Jetpack_Podcast_Helper::load_feed() - Code Metrics - Inspection of "Infinite Scroll: Add support for legacy jQuery eve..." - Automattic/jetpack - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — updates/infinity-vanilla-js ( fda899...9466ff )

unknown

created 2020-03-27 09:03 UTC

Jetpack_Podcast_Helper::load_feed() A

↳ Parent: Jetpack_Podcast_Helper

Complexity

Conditions	3
Paths	3

Size

Total Lines

Duplication

Lines	13
Ratio	100 %

Importance

Changes

Metric	Value
cc	3
nc	3
nop	1
dl	13
loc	13
rs	9.8333
c	0
b	0
f	0

<?php
/**
 * Helper to massage Podcast data to be used in the Podcast block.
 *
 * @package jetpack
 */

/**
 * Class Jetpack_Podcast_Helper
 */
class Jetpack_Podcast_Helper {
	/**
	 * Gets podcast data formatted to be used by the Podcast Player block in both server-side
	 * block rendering and in API `WPCOM_REST_API_V2_Endpoint_Podcast_Player`.
	 *
	 * The result is cached for one hour.
	 *
	 * @param string $feed     The RSS feed to load and list tracks for.
	 * @return array|WP_Error The player data or a error object.
	 */
	public static function get_player_data( $feed ) {
		$feed = esc_url_raw( $feed );

		// Try loading data from the cache.
		$transient_key = 'jetpack_podcast_' . md5( $feed );
		$player_data   = get_transient( $transient_key );

		// Fetch data if we don't have any cached.
		if ( false === $player_data ) {
			// Load feed.
			$rss = self::load_feed( $feed );
			if ( is_wp_error( $rss ) ) {
				return $rss;
			}

			// Get tracks.
			$tracks = self::get_track_list( $rss );
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}

			// Get podcast meta.
			$title = $rss->get_title();

			$title = self::get_plain_text( $title );

			$cover = $rss->get_image_url();

			$cover = ! empty( $cover ) ? esc_url( $cover ) : null;

			$link = $rss->get_link();

			$link = ! empty( $link ) ? esc_url( $link ) : null;

			$player_data = array(
				'title'  => $title,
				'link'   => $link,
				'cover'  => $cover,
				'tracks' => $tracks,
			);

			// Cache for 1 hour.
			set_transient( $transient_key, $player_data, HOUR_IN_SECONDS );
		}

		return $player_data;
	}

	/**
	 * Gets a list of tracks for the supplied RSS feed.
	 *
	 * @param string $rss      The RSS feed to load and list tracks for.
	 * @return array|WP_Error The feed's tracks or a error object.
	 */
	private static function get_track_list( $rss ) {
		// Get first ten items and format them.
		$track_list = array_map( array( __CLASS__, 'setup_tracks_callback' ), $rss->get_items( 0, 10 ) );


		// Remove empty tracks.
		return array_filter( $track_list );
	}

	/**
	 * Formats string as pure plaintext, with no HTML tags or entities present.
	 * This is ready to be used in React, innerText but needs to be escaped
	 * using standard `esc_html` when generating markup on server.
	 *
	 * @param string $str Input string.
	 * @return string Plain text string.
	 */
	private static function get_plain_text( $str ) {
		// Trim string and return if empty.
		$str = trim( (string) $str );
		if ( empty( $str ) ) {
			return '';
		}

		// Replace all entities with their characters, including all types of quotes.
		$str = wp_specialchars_decode( $str, ENT_QUOTES );

		// Make sure there are no tags.
		$str = wp_strip_all_tags( $str );

		return $str;
	}

	/**
	 * Loads an RSS feed using `fetch_feed`.
	 *
	 * @param string $feed        The RSS feed URL to load.
	 * @return SimplePie|WP_Error The RSS object or error.
	 */
	private static function load_feed( $feed ) {
		$rss = fetch_feed( esc_url_raw( $feed ) );

		if ( is_wp_error( $rss ) ) {
			return new WP_Error( 'invalid_url', __( 'Your podcast couldn\'t be embedded. Please double check your URL.', 'jetpack' ) );

		}

		if ( ! $rss->get_item_quantity() ) {
			return new WP_Error( 'no_tracks', __( 'Podcast audio RSS feed has no tracks.', 'jetpack' ) );

		}

		return $rss;
	}

	/**
	 * Prepares Episode data to be used by the Podcast Player block.
	 *
	 * @param SimplePie_Item $episode SimplePie_Item object, representing a podcast episode.
	 * @return array
	 */
	private static function setup_tracks_callback( SimplePie_Item $episode ) {
		$enclosure = self::get_audio_enclosure( $episode );

		// If there is no link return an empty array. We will filter out later.
		if ( empty( $enclosure->link ) ) {
			return array();
		}

		// Build track data.
		$track = array(
			'id'          => wp_unique_id( 'podcast-track-' ),
			'link'        => esc_url( $episode->get_link() ),
			'src'         => esc_url( $enclosure->link ),
			'type'        => esc_attr( $enclosure->type ),
			'description' => self::get_plain_text( $episode->get_description() ),
			'title'       => self::get_plain_text( $episode->get_title() ),
		);

		if ( empty( $track['title'] ) ) {
			$track['title'] = esc_html__( '(no title)', 'jetpack' );
		}

		if ( ! empty( $enclosure->duration ) ) {
			$track['duration'] = esc_html( self::format_track_duration( $enclosure->duration ) );
		}

		return $track;
	}

	/**
	 * Retrieves an audio enclosure.
	 *
	 * @param SimplePie_Item $episode SimplePie_Item object, representing a podcast episode.
	 * @return SimplePie_Enclosure|null
	 */
	private static function get_audio_enclosure( SimplePie_Item $episode ) {
		foreach ( (array) $episode->get_enclosures() as $enclosure ) {
			if ( 0 === strpos( $enclosure->type, 'audio/' ) ) {
				return $enclosure;
			}
		}

		// Default to empty SimplePie_Enclosure object.
		return $episode->get_enclosure();
	}

	/**
	 * Returns the track duration as a formatted string.
	 *
	 * @param number $duration of the track in seconds.
	 * @return string
	 */
	private static function format_track_duration( $duration ) {
		$format = $duration > HOUR_IN_SECONDS ? 'H:i:s' : 'i:s';

		return date_i18n( $format, $duration );
	}
}


1		<?php
2		/**
3		* Helper to massage Podcast data to be used in the Podcast block.
4		*
5		* @package jetpack
6		*/
7
8		/**
9		* Class Jetpack_Podcast_Helper
10		*/
11		class Jetpack_Podcast_Helper {
12		/**
13		* Gets podcast data formatted to be used by the Podcast Player block in both server-side
14		* block rendering and in API `WPCOM_REST_API_V2_Endpoint_Podcast_Player`.
15		*
16		* The result is cached for one hour.
17		*
18		* @param string $feed The RSS feed to load and list tracks for.
19		* @return array\|WP_Error The player data or a error object.
20		*/
21		public static function get_player_data( $feed ) {
22		$feed = esc_url_raw( $feed );
23
24		// Try loading data from the cache.
25		$transient_key = 'jetpack_podcast_' . md5( $feed );
26		$player_data = get_transient( $transient_key );
27
28		// Fetch data if we don't have any cached.
29		if ( false === $player_data ) {
30		// Load feed.
31		$rss = self::load_feed( $feed );
32		if ( is_wp_error( $rss ) ) {
33		return $rss;
34		}
35
36		// Get tracks.
37		$tracks = self::get_track_list( $rss );
		0 ignored issues – show Bug introduced 2020-03-25 11:16 UTC by Report Bug Copy Issue Report It seems like `$rss` defined by `self::load_feed($feed)` on line `31` can also be of type `object<WP_Error>`; however, `Jetpack_Podcast_Helper::get_track_list()` does only seem to accept `string`, maybe add an additional type check? If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check: /** * @return array\|string */ function returnsDifferentValues($x) { if ($x) { return 'foo'; } return array(); } $x = returnsDifferentValues($y); if (is_array($x)) { // $x is an array. } If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue. Loading history...
38
39		// Get podcast meta.
40		$title = $rss->get_title();
		0 ignored issues – show Bug introduced 2020-03-25 15:44 UTC by Report Bug Copy Issue Report The method `get_title()` does not seem to exist on `object<WP_Error>`. This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces. This is most likely a typographical error or the method has been renamed. Loading history...
41		$title = self::get_plain_text( $title );
42
43		$cover = $rss->get_image_url();
		0 ignored issues – show Bug introduced 2020-03-25 15:44 UTC by Report Bug Copy Issue Report The method `get_image_url()` does not seem to exist on `object<WP_Error>`. This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces. This is most likely a typographical error or the method has been renamed. Loading history...
44		$cover = ! empty( $cover ) ? esc_url( $cover ) : null;
45
46		$link = $rss->get_link();
		0 ignored issues – show Bug introduced 2020-03-25 15:44 UTC by Report Bug Copy Issue Report The method `get_link()` does not seem to exist on `object<WP_Error>`. This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces. This is most likely a typographical error or the method has been renamed. Loading history...
47		$link = ! empty( $link ) ? esc_url( $link ) : null;
48
49		$player_data = array(
50		'title' => $title,
51		'link' => $link,
52		'cover' => $cover,
53		'tracks' => $tracks,
54		);
55
56		// Cache for 1 hour.
57		set_transient( $transient_key, $player_data, HOUR_IN_SECONDS );
58		}
59
60		return $player_data;
61		}
62
63		/**
64		* Gets a list of tracks for the supplied RSS feed.
65		*
66		* @param string $rss The RSS feed to load and list tracks for.
67		* @return array\|WP_Error The feed's tracks or a error object.
68		*/
69		private static function get_track_list( $rss ) {
70		// Get first ten items and format them.
71		$track_list = array_map( array( __CLASS__, 'setup_tracks_callback' ), $rss->get_items( 0, 10 ) );
		0 ignored issues – show Bug introduced 2020-03-25 11:16 UTC by Report Bug Copy Issue Report The method `get_items` cannot be called on `$rss` (of type `string`). Methods can only be called on objects. This check looks for methods being called on variables that have been inferred to never be objects. Loading history...
72
73		// Remove empty tracks.
74		return array_filter( $track_list );
75		}
76
77		/**
78		* Formats string as pure plaintext, with no HTML tags or entities present.
79		* This is ready to be used in React, innerText but needs to be escaped
80		* using standard `esc_html` when generating markup on server.
81		*
82		* @param string $str Input string.
83		* @return string Plain text string.
84		*/
85		private static function get_plain_text( $str ) {
86		// Trim string and return if empty.
87		$str = trim( (string) $str );
88		if ( empty( $str ) ) {
89		return '';
90		}
91
92		// Replace all entities with their characters, including all types of quotes.
93		$str = wp_specialchars_decode( $str, ENT_QUOTES );
94
95		// Make sure there are no tags.
96		$str = wp_strip_all_tags( $str );
97
98		return $str;
99		}
100
101		/**
102		* Loads an RSS feed using `fetch_feed`.
103		*
104		* @param string $feed The RSS feed URL to load.
105		* @return SimplePie\|WP_Error The RSS object or error.
106		*/
107	View Code Duplication	private static function load_feed( $feed ) {
108		$rss = fetch_feed( esc_url_raw( $feed ) );
109
110		if ( is_wp_error( $rss ) ) {
111		return new WP_Error( 'invalid_url', __( 'Your podcast couldn\'t be embedded. Please double check your URL.', 'jetpack' ) );
		0 ignored issues – show Unused Code introduced 2020-03-13 13:48 UTC by Report Bug Copy Issue Report The call to `WP_Error::__construct()` has too many arguments starting with `'invalid_url'`. This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue. If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. In this case you can add the `@ignore` PhpDoc annotation to the duplicate definition and it will be ignored. Loading history...
112		}
113
114		if ( ! $rss->get_item_quantity() ) {
115		return new WP_Error( 'no_tracks', __( 'Podcast audio RSS feed has no tracks.', 'jetpack' ) );
		0 ignored issues – show Unused Code introduced 2020-03-11 15:08 UTC by Report Bug Copy Issue Report The call to `WP_Error::__construct()` has too many arguments starting with `'no_tracks'`. This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue. If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. In this case you can add the `@ignore` PhpDoc annotation to the duplicate definition and it will be ignored. Loading history...
116		}
117
118		return $rss;
119		}
120
121		/**
122		* Prepares Episode data to be used by the Podcast Player block.
123		*
124		* @param SimplePie_Item $episode SimplePie_Item object, representing a podcast episode.
125		* @return array
126		*/
127		private static function setup_tracks_callback( SimplePie_Item $episode ) {
128		$enclosure = self::get_audio_enclosure( $episode );
129
130		// If there is no link return an empty array. We will filter out later.
131		if ( empty( $enclosure->link ) ) {
132		return array();
133		}
134
135		// Build track data.
136		$track = array(
137		'id' => wp_unique_id( 'podcast-track-' ),
138		'link' => esc_url( $episode->get_link() ),
139		'src' => esc_url( $enclosure->link ),
140		'type' => esc_attr( $enclosure->type ),
141		'description' => self::get_plain_text( $episode->get_description() ),
142		'title' => self::get_plain_text( $episode->get_title() ),
143		);
144
145		if ( empty( $track['title'] ) ) {
146		$track['title'] = esc_html__( '(no title)', 'jetpack' );
147		}
148
149		if ( ! empty( $enclosure->duration ) ) {
150		$track['duration'] = esc_html( self::format_track_duration( $enclosure->duration ) );
151		}
152
153		return $track;
154		}
155
156		/**
157		* Retrieves an audio enclosure.
158		*
159		* @param SimplePie_Item $episode SimplePie_Item object, representing a podcast episode.
160		* @return SimplePie_Enclosure\|null
161		*/
162		private static function get_audio_enclosure( SimplePie_Item $episode ) {
163		foreach ( (array) $episode->get_enclosures() as $enclosure ) {
164		if ( 0 === strpos( $enclosure->type, 'audio/' ) ) {
165		return $enclosure;
166		}
167		}
168
169		// Default to empty SimplePie_Enclosure object.
170		return $episode->get_enclosure();
171		}
172
173		/**
174		* Returns the track duration as a formatted string.
175		*
176		* @param number $duration of the track in seconds.
177		* @return string
178		*/
179		private static function format_track_duration( $duration ) {
180		$format = $duration > HOUR_IN_SECONDS ? 'H:i:s' : 'i:s';
181
182		return date_i18n( $format, $duration );
183		}
184		}
185

Automattic / jetpack

Push — updates/infinity-vanilla-js ( fda899...9466ff )

Jetpack_Podcast_Helper::load_feed() A

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

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