tagger = $tagger;
33
        $this->validator = $validator;
34
        $this->logger = $logger;
35
        $this->mimeGuesser = new MimeTypeExtensionGuesser();
36
        $this->fetchingErrorMessage = $fetchingErrorMessage;
37
        $this->storeArticleHeaders = $storeArticleHeaders;
38
    }
39
40
    /**
41
     * Update entry using either fetched or provided content.
42
     *
43
     * @param Entry  $entry                Entry to update
44
     * @param string $url                  Url of the content
45
     * @param array  $content              Array with content provided for import with AT LEAST keys title, html, url to skip the fetchContent from the url
46
     * @param bool   $disableContentUpdate Whether to skip trying to fetch content using Graby
47
     */
48
    public function updateEntry(Entry $entry, $url, array $content = [], $disableContentUpdate = false)
49
    {
50
        if (!empty($content['html'])) {
51
            $content['html'] = $this->graby->cleanupHtml($content['html'], $url);
52
        }
53
54
        if ((empty($content) || false === $this->validateContent($content)) && false === $disableContentUpdate) {
55
            $fetchedContent = $this->graby->fetchContent($url);
56
57
            // when content is imported, we have information in $content
58
            // in case fetching content goes bad, we'll keep the imported information instead of overriding them
59
            if (empty($content) || $fetchedContent['html'] !== $this->fetchingErrorMessage) {
60
                $content = $fetchedContent;
61
            }
62
        }
63
64
        // be sure to keep the url in case of error
65
        // so we'll be able to refetch it in the future
66
        $content['url'] = !empty($content['url']) ? $content['url'] : $url;
67
68
        $this->stockEntry($entry, $content);
69
    }
70
71
    /**
72
     * Use a Symfony validator to ensure the language is well formatted.
73
     *
74
     * @param Entry  $entry
75
     * @param string $value Language to validate and save
76
     */
77
    public function updateLanguage(Entry $entry, $value)
78
    {
79
        // some lang are defined as fr-FR, es-ES.
80
        // replacing - by _ might increase language support
81
        $value = str_replace('-', '_', $value);
82
83
        $errors = $this->validator->validate(
84
            $value,
85
            (new LocaleConstraint())
86
        );
87
88
        if (0 === count($errors)) {
89
            $entry->setLanguage($value);
90
91
            return;
92
        }
93
94
        $this->logger->warning('Language validation failed. ' . (string) $errors);
95
    }
96
97
    /**
98
     * Use a Symfony validator to ensure the preview picture is a real url.
99
     *
100
     * @param Entry  $entry
101
     * @param string $value URL to validate and save
102
     */
103
    public function updatePreviewPicture(Entry $entry, $value)
104
    {
105
        $errors = $this->validator->validate(
106
            $value,
107
            (new UrlConstraint())
108
        );
109
110
        if (0 === count($errors)) {
111
            $entry->setPreviewPicture($value);
112
113
            return;
114
        }
115
116
        $this->logger->warning('PreviewPicture validation failed. ' . (string) $errors);
117
    }
118
119
    /**
120
     * Update date.
121
     *
122
     * @param Entry  $entry
123
     * @param string $value Date to validate and save
124
     */
125
    public function updatePublishedAt(Entry $entry, $value)
126
    {
127
        $date = $value;
128
129
        // is it a timestamp?
130
        if (false !== filter_var($date, FILTER_VALIDATE_INT)) {
131
            $date = '@' . $date;
132
        }
133
134
        try {
135
            // is it already a DateTime?
136
            // (it's inside the try/catch in case of fail to be parse time string)
137
            if (!$date instanceof \DateTime) {
138
                $date = new \DateTime($date);
139
            }
140
141
            $entry->setPublishedAt($date);
142
        } catch (\Exception $e) {
143
            $this->logger->warning('Error while defining date', ['e' => $e, 'url' => $entry->getUrl(), 'date' => $value]);
144
        }
145
    }
146
147
    /**
148
     * Helper to extract and save host from entry url.
149
     *
150
     * @param Entry $entry
151
     */
152
    public function setEntryDomainName(Entry $entry)
153
    {
154
        $domainName = parse_url($entry->getUrl(), PHP_URL_HOST);
155
        if (false !== $domainName) {
156
            $entry->setDomainName($domainName);
157
        }
158
    }
159
160
    /**
161
     * Helper to set a default title using:
162
     * - url basename, if applicable
163
     * - hostname.
164
     *
165
     * @param Entry $entry
166
     */
167
    public function setDefaultEntryTitle(Entry $entry)
168
    {
169
        $url = parse_url($entry->getUrl());
170
        $path = pathinfo($url['path'], PATHINFO_BASENAME);
171
172
        if (empty($path)) {
173
            $path = $url['host'];
174
        }
175
176
        $entry->setTitle($path);
177
    }
178
179
    /**
180
     * Stock entry with fetched or imported content.
181
     * Will fall back to OpenGraph data if available.
182
     *
183
     * @param Entry $entry   Entry to stock
184
     * @param array $content Array with at least title, url & html
185
     */
186
    private function stockEntry(Entry $entry, array $content)
187
    {
188
        $entry->setUrl($content['url']);
189
190
        $this->setEntryDomainName($entry);
191
192
        if (!empty($content['title'])) {
193
            $entry->setTitle($content['title']);
194
        } elseif (!empty($content['open_graph']['og_title'])) {
195
            $entry->setTitle($content['open_graph']['og_title']);
196
        }
197
198
        $html = $content['html'];
199
        if (false === $html) {
200
            $html = $this->fetchingErrorMessage;
201
202
            if (!empty($content['open_graph']['og_description'])) {
203
                $html .= '<p><i>But we found a short description: </i></p>';
204
                $html .= $content['open_graph']['og_description'];
205
            }
206
        }
207
208
        $entry->setContent($html);
209
        $entry->setReadingTime(Utils::getReadingTime($html));
210
211
        if (!empty($content['status'])) {
212
            $entry->setHttpStatus($content['status']);
213
        }
214
215
        if (!empty($content['authors']) && is_array($content['authors'])) {
216
            $entry->setPublishedBy($content['authors']);
217
        }
218
219
        if (!empty($content['all_headers']) && $this->storeArticleHeaders) {
220
            $entry->setHeaders($content['all_headers']);
221
        }
222
223
        if (!empty($content['date'])) {
224
            $this->updatePublishedAt($entry, $content['date']);
225
        }
226
227
        if (!empty($content['language'])) {
228
            $this->updateLanguage($entry, $content['language']);
229
        }
230
231
        if (!empty($content['open_graph']['og_image'])) {
232
            $this->updatePreviewPicture($entry, $content['open_graph']['og_image']);
233
        }
234
235
        // if content is an image, define it as a preview too
236
        if (!empty($content['content_type']) && in_array($this->mimeGuesser->guess($content['content_type']), ['jpeg', 'jpg', 'gif', 'png'], true)) {
237
            $this->updatePreviewPicture($entry, $content['url']);
238
        }
239
240
        if (!empty($content['content_type'])) {
241
            $entry->setMimetype($content['content_type']);
242
        }
243
244
        try {
245
            $this->tagger->tag($entry);
246
        } catch (\Exception $e) {
247
            $this->logger->error('Error while trying to automatically tag an entry.', [
248
                'entry_url' => $content['url'],
249
                'error_msg' => $e->getMessage(),
250
            ]);
251
        }
252
    }
253
254
    /**
255
     * Validate that the given content has at least a title, an html and a url.
256
     *
257
     * @param array $content
258
     *
259
     * @return bool true if valid otherwise false
260
     */
261
    private function validateContent(array $content)
262
    {
263
        return !empty($content['title']) && !empty($content['html']) && !empty($content['url']);
264
    }
265
}
266