cache::imageCache() - Code Metrics - Inspection of "add giphy image cache support" - dimaslanjaka/universal-framework - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( de8bd8...d0433f )

by Dimas

created 2020-07-13 15:51 UTC

cache::imageCache() C

↳ Parent: cache

Complexity

Conditions	12
Paths	48

Size

Total Lines	59
Code Lines	44

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	1

Metric	Value
cc	12
eloc	44
c	1
b	0
f	1
nc	48
nop	2
dl	0
loc	59
rs	6.9666

How to fix Long Method Complexity

<?php

namespace img;

class cache
{
  public static $saved;
  public static $url;
  public static $api;
  public static $cache;
  public static $cache_dir = ROOT . '/tmp/img/';

  public function __construct()
  {
    self::$api = new \Extender\request('https://unsplash.it');
  }

  public static function imageCache(string $url, bool $rewrite = false)
  {
    if (!self::$api) {
      self::$api = new \Extender\request('https://unsplash.it');
    }
    self::$url = $url;
    $saved = self::$cache_dir . '/img/saved.json';
    self::$saved = $saved;
    $res = read_file($saved, []);
    if (is_string($res)) {
      $res = json_decode($res, true);
    }

    self::$api->setUrl($url);
    $url = self::$api->url;
    $cache = self::$cache_dir . '/' . md5($url);
    self::$cache = $cache;
    if (file_exists($cache) && !headers_sent()) {
      header_remove('x-powered-by');
      header_remove('pragma');
      self::send_cache_header($cache);
      $lastModified = gmdate('D, d M Y H:i:s', filemtime($cache)) . ' GMT';
      header('Cache-Control: private');
      /*
       * Send fallback headers
       */
      //header('Content-type: image/jpeg');
      header('ETag: ' . md5_file($cache));
      header("Last-Modified: $lastModified");
      // 1 day expires
      header('Expires: ' . gmdate('D, d M Y H:i:s', ((60 * 60 * 24 * 1) + strtotime($lastModified))));
    }

    if (!isset($res[$url]) || (is_bool($rewrite) && $rewrite)) {
      self::$api->set_method('get');
      self::$api->exec();
      for ($i = 0; $i < 2; ++$i) {
        if (isset(self::$api->responseHeaders['Location'])) {
          self::$api->get(self::$api->responseHeaders['Location']);
        } else {
          break;
        }
      }
      $res[$url] = self::$api->url;
      write_file($saved, $res, true);
      write_file($cache, self::$api->response, true);
      header('Content-Type: ' . self::$api->responseHeaders['Content-Type'], true);
      echo self::$api->response;
    } elseif (file_exists($cache)) {
      header('Content-Type: ' . mime_content_type($cache), true);
      $read = read_file($cache);
      if (!empty($read)) {
        echo $read;
      } else {
        return self::{__FUNCTION__}($url, true);
      }
    } else {
      self::$api->set_url($res[$url])->set_method('get')->exec();
      self::writeCache();
    }
  }

  /**
   * Transform url image to cache
   * * `schema data cache`
   * ```json
   * { "md5": "realURL" }
   * ```.
   *
   * @author Dimas Lanjaka <[email protected]>
   */
  public static function url2cache(string $url)
  {
    if (!self::$api) {
      self::$api = new \Extender\request('https://unsplash.it');
    }
    /**
     * @var string Anonymize url into md5
     *
     * @todo Fix unecessary characters from url
     */
    $md5 = md5($url);
    /**
     * @var string Save cache name generator.
     *
     * @return string domain or default
     */
    $savedname = function () {
      global $url;
      $savedname = \MVC\helper::url2host($url);
      if (!$savedname) {
        $savedname = 'default';
      }

      return $savedname;
    };
    /**
     * @var string Save location schema image
     */
    $saved = __DIR__ . "/data/$savedname.json";
    self::$saved = $saved;
    $res = read_file($saved, []);
    if (is_string($res)) {
      $res = json_decode($res, true);
    }
    if (isset($res[$md5])) {
      self::$url = $res[$md5];
    } elseif (\MVC\helper::is_url($url)) {
      $res[$md5] = self::$url = $url;
      $saved = __DIR__ . "/data/$savedname.json";
    }

    self::$api->setUrl(self::$url);
    $url = self::$api->url;
    $cache = ROOT . '/tmp/img/' . md5($url);
    self::$cache = $cache;

    if (!file_exists($cache)) {
      self::$api->set_method('get');
      self::$api->exec();
      for ($i = 0; $i < 10; ++$i) {
        if (isset(self::$api->responseHeaders['Location'])) {
          self::$api->get(self::$api->responseHeaders['Location']);
        } else {
          break;
        }
      }

      write_file($saved, $res, true);
      write_file($cache, self::$api->response, true);
    }

    return '/img/cache?hash=' . md5($url);
  }

  /**
   * Write Cache.
   *
   * @return void
   */
  public static function writeCache()
  {
    $res[self::$url] = self::$api->url;

    write_file(self::$saved, $res, true);
    write_file(self::$cache, self::$api->response, true);
    header('Content-Type: ' . self::$api->responseHeaders['Content-Type'], true);
    echo self::$api->response;
  }

  /**
   * Send Cache Header for static content.
   *
   * @param [type] $cache_file_name

   * @param bool   $check_request
   *
   * @return void
   */
  public static function send_cache_header($cache_file_name, $check_request = false)
  {
    if (headers_sent()) {
      return;
    }
    $mtime = @filemtime($cache_file_name);

    if ($mtime > 0) {
      $gmt_mtime = gmdate('D, d M Y H:i:s', $mtime) . ' GMT';
      $etag = sprintf('%08x-%08x', crc32($cache_file_name), $mtime);

      header('ETag: "' . $etag . '"', true);
      header('Last-Modified: ' . $gmt_mtime, true);
      header('Cache-Control: private', true);
      // we don't send an "Expires:" header to make clients/browsers use if-modified-since and/or if-none-match

      if ($check_request) {
        if (isset($_SERVER['HTTP_IF_NONE_MATCH']) && !empty($_SERVER['HTTP_IF_NONE_MATCH'])) {
          $tmp = explode(';', $_SERVER['HTTP_IF_NONE_MATCH']); // IE fix!
          if (!empty($tmp[0]) && strtotime($tmp[0]) == strtotime($gmt_mtime)) {
            header('HTTP/1.1 304 Not Modified');

            return false;

          }
        }

        if (isset($_SERVER['HTTP_IF_NONE_MATCH'])) {
          if (str_replace(['\"', '"'], '', $_SERVER['HTTP_IF_NONE_MATCH']) == $etag) {
            header('HTTP/1.1 304 Not Modified');

            return false;

          }
        }
      }
    }

    return true;

  }
}


1			<?php
2
3			namespace img;
4
5			class cache
6			{
7			public static $saved;
8			public static $url;
9			public static $api;
10			public static $cache;
11			public static $cache_dir = ROOT . '/tmp/img/';
12
13			public function __construct()
14			{
15			self::$api = new \Extender\request('https://unsplash.it');
16			}
17
18			public static function imageCache(string $url, bool $rewrite = false)
19			{
20			if (!self::$api) {
21			self::$api = new \Extender\request('https://unsplash.it');
22			}
23			self::$url = $url;
24			$saved = self::$cache_dir . '/img/saved.json';
25			self::$saved = $saved;
26			$res = read_file($saved, []);
27			if (is_string($res)) {
28			$res = json_decode($res, true);
29			}
30
31			self::$api->setUrl($url);
32			$url = self::$api->url;
33			$cache = self::$cache_dir . '/' . md5($url);
34			self::$cache = $cache;
35			if (file_exists($cache) && !headers_sent()) {
36			header_remove('x-powered-by');
37			header_remove('pragma');
38			self::send_cache_header($cache);
39			$lastModified = gmdate('D, d M Y H:i:s', filemtime($cache)) . ' GMT';
40			header('Cache-Control: private');
41			/*
42			* Send fallback headers
43			*/
44			//header('Content-type: image/jpeg');
45			header('ETag: ' . md5_file($cache));
46			header("Last-Modified: $lastModified");
47			// 1 day expires
48			header('Expires: ' . gmdate('D, d M Y H:i:s', ((60 * 60 * 24 * 1) + strtotime($lastModified))));
49			}
50
51			if (!isset($res[$url]) \|\| (is_bool($rewrite) && $rewrite)) {
52			self::$api->set_method('get');
53			self::$api->exec();
54			for ($i = 0; $i < 2; ++$i) {
55			if (isset(self::$api->responseHeaders['Location'])) {
56			self::$api->get(self::$api->responseHeaders['Location']);
57			} else {
58			break;
59			}
60			}
61			$res[$url] = self::$api->url;
62			write_file($saved, $res, true);
63			write_file($cache, self::$api->response, true);
64			header('Content-Type: ' . self::$api->responseHeaders['Content-Type'], true);
65			echo self::$api->response;
66			} elseif (file_exists($cache)) {
67			header('Content-Type: ' . mime_content_type($cache), true);
68			$read = read_file($cache);
69			if (!empty($read)) {
70			echo $read;
71			} else {
72			return self::{__FUNCTION__}($url, true);
73			}
74			} else {
75			self::$api->set_url($res[$url])->set_method('get')->exec();
76			self::writeCache();
77			}
78			}
79
80			/**
81			* Transform url image to cache
82			* * `schema data cache`
83			* ```json
84			* { "md5": "realURL" }
85			* ```.
86			*
87			* @author Dimas Lanjaka <[email protected]>
88			*/
89			public static function url2cache(string $url)
90			{
91			if (!self::$api) {
92			self::$api = new \Extender\request('https://unsplash.it');
93			}
94			/**
95			* @var string Anonymize url into md5
96			*
97			* @todo Fix unecessary characters from url
98			*/
99			$md5 = md5($url);
100			/**
101			* @var string Save cache name generator.
102			*
103			* @return string domain or default
104			*/
105			$savedname = function () {
106			global $url;
107			$savedname = \MVC\helper::url2host($url);
108			if (!$savedname) {
109			$savedname = 'default';
110			}
111
112			return $savedname;
113			};
114			/**
115			* @var string Save location schema image
116			*/
117			$saved = __DIR__ . "/data/$savedname.json";
118			self::$saved = $saved;
119			$res = read_file($saved, []);
120			if (is_string($res)) {
121			$res = json_decode($res, true);
122			}
123			if (isset($res[$md5])) {
124			self::$url = $res[$md5];
125			} elseif (\MVC\helper::is_url($url)) {
126			$res[$md5] = self::$url = $url;
127			$saved = __DIR__ . "/data/$savedname.json";
128			}
129
130			self::$api->setUrl(self::$url);
131			$url = self::$api->url;
132			$cache = ROOT . '/tmp/img/' . md5($url);
133			self::$cache = $cache;
134
135			if (!file_exists($cache)) {
136			self::$api->set_method('get');
137			self::$api->exec();
138			for ($i = 0; $i < 10; ++$i) {
139			if (isset(self::$api->responseHeaders['Location'])) {
140			self::$api->get(self::$api->responseHeaders['Location']);
141			} else {
142			break;
143			}
144			}
145
146			write_file($saved, $res, true);
147			write_file($cache, self::$api->response, true);
148			}
149
150			return '/img/cache?hash=' . md5($url);
151			}
152
153			/**
154			* Write Cache.
155			*
156			* @return void
157			*/
158			public static function writeCache()
159			{
160			$res[self::$url] = self::$api->url;
			0 ignored issues – show Comprehensibility Best Practice introduced 2020-07-04 13:17 UTC by Report Bug Copy Issue Report `$res` was never initialized. Although not strictly required by PHP, it is generally a good practice to add `$res = array();` before regardless. Loading history...
161			write_file(self::$saved, $res, true);
162			write_file(self::$cache, self::$api->response, true);
163			header('Content-Type: ' . self::$api->responseHeaders['Content-Type'], true);
164			echo self::$api->response;
165			}
166
167			/**
168			* Send Cache Header for static content.
169			*
170			* @param [type] $cache_file_name
			0 ignored issues – show Documentation Bug introduced 2020-07-04 13:17 UTC by Report Bug Copy Issue Report The doc comment `[type]` at position `0` could not be parsed: Unknown type name '[' at position 0 in [type]. Loading history...
171			* @param bool $check_request
172			*
173			* @return void
174			*/
175			public static function send_cache_header($cache_file_name, $check_request = false)
176			{
177			if (headers_sent()) {
178			return;
179			}
180			$mtime = @filemtime($cache_file_name);
181
182			if ($mtime > 0) {
183			$gmt_mtime = gmdate('D, d M Y H:i:s', $mtime) . ' GMT';
184			$etag = sprintf('%08x-%08x', crc32($cache_file_name), $mtime);
185
186			header('ETag: "' . $etag . '"', true);
187			header('Last-Modified: ' . $gmt_mtime, true);
188			header('Cache-Control: private', true);
189			// we don't send an "Expires:" header to make clients/browsers use if-modified-since and/or if-none-match
190
191			if ($check_request) {
192			if (isset($_SERVER['HTTP_IF_NONE_MATCH']) && !empty($_SERVER['HTTP_IF_NONE_MATCH'])) {
193			$tmp = explode(';', $_SERVER['HTTP_IF_NONE_MATCH']); // IE fix!
194			if (!empty($tmp[0]) && strtotime($tmp[0]) == strtotime($gmt_mtime)) {
195			header('HTTP/1.1 304 Not Modified');
196
197			return false;
			0 ignored issues – show Bug Best Practice introduced 2020-07-04 13:17 UTC by Report Bug Copy Issue Report The expression `return false` returns the type `false` which is incompatible with the documented return type `void`. Loading history...
198			}
199			}
200
201			if (isset($_SERVER['HTTP_IF_NONE_MATCH'])) {
202			if (str_replace(['\"', '"'], '', $_SERVER['HTTP_IF_NONE_MATCH']) == $etag) {
203			header('HTTP/1.1 304 Not Modified');
204
205			return false;
			0 ignored issues – show Bug Best Practice introduced 2020-07-04 13:17 UTC by Report Bug Copy Issue Report The expression `return false` returns the type `false` which is incompatible with the documented return type `void`. Loading history...
206			}
207			}
208			}
209			}
210
211			return true;
			0 ignored issues – show Bug Best Practice introduced 2020-07-04 13:17 UTC by Report Bug Copy Issue Report The expression `return true` returns the type `true` which is incompatible with the documented return type `void`. Loading history...
212			}
213			}
214

dimaslanjaka / universal-framework

Push — master ( de8bd8...d0433f )

cache::imageCache() C

Complexity

Size

Duplication

Importance

How to fix Long Method Complexity

Long Method

Duplication Side-by-Side

Filter issues like