ManifestStrategy::getCurrentRemoteVersion() - Code Metrics - Inspection of "[WIP] Manifest file strategy (updated)" - humbug/phar-updater - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#37)

by Pádraic

created 2017-05-14 14:27 UTC

ManifestStrategy::getCurrentRemoteVersion() C

↳ Parent: ManifestStrategy

Complexity

Conditions	7
Paths	16

Size

Total Lines	23
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	23
rs	6.7272
c	0
b	0
f	0
cc	7
eloc	12
nc	16
nop	1

<?php
/**
 * Humbug
 *
 * @category   Humbug
 * @package    Humbug
 * @copyright  Copyright (c) 2017 Patrick Dawkins
 * @license    https://github.com/padraic/phar-updater/blob/master/LICENSE New BSD License
 *
 */
namespace Humbug\SelfUpdate\Strategy;

use Humbug\SelfUpdate\Exception\HttpRequestException;
use Humbug\SelfUpdate\Exception\JsonParsingException;
use Humbug\SelfUpdate\Updater;
use Humbug\SelfUpdate\VersionParser;
use Humbug\SelfUpdate\Exception\RuntimeException;

final class ManifestStrategy implements StrategyInterface
{
    /**
     * @var array
     */
    private static $requiredKeys = array('sha256', 'version', 'url');

    /**
     * @var string
     */
    private $manifestUrl;

    /**
     * @var array
     */
    private $manifest;

    /**
     * @var array
     */
    private $availableVersions;

    /**
     * @var string
     */
    private $localVersion;

    /**
     * @var bool
     */
    private $allowMajor = false;

    /**
     * @var bool
     */
    private $allowUnstable = false;

    /**
     * @var int
     */
    private $manifestTimeout = 60;

    /**
     * @var int
     */
    private $downloadTimeout = 60;

    /**
     * @var bool
     */
    private $ignorePhpReq = false;

    /**
     * Set version string of the local phar
     *
     * @param string $version
     */
    public function setCurrentLocalVersion($version)
    {
        $this->localVersion = $version;
        return $this;
    }

    /**
     * @param int $downloadTimeout
     * @return  self
     */
    public function setDownloadTimeout($downloadTimeout)
    {
        $this->downloadTimeout = $downloadTimeout;
        return $this;
    }

    /**
     * @param int $manifestTimeout
     * @return  self
     */
    public function setManifestTimeout($manifestTimeout)
    {
        $this->manifestTimeout = $manifestTimeout;
        return $this;
    }

    /**
     * If set, ignores any restrictions based on currently running PHP version.
     * @return  self
     */
    public function ignorePhpRequirements()
    {
        $this->ignorePhpReq = true;
        return $this;
    }

    /**
     * If set, ignores any restrictions based on currently running PHP version.
     * @return  self
     */
    public function allowMajorVersionUpdates()
    {
        $this->allowMajor = true;
        return $this;
    }

    /**
     * If set, ignores any restrictions based on currently running PHP version.
     * @return  self
     */
    public function allowUnstableVersionUpdates()
    {
        $this->allowUnstable = true;
        return $this;
    }

    public function setManifestUrl($url)
    {
        $this->manifestUrl = $url;
        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function getCurrentLocalVersion(Updater $updater)
    {
        return $this->localVersion;
    }

    /**
     * {@inheritdoc}
     */
    public function download(Updater $updater)
    {
        $version = $this->getCurrentRemoteVersion($updater);
        if ($version === false) {
            throw new RuntimeException('No remote versions found');
        }

        $versionInfo = $this->getAvailableVersions();
        if (!isset($versionInfo[$version])) {
            throw new RuntimeException(sprintf('Failed to find manifest item for version %s', $version));
        }

        $context = stream_context_create(['http' => ['timeout' => $this->downloadTimeout]]);
        /** Switch remote request errors to HttpRequestExceptions */
        set_error_handler(array($updater, 'throwHttpRequestException'));
        $fileContents = file_get_contents($versionInfo[$version]['url'], false, $context);
        restore_error_handler();

        if ($fileContents === false) {
            throw new HttpRequestException(sprintf('Failed to download file from URL: %s', $versionInfo[$version]['url']));
        }

        $tmpFilename = $updater->getTempPharFile();
        if (file_put_contents($tmpFilename, $fileContents) === false) {
            throw new RuntimeException(sprintf('Failed to write file: %s', $tmpFilename));
        }

        $tmpSha = hash_file('sha256', $tmpFilename);
        if ($tmpSha !== $versionInfo[$version]['sha256']) {
            unlink($tmpFilename);
            throw new RuntimeException(
                sprintf(
                    'SHA-256 verification failed: expected %s, actual %s',
                    $versionInfo[$version]['sha256'],
                    $tmpSha
                )
            );
        }
    }

    /**
     * {@inheritdoc}
     */
    public function getCurrentRemoteVersion(Updater $updater)
    {
        $versions = array_keys($this->getAvailableVersions());
        if (!$this->allowMajor) {
            $versions = $this->filterByLocalMajorVersion($versions);
        }
        if (!$this->ignorePhpReq) {
            $versions = $this->filterByPhpVersion($versions);
        }

        $versionParser = new VersionParser($versions);

        $mostRecent = $versionParser->getMostRecentStable();

        // Look for unstable updates if explicitly allowed, or if the local
        // version is already unstable and there is no new stable version.
        if ($this->allowUnstable || ($versionParser->isUnstable($this->localVersion)
        && version_compare($mostRecent, $this->localVersion, '<'))) {
            $mostRecent = $versionParser->getMostRecentAll();
        }

        return version_compare($mostRecent, $this->localVersion, '>') ? $mostRecent : false;
    }

    /**
     * Find update/upgrade notes for the new remote version.
     *
     * @param Updater $updater
     * @param bool $useBaseNote Return if no version specific update notes found.
     *
     * @return string|false A string if notes are found, or false otherwise.
     */
    public function getUpdateNotes(Updater $updater, $useBaseNote = false)
    {
        $versionInfo = $this->getRemoteVersionInfo($updater);
        if (empty($versionInfo['updating'])) {
            return false;
        }
        $localVersion = $this->getCurrentLocalVersion($updater);
        $items = isset($versionInfo['updating'][0]) ? $versionInfo['updating'] : [$versionInfo['updating']];
        foreach ($items as $updating) {
            if (!isset($updating['notes'])) {
                continue;
            } elseif (isset($updating['hide from'])
            && version_compare($localVersion, $updating['hide from'], '>=')) {
                continue;
            } elseif (isset($updating['show from'])
            && version_compare($localVersion, $updating['show from'], '<')) {
                continue;
            }

            return $updating['notes'];
        }

        if (true === $useBaseNote && !empty($versionInfo['notes'])) {
            return $versionInfo['notes'];
        }

        return false;
    }

    /**
     * Gets available versions to update to.
     *
     * @return array  An array keyed by the version name, whose elements are arrays
     *                containing version information ('name', 'sha256', and 'url').
     */
    private function getAvailableVersions()
    {
        if (isset($this->availableVersions)) {
            return $this->availableVersions;
        }

        $this->availableVersions = array();
        foreach ($this->retrieveManifest() as $key => $item) {
            if ($missing = array_diff(self::$requiredKeys, array_keys($item))) {
                throw new RuntimeException(
                    sprintf(
                        'Manifest item %s missing required key(s): %s',
                        $key,
                        implode(',', $missing)
                    )
                );
            }
            $this->availableVersions[$item['version']] = $item;
        }
        return $this->availableVersions;
    }

    /**
     * Download and decode the JSON manifest file.
     *
     * @return array
     */
    private function retrieveManifest()
    {
        if (isset($this->manifest)) {
            return $this->manifest;
        }

        if (!isset($this->manifest)) {
            $context = stream_context_create(['http' => ['timeout' => $this->manifestTimeout]]);
            $manifestContents = file_get_contents($this->manifestUrl, false, $context);
            if ($manifestContents === false) {
                throw new RuntimeException(sprintf('Failed to download manifest: %s', $this->manifestUrl));
            }

            $this->manifest = json_decode($manifestContents, true, 512, JSON_OBJECT_AS_ARRAY);

            if (json_last_error() !== JSON_ERROR_NONE) {

                throw new JsonParsingException(
                    'Error parsing manifest file'
                    . (function_exists('json_last_error_msg') ? ': ' . json_last_error_msg() : '')
                );
            }
        }

        return $this->manifest;
    }

    /**
     * Get version information for the latest remote version.
     *
     * @param Updater $updater
     *
     * @return array
     */
    private function getRemoteVersionInfo(Updater $updater)
    {
        $version = $this->getCurrentRemoteVersion($updater);
        if ($version === false) {
            throw new RuntimeException('No remote versions found');
        }
        $versionInfo = $this->getAvailableVersions();
        if (!isset($versionInfo[$version])) {
            throw new RuntimeException(sprintf('Failed to find manifest item for version %s', $version));
        }
        return $versionInfo[$version];
    }

    /**
     * Filter a list of versions to those that match the current local version.
     *
     * @param string[] $versions
     *
     * @return string[]
     */
    private function filterByLocalMajorVersion(array $versions)
    {
        list($localMajorVersion, ) = explode('.', $this->localVersion, 2);

        return array_filter($versions, function ($version) use ($localMajorVersion) {
            list($majorVersion, ) = explode('.', $version, 2);
            return $majorVersion === $localMajorVersion;
        });
    }

        /**
     * Filter a list of versions to those that allow the current PHP version.
     *
     * @param string[] $versions
     *
     * @return string[]
     */
    private function filterByPhpVersion(array $versions)
    {
        $versionInfo = $this->getAvailableVersions();
        return array_filter($versions, function ($version) use ($versionInfo) {
            if (isset($versionInfo[$version]['php']['min'])
                && version_compare(PHP_VERSION, $versionInfo[$version]['php']['min'], '<')) {
                return false;
            } elseif (isset($versionInfo[$version]['php']['max'])
                && version_compare(PHP_VERSION, $versionInfo[$version]['php']['max'], '>')) {
                return false;
            }
            return true;
        });
    }
}


1		<?php
2		/**
3		* Humbug
4		*
5		* @category Humbug
6		* @package Humbug
7		* @copyright Copyright (c) 2017 Patrick Dawkins
8		* @license https://github.com/padraic/phar-updater/blob/master/LICENSE New BSD License
9		*
10		*/
11		namespace Humbug\SelfUpdate\Strategy;
12
13		use Humbug\SelfUpdate\Exception\HttpRequestException;
14		use Humbug\SelfUpdate\Exception\JsonParsingException;
15		use Humbug\SelfUpdate\Updater;
16		use Humbug\SelfUpdate\VersionParser;
17		use Humbug\SelfUpdate\Exception\RuntimeException;
18
19		final class ManifestStrategy implements StrategyInterface
20		{
21		/**
22		* @var array
23		*/
24		private static $requiredKeys = array('sha256', 'version', 'url');
25
26		/**
27		* @var string
28		*/
29		private $manifestUrl;
30
31		/**
32		* @var array
33		*/
34		private $manifest;
35
36		/**
37		* @var array
38		*/
39		private $availableVersions;
40
41		/**
42		* @var string
43		*/
44		private $localVersion;
45
46		/**
47		* @var bool
48		*/
49		private $allowMajor = false;
50
51		/**
52		* @var bool
53		*/
54		private $allowUnstable = false;
55
56		/**
57		* @var int
58		*/
59		private $manifestTimeout = 60;
60
61		/**
62		* @var int
63		*/
64		private $downloadTimeout = 60;
65
66		/**
67		* @var bool
68		*/
69		private $ignorePhpReq = false;
70
71		/**
72		* Set version string of the local phar
73		*
74		* @param string $version
75		*/
76		public function setCurrentLocalVersion($version)
77		{
78		$this->localVersion = $version;
79		return $this;
80		}
81
82		/**
83		* @param int $downloadTimeout
84		* @return self
85		*/
86		public function setDownloadTimeout($downloadTimeout)
87		{
88		$this->downloadTimeout = $downloadTimeout;
89		return $this;
90		}
91
92		/**
93		* @param int $manifestTimeout
94		* @return self
95		*/
96		public function setManifestTimeout($manifestTimeout)
97		{
98		$this->manifestTimeout = $manifestTimeout;
99		return $this;
100		}
101
102		/**
103		* If set, ignores any restrictions based on currently running PHP version.
104		* @return self
105		*/
106		public function ignorePhpRequirements()
107		{
108		$this->ignorePhpReq = true;
109		return $this;
110		}
111
112		/**
113		* If set, ignores any restrictions based on currently running PHP version.
114		* @return self
115		*/
116		public function allowMajorVersionUpdates()
117		{
118		$this->allowMajor = true;
119		return $this;
120		}
121
122		/**
123		* If set, ignores any restrictions based on currently running PHP version.
124		* @return self
125		*/
126		public function allowUnstableVersionUpdates()
127		{
128		$this->allowUnstable = true;
129		return $this;
130		}
131
132		public function setManifestUrl($url)
133		{
134		$this->manifestUrl = $url;
135		return $this;
136		}
137
138		/**
139		* {@inheritdoc}
140		*/
141		public function getCurrentLocalVersion(Updater $updater)
142		{
143		return $this->localVersion;
144		}
145
146		/**
147		* {@inheritdoc}
148		*/
149		public function download(Updater $updater)
150		{
151		$version = $this->getCurrentRemoteVersion($updater);
152		if ($version === false) {
153		throw new RuntimeException('No remote versions found');
154		}
155
156		$versionInfo = $this->getAvailableVersions();
157		if (!isset($versionInfo[$version])) {
158		throw new RuntimeException(sprintf('Failed to find manifest item for version %s', $version));
159		}
160
161		$context = stream_context_create(['http' => ['timeout' => $this->downloadTimeout]]);
162		/** Switch remote request errors to HttpRequestExceptions */
163		set_error_handler(array($updater, 'throwHttpRequestException'));
164		$fileContents = file_get_contents($versionInfo[$version]['url'], false, $context);
165		restore_error_handler();
166
167		if ($fileContents === false) {
168		throw new HttpRequestException(sprintf('Failed to download file from URL: %s', $versionInfo[$version]['url']));
169		}
170
171		$tmpFilename = $updater->getTempPharFile();
172		if (file_put_contents($tmpFilename, $fileContents) === false) {
173		throw new RuntimeException(sprintf('Failed to write file: %s', $tmpFilename));
174		}
175
176		$tmpSha = hash_file('sha256', $tmpFilename);
177		if ($tmpSha !== $versionInfo[$version]['sha256']) {
178		unlink($tmpFilename);
179		throw new RuntimeException(
180		sprintf(
181		'SHA-256 verification failed: expected %s, actual %s',
182		$versionInfo[$version]['sha256'],
183		$tmpSha
184		)
185		);
186		}
187		}
188
189		/**
190		* {@inheritdoc}
191		*/
192		public function getCurrentRemoteVersion(Updater $updater)
193		{
194		$versions = array_keys($this->getAvailableVersions());
195		if (!$this->allowMajor) {
196		$versions = $this->filterByLocalMajorVersion($versions);
197		}
198		if (!$this->ignorePhpReq) {
199		$versions = $this->filterByPhpVersion($versions);
200		}
201
202		$versionParser = new VersionParser($versions);
203
204		$mostRecent = $versionParser->getMostRecentStable();
205
206		// Look for unstable updates if explicitly allowed, or if the local
207		// version is already unstable and there is no new stable version.
208		if ($this->allowUnstable \|\| ($versionParser->isUnstable($this->localVersion)
209		&& version_compare($mostRecent, $this->localVersion, '<'))) {
210		$mostRecent = $versionParser->getMostRecentAll();
211		}
212
213		return version_compare($mostRecent, $this->localVersion, '>') ? $mostRecent : false;
214		}
215
216		/**
217		* Find update/upgrade notes for the new remote version.
218		*
219		* @param Updater $updater
220		* @param bool $useBaseNote Return if no version specific update notes found.
221		*
222		* @return string\|false A string if notes are found, or false otherwise.
223		*/
224		public function getUpdateNotes(Updater $updater, $useBaseNote = false)
225		{
226		$versionInfo = $this->getRemoteVersionInfo($updater);
227		if (empty($versionInfo['updating'])) {
228		return false;
229		}
230		$localVersion = $this->getCurrentLocalVersion($updater);
231		$items = isset($versionInfo['updating'][0]) ? $versionInfo['updating'] : [$versionInfo['updating']];
232		foreach ($items as $updating) {
233		if (!isset($updating['notes'])) {
234		continue;
235		} elseif (isset($updating['hide from'])
236		&& version_compare($localVersion, $updating['hide from'], '>=')) {
237		continue;
238		} elseif (isset($updating['show from'])
239		&& version_compare($localVersion, $updating['show from'], '<')) {
240		continue;
241		}
242
243		return $updating['notes'];
244		}
245
246		if (true === $useBaseNote && !empty($versionInfo['notes'])) {
247		return $versionInfo['notes'];
248		}
249
250		return false;
251		}
252
253		/**
254		* Gets available versions to update to.
255		*
256		* @return array An array keyed by the version name, whose elements are arrays
257		* containing version information ('name', 'sha256', and 'url').
258		*/
259		private function getAvailableVersions()
260		{
261		if (isset($this->availableVersions)) {
262		return $this->availableVersions;
263		}
264
265		$this->availableVersions = array();
266		foreach ($this->retrieveManifest() as $key => $item) {
267		if ($missing = array_diff(self::$requiredKeys, array_keys($item))) {
268		throw new RuntimeException(
269		sprintf(
270		'Manifest item %s missing required key(s): %s',
271		$key,
272		implode(',', $missing)
273		)
274		);
275		}
276		$this->availableVersions[$item['version']] = $item;
277		}
278		return $this->availableVersions;
279		}
280
281		/**
282		* Download and decode the JSON manifest file.
283		*
284		* @return array
285		*/
286		private function retrieveManifest()
287		{
288		if (isset($this->manifest)) {
289		return $this->manifest;
290		}
291
292		if (!isset($this->manifest)) {
293		$context = stream_context_create(['http' => ['timeout' => $this->manifestTimeout]]);
294		$manifestContents = file_get_contents($this->manifestUrl, false, $context);
295		if ($manifestContents === false) {
296		throw new RuntimeException(sprintf('Failed to download manifest: %s', $this->manifestUrl));
297		}
298
299		$this->manifest = json_decode($manifestContents, true, 512, JSON_OBJECT_AS_ARRAY);
		0 ignored issues – show Documentation Bug introduced 2017-05-13 22:48 UTC by Report Bug Copy Issue Report It seems like `json_decode($manifestCon..., JSON_OBJECT_AS_ARRAY)` of type `*` is incompatible with the declared type `array` of property `$manifest`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
300	View Code Duplication	if (json_last_error() !== JSON_ERROR_NONE) {
		0 ignored issues – show Duplication introduced 2017-05-13 22:48 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
301		throw new JsonParsingException(
302		'Error parsing manifest file'
303		. (function_exists('json_last_error_msg') ? ': ' . json_last_error_msg() : '')
304		);
305		}
306		}
307
308		return $this->manifest;
309		}
310
311		/**
312		* Get version information for the latest remote version.
313		*
314		* @param Updater $updater
315		*
316		* @return array
317		*/
318		private function getRemoteVersionInfo(Updater $updater)
319		{
320		$version = $this->getCurrentRemoteVersion($updater);
321		if ($version === false) {
322		throw new RuntimeException('No remote versions found');
323		}
324		$versionInfo = $this->getAvailableVersions();
325		if (!isset($versionInfo[$version])) {
326		throw new RuntimeException(sprintf('Failed to find manifest item for version %s', $version));
327		}
328		return $versionInfo[$version];
329		}
330
331		/**
332		* Filter a list of versions to those that match the current local version.
333		*
334		* @param string[] $versions
335		*
336		* @return string[]
337		*/
338		private function filterByLocalMajorVersion(array $versions)
339		{
340		list($localMajorVersion, ) = explode('.', $this->localVersion, 2);
341
342		return array_filter($versions, function ($version) use ($localMajorVersion) {
343		list($majorVersion, ) = explode('.', $version, 2);
344		return $majorVersion === $localMajorVersion;
345		});
346		}
347
348		/**
349		* Filter a list of versions to those that allow the current PHP version.
350		*
351		* @param string[] $versions
352		*
353		* @return string[]
354		*/
355		private function filterByPhpVersion(array $versions)
356		{
357		$versionInfo = $this->getAvailableVersions();
358		return array_filter($versions, function ($version) use ($versionInfo) {
359		if (isset($versionInfo[$version]['php']['min'])
360		&& version_compare(PHP_VERSION, $versionInfo[$version]['php']['min'], '<')) {
361		return false;
362		} elseif (isset($versionInfo[$version]['php']['max'])
363		&& version_compare(PHP_VERSION, $versionInfo[$version]['php']['max'], '>')) {
364		return false;
365		}
366		return true;
367		});
368		}
369		}
370

humbug / phar-updater

Pull Request — master (#37)

ManifestStrategy::getCurrentRemoteVersion() C

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

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