Thumbnailer::thumbnailDownload() - Code Metrics - Inspection of "Merge pull request #22 from ArthurHoaro/feature/co..." - ArthurHoaro/web-thumbnailer - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 670224...062404 )

by Arthur

created 2020-02-09 10:10 UTC

Thumbnailer::thumbnailDownload() B

↳ Parent: Thumbnailer

Complexity

Conditions	6
Paths	5

Size

Total Lines	58
Code Lines	34

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	6
eloc	34
c	1
b	0
f	0
nc	5
nop	1
dl	0
loc	58
rs	8.7537

How to fix Long Method

<?php

declare(strict_types=1);

namespace WebThumbnailer\Application;

use WebThumbnailer\Application\WebAccess\WebAccessFactory;
use WebThumbnailer\Exception\BadRulesException;
use WebThumbnailer\Exception\CacheException;
use WebThumbnailer\Exception\DownloadException;
use WebThumbnailer\Exception\ImageConvertException;
use WebThumbnailer\Exception\IOException;
use WebThumbnailer\Exception\MissingRequirementException;
use WebThumbnailer\Exception\NotAnImageException;
use WebThumbnailer\Exception\ThumbnailNotFoundException;
use WebThumbnailer\Finder\Finder;
use WebThumbnailer\Finder\FinderFactory;
use WebThumbnailer\Utils\ApplicationUtils;
use WebThumbnailer\Utils\ImageUtils;
use WebThumbnailer\Utils\SizeUtils;
use WebThumbnailer\WebThumbnailer;

/**
 * Main application class, it will:
 *   - retrieve the thumbnail URL using the approriate finder,
 *   - in download mode, download the thumb and resize it,
 *   - use the cache.
 */
class Thumbnailer
{
    /** @var string Array key for download type option. */
    protected const DL_OPTION = 'dl';

    /** @var string User given URL, from where to generate a thumbnail. */
    protected $url;

    /** @var Finder instance. */
    protected $finder;

    /** @var mixed[] Thumbnailer user options. */
    protected $options;

    /** @var mixed[] .$_SERVER */
    protected $server;

    /**
     * @param string       $url     User given URL, from where to generate a thumbnail.
     * @param mixed[]      $options Thumbnailer user options.
     * @param mixed[]|null $server  $_SERVER.
     *
     * @throws MissingRequirementException
     * @throws BadRulesException
     * @throws IOException
     */
    public function __construct(string $url, array $options, ?array $server)
    {
        ApplicationUtils::checkExtensionRequirements(['gd']);
        ApplicationUtils::checkPHPVersion('5.6', PHP_VERSION);

        $this->url = $url;
        $this->server = $server;
        $this->finder = FinderFactory::getFinder($url);
        $this->finder->setUserOptions($options);
        $this->setOptions($options);
    }

    /**
     * Set Thumbnailer options from user input.
     *
     * @param mixed[] $options User options array.
     *
     * @throws BadRulesException
     * @throws IOException
     */
    protected function setOptions(array $options): void
    {
        static::checkOptions($options);

        $this->options[static::DL_OPTION] = ConfigManager::get('settings.default.download_mode', 'DOWNLOAD');

        foreach ($options as $key => $value) {
            // Download option.
            if (
                $value === WebThumbnailer::DOWNLOAD
                || $value === WebThumbnailer::HOTLINK
                || $value === WebThumbnailer::HOTLINK_STRICT
            ) {
                $this->options[static::DL_OPTION] = $value;
                break;
            }
        }

        // DL size option
        if (
            isset($options[WebThumbnailer::DOWNLOAD_MAX_SIZE])
            && is_int($options[WebThumbnailer::DOWNLOAD_MAX_SIZE])
        ) {
            $this->options[WebThumbnailer::DOWNLOAD_MAX_SIZE] = $options[WebThumbnailer::DOWNLOAD_MAX_SIZE];
        } else {
            $maxdl = ConfigManager::get('settings.default.max_img_dl', 4194304);
            $this->options[WebThumbnailer::DOWNLOAD_MAX_SIZE] = $maxdl;
        }

        // DL timeout option
        if (
            isset($options[WebThumbnailer::DOWNLOAD_TIMEOUT])
            && is_int($options[WebThumbnailer::DOWNLOAD_TIMEOUT])
        ) {
            $this->options[WebThumbnailer::DOWNLOAD_TIMEOUT] = $options[WebThumbnailer::DOWNLOAD_TIMEOUT];
        } else {
            $timeout = ConfigManager::get('settings.default.timeout', 30);
            $this->options[WebThumbnailer::DOWNLOAD_TIMEOUT] = $timeout;
        }

        if (isset($options[WebThumbnailer::NOCACHE])) {
            $this->options[WebThumbnailer::NOCACHE] = $options[WebThumbnailer::NOCACHE];
        }

        if (isset($options[WebThumbnailer::CROP])) {
            $this->options[WebThumbnailer::CROP] = $options[WebThumbnailer::CROP];
        } else {
            $this->options[WebThumbnailer::CROP] = false;
        }

        if (isset($options[WebThumbnailer::DEBUG])) {
            $this->options[WebThumbnailer::DEBUG] = $options[WebThumbnailer::DEBUG];
        } else {
            $this->options[WebThumbnailer::DEBUG] = false;
        }

        // Image size
        $this->setSizeOptions($options);
    }

    /**
     * Make sure user options are coherent.
     *   - Only one thumb mode can be defined.
     *
     * @param mixed[] $options User options array.
     *
     * @return bool True if the check is successful.
     *
     * @throws BadRulesException Invalid options.
     */
    protected static function checkOptions(array $options): bool
    {
        $incompatibleFlagsList = [
            [WebThumbnailer::DOWNLOAD, WebThumbnailer::HOTLINK, WebThumbnailer::HOTLINK_STRICT],
        ];

        foreach ($incompatibleFlagsList as $incompatibleFlags) {
            if (count(array_intersect($incompatibleFlags, $options)) > 1) {
                $error = 'Only one of these flags can be set between: ';
                foreach ($incompatibleFlags as $flag) {
                    $error .= $flag . ' ';
                }
                throw new BadRulesException($error);
            }
        }

        return true;
    }

    /**
     * Set specific size option, allowing 'meta' size SMALL, MEDIUM, etc.
     *
     * @param mixed[] $options User options array.
     *
     * @throws BadRulesException
     * @throws IOException
     */
    protected function setSizeOptions(array $options): void
    {
        foreach ([WebThumbnailer::MAX_WIDTH, WebThumbnailer::MAX_HEIGHT] as $parameter) {
            $value = 0;
            if (!empty($options[$parameter])) {
                if (SizeUtils::isMetaSize((string) $options[$parameter])) {
                    $value = SizeUtils::getMetaSize((string) $options[$parameter]);
                } elseif (is_int($options[$parameter]) || ctype_digit($options[$parameter])) {
                    $value = $options[$parameter];
                }
            }

            $this->options[$parameter] = $value;
        }

        if ($this->options[WebThumbnailer::MAX_WIDTH] == 0 && $this->options[WebThumbnailer::MAX_HEIGHT] == 0) {
            $maxwidth = ConfigManager::get('settings.default.max_width', 160);
            $this->options[WebThumbnailer::MAX_WIDTH] = $maxwidth;
            $maxheight = ConfigManager::get('settings.default.max_height', 160);
            $this->options[WebThumbnailer::MAX_HEIGHT] = $maxheight;
        }
    }

    /**
     * Get the thumbnail according to download mode:
     *   - HOTLINK_STRICT: will only try to get hotlink thumb.
     *   - HOTLINK: will retrieve hotlink if available, or download otherwise.
     *   - DOWNLOAD: will download the thumb, resize it, and store it in cache.
     *
     * Default mode: DOWNLOAD.
     *
     * @return string|false The thumbnail URL (relative if downloaded), or false if no thumb found.
     *
     * @throws DownloadException
     * @throws ImageConvertException
     * @throws NotAnImageException
     * @throws ThumbnailNotFoundException
     * @throws IOException
     * @throws CacheException
     * @throws BadRulesException
     */
    public function getThumbnail()
    {
        $cache = CacheManager::getCacheFilePath(
            $this->url,
            $this->finder->getDomain(),
            CacheManager::TYPE_FINDER,
            $this->options[WebThumbnailer::MAX_WIDTH],
            $this->options[WebThumbnailer::MAX_HEIGHT]
        );
        // Loading Finder result from cache if enabled and valid to prevent useless requests.
        if (
            empty($this->options[WebThumbnailer::NOCACHE])
            && CacheManager::isCacheValid($cache, $this->finder->getDomain(), CacheManager::TYPE_FINDER)
        ) {
            $thumbUrl = file_get_contents($cache);
        } else {
            $thumbUrl = $this->finder->find();
            $thumbUrl = $thumbUrl !== false ? html_entity_decode($thumbUrl) : $thumbUrl;
            file_put_contents($cache, $thumbUrl);
        }

        if (empty($thumbUrl)) {
            $error = 'No thumbnail could be found using ' . $this->finder->getName() . ' finder: ' . $this->url;
            throw new ThumbnailNotFoundException($error);
        }

        // Only hotlink, find() is enough.
        if ($this->options[static::DL_OPTION] === WebThumbnailer::HOTLINK_STRICT) {
            return $this->thumbnailStrictHotlink($thumbUrl);
        }
        // Hotlink if available, download otherwise.
        if ($this->options[static::DL_OPTION] === WebThumbnailer::HOTLINK) {
            return $this->thumbnailHotlink($thumbUrl);
        } else { // Download
            return $this->thumbnailDownload($thumbUrl);
        }
    }

    /**
     * Get thumbnails in HOTLINK_STRICT mode.
     * Won't work for domains which doesn't allow hotlinking.
     *
     * @param string $thumbUrl Thumbnail URL, generated by the Finder.
     *
     * @return string|false The thumbnail URL, or false if hotlinking is disabled.
     *
     * @throws ThumbnailNotFoundException Hotlink is disabled for this domains.
     */
    protected function thumbnailStrictHotlink(string $thumbUrl)
    {
        if (!$this->finder->isHotlinkAllowed()) {
            throw new ThumbnailNotFoundException('Hotlink is not supported for this URL.');
        }

        return $thumbUrl;
    }

    /**
     * Get thumbnails in HOTLINK mode.
     *
     * @param string $thumbUrl Thumbnail URL, generated by the Finder.
     *
     * @return string|bool The thumbnail URL, or false if no thumb found.
     *
     * @throws DownloadException
     * @throws ImageConvertException
     * @throws NotAnImageException
     * @throws IOException
     * @throws CacheException
     * @throws BadRulesException
     */
    protected function thumbnailHotlink(string $thumbUrl)
    {
        if (!$this->finder->isHotlinkAllowed()) {
            return $this->thumbnailDownload($thumbUrl);
        }

        return $thumbUrl;
    }

    /**
     * Get thumbnails in HOTLINK mode.
     *
     * @param string $thumbUrl Thumbnail URL, generated by the Finder.
     *
     * @return string|false The thumbnail URL, or false if no thumb found.
     *
     * @throws DownloadException     Couldn't download the image
     * @throws ImageConvertException Thumbnail not generated
     * @throws NotAnImageException
     * @throws IOException
     * @throws CacheException
     * @throws BadRulesException
     */
    protected function thumbnailDownload(string $thumbUrl)
    {
        // Cache file path.
        $thumbPath = CacheManager::getCacheFilePath(
            $thumbUrl,
            $this->finder->getDomain(),
            CacheManager::TYPE_THUMB,
            $this->options[WebThumbnailer::MAX_WIDTH],
            $this->options[WebThumbnailer::MAX_HEIGHT],
            $this->options[WebThumbnailer::CROP]
        );

        // If the cache is valid, serve it.
        if (
            empty($this->options[WebThumbnailer::NOCACHE])
            && CacheManager::isCacheValid(
                $thumbPath,
                $this->finder->getDomain(),
                CacheManager::TYPE_THUMB
            )
        ) {
            return $thumbPath;
        }

        $webaccess = WebAccessFactory::getWebAccess($thumbUrl);

        // Download the thumb.
        list($headers, $data) = $webaccess->getContent(
            $thumbUrl,
            $this->options[WebThumbnailer::DOWNLOAD_TIMEOUT],
            $this->options[WebThumbnailer::DOWNLOAD_MAX_SIZE]
        );

        if (strpos($headers[0], '200') === false) {
            throw new DownloadException(
                'Unreachable thumbnail URL. HTTP ' . $headers[0] . '.' . PHP_EOL .
                ' - thumbnail URL: ' . $thumbUrl
            );
        }

        if (empty($data)) {
            throw new DownloadException('Couldn\'t download the thumbnail at ' . $thumbUrl);
        }

        // Resize and save it locally.
        ImageUtils::generateThumbnail(
            $data,
            $thumbPath,
            $this->options[WebThumbnailer::MAX_WIDTH],
            $this->options[WebThumbnailer::MAX_HEIGHT],
            $this->options[WebThumbnailer::CROP]
        );

        if (!is_file($thumbPath)) {
            throw new ImageConvertException('Thumbnail was not generated.');
        }

        return $thumbPath;
    }
}


1			<?php
2
3			declare(strict_types=1);
4
5			namespace WebThumbnailer\Application;
6
7			use WebThumbnailer\Application\WebAccess\WebAccessFactory;
8			use WebThumbnailer\Exception\BadRulesException;
9			use WebThumbnailer\Exception\CacheException;
10			use WebThumbnailer\Exception\DownloadException;
11			use WebThumbnailer\Exception\ImageConvertException;
12			use WebThumbnailer\Exception\IOException;
13			use WebThumbnailer\Exception\MissingRequirementException;
14			use WebThumbnailer\Exception\NotAnImageException;
15			use WebThumbnailer\Exception\ThumbnailNotFoundException;
16			use WebThumbnailer\Finder\Finder;
17			use WebThumbnailer\Finder\FinderFactory;
18			use WebThumbnailer\Utils\ApplicationUtils;
19			use WebThumbnailer\Utils\ImageUtils;
20			use WebThumbnailer\Utils\SizeUtils;
21			use WebThumbnailer\WebThumbnailer;
22
23			/**
24			* Main application class, it will:
25			* - retrieve the thumbnail URL using the approriate finder,
26			* - in download mode, download the thumb and resize it,
27			* - use the cache.
28			*/
29			class Thumbnailer
30			{
31			/** @var string Array key for download type option. */
32			protected const DL_OPTION = 'dl';
33
34			/** @var string User given URL, from where to generate a thumbnail. */
35			protected $url;
36
37			/** @var Finder instance. */
38			protected $finder;
39
40			/** @var mixed[] Thumbnailer user options. */
41			protected $options;
42
43			/** @var mixed[] .$_SERVER */
44			protected $server;
45
46			/**
47			* @param string $url User given URL, from where to generate a thumbnail.
48			* @param mixed[] $options Thumbnailer user options.
49			* @param mixed[]\|null $server $_SERVER.
50			*
51			* @throws MissingRequirementException
52			* @throws BadRulesException
53			* @throws IOException
54			*/
55			public function __construct(string $url, array $options, ?array $server)
56			{
57			ApplicationUtils::checkExtensionRequirements(['gd']);
58			ApplicationUtils::checkPHPVersion('5.6', PHP_VERSION);
59
60			$this->url = $url;
61			$this->server = $server;
62			$this->finder = FinderFactory::getFinder($url);
63			$this->finder->setUserOptions($options);
64			$this->setOptions($options);
65			}
66
67			/**
68			* Set Thumbnailer options from user input.
69			*
70			* @param mixed[] $options User options array.
71			*
72			* @throws BadRulesException
73			* @throws IOException
74			*/
75			protected function setOptions(array $options): void
76			{
77			static::checkOptions($options);
78
79			$this->options[static::DL_OPTION] = ConfigManager::get('settings.default.download_mode', 'DOWNLOAD');
80
81			foreach ($options as $key => $value) {
82			// Download option.
83			if (
84			$value === WebThumbnailer::DOWNLOAD
85			\|\| $value === WebThumbnailer::HOTLINK
86			\|\| $value === WebThumbnailer::HOTLINK_STRICT
87			) {
88			$this->options[static::DL_OPTION] = $value;
89			break;
90			}
91			}
92
93			// DL size option
94			if (
95			isset($options[WebThumbnailer::DOWNLOAD_MAX_SIZE])
96			&& is_int($options[WebThumbnailer::DOWNLOAD_MAX_SIZE])
97			) {
98			$this->options[WebThumbnailer::DOWNLOAD_MAX_SIZE] = $options[WebThumbnailer::DOWNLOAD_MAX_SIZE];
99			} else {
100			$maxdl = ConfigManager::get('settings.default.max_img_dl', 4194304);
101			$this->options[WebThumbnailer::DOWNLOAD_MAX_SIZE] = $maxdl;
102			}
103
104			// DL timeout option
105			if (
106			isset($options[WebThumbnailer::DOWNLOAD_TIMEOUT])
107			&& is_int($options[WebThumbnailer::DOWNLOAD_TIMEOUT])
108			) {
109			$this->options[WebThumbnailer::DOWNLOAD_TIMEOUT] = $options[WebThumbnailer::DOWNLOAD_TIMEOUT];
110			} else {
111			$timeout = ConfigManager::get('settings.default.timeout', 30);
112			$this->options[WebThumbnailer::DOWNLOAD_TIMEOUT] = $timeout;
113			}
114
115			if (isset($options[WebThumbnailer::NOCACHE])) {
116			$this->options[WebThumbnailer::NOCACHE] = $options[WebThumbnailer::NOCACHE];
117			}
118
119			if (isset($options[WebThumbnailer::CROP])) {
120			$this->options[WebThumbnailer::CROP] = $options[WebThumbnailer::CROP];
121			} else {
122			$this->options[WebThumbnailer::CROP] = false;
123			}
124
125			if (isset($options[WebThumbnailer::DEBUG])) {
126			$this->options[WebThumbnailer::DEBUG] = $options[WebThumbnailer::DEBUG];
127			} else {
128			$this->options[WebThumbnailer::DEBUG] = false;
129			}
130
131			// Image size
132			$this->setSizeOptions($options);
133			}
134
135			/**
136			* Make sure user options are coherent.
137			* - Only one thumb mode can be defined.
138			*
139			* @param mixed[] $options User options array.
140			*
141			* @return bool True if the check is successful.
142			*
143			* @throws BadRulesException Invalid options.
144			*/
145			protected static function checkOptions(array $options): bool
146			{
147			$incompatibleFlagsList = [
148			[WebThumbnailer::DOWNLOAD, WebThumbnailer::HOTLINK, WebThumbnailer::HOTLINK_STRICT],
149			];
150
151			foreach ($incompatibleFlagsList as $incompatibleFlags) {
152			if (count(array_intersect($incompatibleFlags, $options)) > 1) {
153			$error = 'Only one of these flags can be set between: ';
154			foreach ($incompatibleFlags as $flag) {
155			$error .= $flag . ' ';
156			}
157			throw new BadRulesException($error);
158			}
159			}
160
161			return true;
162			}
163
164			/**
165			* Set specific size option, allowing 'meta' size SMALL, MEDIUM, etc.
166			*
167			* @param mixed[] $options User options array.
168			*
169			* @throws BadRulesException
170			* @throws IOException
171			*/
172			protected function setSizeOptions(array $options): void
173			{
174			foreach ([WebThumbnailer::MAX_WIDTH, WebThumbnailer::MAX_HEIGHT] as $parameter) {
175			$value = 0;
176			if (!empty($options[$parameter])) {
177			if (SizeUtils::isMetaSize((string) $options[$parameter])) {
178			$value = SizeUtils::getMetaSize((string) $options[$parameter]);
179			} elseif (is_int($options[$parameter]) \|\| ctype_digit($options[$parameter])) {
180			$value = $options[$parameter];
181			}
182			}
183
184			$this->options[$parameter] = $value;
185			}
186
187			if ($this->options[WebThumbnailer::MAX_WIDTH] == 0 && $this->options[WebThumbnailer::MAX_HEIGHT] == 0) {
188			$maxwidth = ConfigManager::get('settings.default.max_width', 160);
189			$this->options[WebThumbnailer::MAX_WIDTH] = $maxwidth;
190			$maxheight = ConfigManager::get('settings.default.max_height', 160);
191			$this->options[WebThumbnailer::MAX_HEIGHT] = $maxheight;
192			}
193			}
194
195			/**
196			* Get the thumbnail according to download mode:
197			* - HOTLINK_STRICT: will only try to get hotlink thumb.
198			* - HOTLINK: will retrieve hotlink if available, or download otherwise.
199			* - DOWNLOAD: will download the thumb, resize it, and store it in cache.
200			*
201			* Default mode: DOWNLOAD.
202			*
203			* @return string\|false The thumbnail URL (relative if downloaded), or false if no thumb found.
204			*
205			* @throws DownloadException
206			* @throws ImageConvertException
207			* @throws NotAnImageException
208			* @throws ThumbnailNotFoundException
209			* @throws IOException
210			* @throws CacheException
211			* @throws BadRulesException
212			*/
213			public function getThumbnail()
214			{
215			$cache = CacheManager::getCacheFilePath(
216			$this->url,
217			$this->finder->getDomain(),
218			CacheManager::TYPE_FINDER,
219			$this->options[WebThumbnailer::MAX_WIDTH],
220			$this->options[WebThumbnailer::MAX_HEIGHT]
221			);
222			// Loading Finder result from cache if enabled and valid to prevent useless requests.
223			if (
224			empty($this->options[WebThumbnailer::NOCACHE])
225			&& CacheManager::isCacheValid($cache, $this->finder->getDomain(), CacheManager::TYPE_FINDER)
226			) {
227			$thumbUrl = file_get_contents($cache);
228			} else {
229			$thumbUrl = $this->finder->find();
230			$thumbUrl = $thumbUrl !== false ? html_entity_decode($thumbUrl) : $thumbUrl;
231			file_put_contents($cache, $thumbUrl);
232			}
233
234			if (empty($thumbUrl)) {
235			$error = 'No thumbnail could be found using ' . $this->finder->getName() . ' finder: ' . $this->url;
236			throw new ThumbnailNotFoundException($error);
237			}
238
239			// Only hotlink, find() is enough.
240			if ($this->options[static::DL_OPTION] === WebThumbnailer::HOTLINK_STRICT) {
241			return $this->thumbnailStrictHotlink($thumbUrl);
242			}
243			// Hotlink if available, download otherwise.
244			if ($this->options[static::DL_OPTION] === WebThumbnailer::HOTLINK) {
245			return $this->thumbnailHotlink($thumbUrl);
246			} else { // Download
247			return $this->thumbnailDownload($thumbUrl);
248			}
249			}
250
251			/**
252			* Get thumbnails in HOTLINK_STRICT mode.
253			* Won't work for domains which doesn't allow hotlinking.
254			*
255			* @param string $thumbUrl Thumbnail URL, generated by the Finder.
256			*
257			* @return string\|false The thumbnail URL, or false if hotlinking is disabled.
258			*
259			* @throws ThumbnailNotFoundException Hotlink is disabled for this domains.
260			*/
261			protected function thumbnailStrictHotlink(string $thumbUrl)
262			{
263			if (!$this->finder->isHotlinkAllowed()) {
264			throw new ThumbnailNotFoundException('Hotlink is not supported for this URL.');
265			}
266
267			return $thumbUrl;
268			}
269
270			/**
271			* Get thumbnails in HOTLINK mode.
272			*
273			* @param string $thumbUrl Thumbnail URL, generated by the Finder.
274			*
275			* @return string\|bool The thumbnail URL, or false if no thumb found.
276			*
277			* @throws DownloadException
278			* @throws ImageConvertException
279			* @throws NotAnImageException
280			* @throws IOException
281			* @throws CacheException
282			* @throws BadRulesException
283			*/
284			protected function thumbnailHotlink(string $thumbUrl)
285			{
286			if (!$this->finder->isHotlinkAllowed()) {
287			return $this->thumbnailDownload($thumbUrl);
288			}
289
290			return $thumbUrl;
291			}
292
293			/**
294			* Get thumbnails in HOTLINK mode.
295			*
296			* @param string $thumbUrl Thumbnail URL, generated by the Finder.
297			*
298			* @return string\|false The thumbnail URL, or false if no thumb found.
299			*
300			* @throws DownloadException Couldn't download the image
301			* @throws ImageConvertException Thumbnail not generated
302			* @throws NotAnImageException
303			* @throws IOException
304			* @throws CacheException
305			* @throws BadRulesException
306			*/
307			protected function thumbnailDownload(string $thumbUrl)
308			{
309			// Cache file path.
310			$thumbPath = CacheManager::getCacheFilePath(
311			$thumbUrl,
312			$this->finder->getDomain(),
313			CacheManager::TYPE_THUMB,
314			$this->options[WebThumbnailer::MAX_WIDTH],
315			$this->options[WebThumbnailer::MAX_HEIGHT],
316			$this->options[WebThumbnailer::CROP]
317			);
318
319			// If the cache is valid, serve it.
320			if (
321			empty($this->options[WebThumbnailer::NOCACHE])
322			&& CacheManager::isCacheValid(
323			$thumbPath,
324			$this->finder->getDomain(),
325			CacheManager::TYPE_THUMB
326			)
327			) {
328			return $thumbPath;
329			}
330
331			$webaccess = WebAccessFactory::getWebAccess($thumbUrl);
332
333			// Download the thumb.
334			list($headers, $data) = $webaccess->getContent(
335			$thumbUrl,
336			$this->options[WebThumbnailer::DOWNLOAD_TIMEOUT],
337			$this->options[WebThumbnailer::DOWNLOAD_MAX_SIZE]
338			);
339
340			if (strpos($headers[0], '200') === false) {
341			throw new DownloadException(
342			'Unreachable thumbnail URL. HTTP ' . $headers[0] . '.' . PHP_EOL .
343			' - thumbnail URL: ' . $thumbUrl
344			);
345			}
346
347			if (empty($data)) {
348			throw new DownloadException('Couldn\'t download the thumbnail at ' . $thumbUrl);
349			}
350
351			// Resize and save it locally.
352			ImageUtils::generateThumbnail(
353			$data,
354			$thumbPath,
355			$this->options[WebThumbnailer::MAX_WIDTH],
356			$this->options[WebThumbnailer::MAX_HEIGHT],
357			$this->options[WebThumbnailer::CROP]
358			);
359
360			if (!is_file($thumbPath)) {
361			throw new ImageConvertException('Thumbnail was not generated.');
362			}
363
364			return $thumbPath;
365			}
366			}
367

ArthurHoaro / web-thumbnailer

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Thumbnailer::thumbnailDownload() B

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