Jetpack_SEO_Titles::get_custom_title() - Code Metrics - Inspection of "Merge branch 'master' of github.com:Automattic/jet..." - Automattic/jetpack - Measure and Improve Code Quality continuously with Scrutinizer

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created 2016-11-21 17:18 UTC

Jetpack_SEO_Titles::get_custom_title() C

↳ Parent: Jetpack_SEO_Titles

Complexity

Conditions	7
Paths	7

Size

Total Lines	37
Code Lines	19

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	7
eloc	19
nc	7
nop	1
dl	0
loc	37
rs	6.7272
c	0
b	0
f	0

<?php

/*
 * Each title format is an array of arrays containing two values:
 *  - type
 *  - value
 *
 * Possible values for type are: 'token' and 'string'.
 * Possible values for 'value' are: any string in case that 'type' is set
 * to 'string', or allowed token values for page type in case that 'type'
 * is set to 'token'.
 *
 * Examples of valid formats:
 *
 * [
 *  'front_page' => [
 *      [ 'type' => 'string', 'value' => 'Front page title and site name:'],
 *      [ 'type' => 'token', 'value' => 'site_name']
 *  ],
 *  'posts' => [
 *      [ 'type' => 'token', 'value' => 'site_name' ],
 *      [ 'type' => 'string', 'value' => ' | ' ],
 *      [ 'type' => 'token', 'value' => 'post_title' ]
 *  ],
 *  'pages' => [],
 *  'groups' => [],
 *  'archives' => []
 * ]
 *  Custom title for given page type is created by concatenating all of the array 'value' parts.
 *  Tokens are replaced with their corresponding values for current site.
 *  Empty array signals that we are not overriding the default title for particular page type.
 */

/**
 * Class containing utility static methods for managing SEO custom title formats.
 */
class Jetpack_SEO_Titles {
	/**
	 * Site option name used to store custom title formats.
	 */
	const TITLE_FORMATS_OPTION = 'advanced_seo_title_formats';

	/**
	 * Retrieves custom title formats from site option.
	 *
	 * @return array Array of custom title formats, or empty array.
	 */
	public static function get_custom_title_formats() {
		if( Jetpack_SEO_Utils::is_enabled_jetpack_seo() ) {
			return get_option( self::TITLE_FORMATS_OPTION, array() );
		}

		return array();
	}

	/**
	 * Returns tokens that are currently supported for each page type.
	 *
	 * @return array Array of allowed token strings.
	 */
	public static function get_allowed_tokens() {
		return array(
			'front_page' => array( 'site_name', 'tagline' ),
			'posts'      => array( 'site_name', 'tagline', 'post_title' ),
			'pages'      => array( 'site_name', 'tagline', 'page_title' ),
			'groups'     => array( 'site_name', 'tagline', 'group_title' ),
			'archives'   => array( 'site_name', 'tagline', 'date' ),
		);
	}

	/**
	 * Used to modify the default title with custom SEO title.
	 *
	 * @param string $default_title Default title for current page.
	 *
	 * @return string Custom title with replaced tokens or default title.
	 */
	public static function get_custom_title( $default_title = '' ) {
		// Don't filter title for unsupported themes.
		if ( self::is_conflicted_theme() ) {
			return $default_title;
		}

		$page_type = self::get_page_type();

		// Keep default title if invalid page type is supplied.
		if ( empty( $page_type ) ) {
			return $default_title;
		}

		$title_formats = self::get_custom_title_formats();

		// Keep default title if user has not defined custom title for this page type.
		if ( empty( $title_formats[ $page_type ] ) ) {
			return $default_title;
		}

		if ( ! Jetpack_SEO_Utils::is_enabled_jetpack_seo() ) {
			return $default_title;
		}

		$custom_title = '';
		$format_array = $title_formats[ $page_type ];

		foreach ( $format_array as $item ) {
			if ( 'token' == $item['type'] ) {
				$custom_title .= self::get_token_value( $item['value'] );
			} else {
				$custom_title .= $item['value'];
			}
		}

		return esc_html( $custom_title );
	}

	/**
	 * Returns string value for given token.
	 *
	 * @param string $token_name The token name value that should be replaced.
	 *
	 * @return string Token replacement for current site, or empty string for unknown token name.
	 */
	public static function get_token_value( $token_name ) {

		switch ( $token_name ) {
			case 'site_name':
				return get_bloginfo( 'name' );

			case 'tagline':
				return get_bloginfo( 'description' );

			case 'post_title':
			case 'page_title':
				return get_the_title();

			case 'group_title':
				return single_tag_title( '', false );

			case 'date':
				return self::get_date_for_title();

			default:
				return '';
		}
	}

	/**
	 * Returns page type for current page. We need this helper in order to determine what
	 * user defined title format should be used for custom title.
	 *
	 * @return string|bool Type of current page or false if unsupported.
	 */
	public static function get_page_type() {

		if ( is_front_page() ) {
			return 'front_page';
		}

		if ( is_category() || is_tag() ) {
			return 'groups';
		}

		if ( is_archive() && ! is_author() ) {
			return 'archives';
		}

		if ( is_page() ) {
			return 'pages';
		}

		if ( is_singular() ) {
			return 'posts';
		}

		return false;
	}

	/**
	 * Returns the value that should be used as a replacement for the date token,
	 * depending on the archive path specified.
	 *
	 * @return string Token replacement for a given date, or empty string if no date is specified.
	 */
	public static function get_date_for_title() {
		// If archive year, month, and day are specified.
		if ( is_day() ) {
			return get_the_date();
		}

		// If archive year, and month are specified.
		if ( is_month() ) {
			return trim( single_month_title( ' ', false ) );
		}

		// Only archive year is specified.
		if ( is_year() ) {
			return get_query_var( 'year' );
		}

		return '';
	}

	/**
	 * Checks if current theme is defining custom title that won't work nicely
	 * with our custom SEO title override.
	 *
	 * @return bool True if current theme sets custom title, false otherwise.
	 */
	public static function is_conflicted_theme() {
		/**
		 * Can be used to specify a list of themes that use their own custom title format.
		 *
		 * If current site is using one of the themes listed as conflicting,
		 * Jetpack SEO custom title formats will be disabled.
		 *
		 * @module seo-tools
		 *
		 * @since 4.4.0
		 *
		 * @param array List of conflicted theme names. Defaults to empty array.
		 */
		$conflicted_themes = apply_filters( 'jetpack_seo_custom_title_conflicted_themes', array() );

		return isset( $conflicted_themes[ get_option( 'template' ) ] );
	}

	/**
	 * Checks if a given format conforms to predefined SEO title templates.
	 *
	 * Every format type and token must be whitelisted.
	 * @see get_allowed_tokens()
	 *
	 * @param array $title_formats Template of SEO title to check.
	 *
	 * @return bool True if the formats are valid, false otherwise.
	 */
	public static function are_valid_title_formats( $title_formats ) {
		$allowed_tokens = self::get_allowed_tokens();

		if ( ! is_array( $title_formats ) ) {
			return false;
		}

		foreach ( $title_formats as $format_type => $format_array ) {
			if ( ! in_array( $format_type, array_keys( $allowed_tokens ) ) ) {
				return false;
			}

			if ( ! is_array( $format_array ) ) {
				return false;
			}

			foreach ( $format_array as $item ) {
				if ( empty( $item['type'] ) || empty( $item['value'] ) ) {
					return false;
				}

				if ( 'token' == $item['type'] ) {
					if ( ! in_array( $item['value'], $allowed_tokens[ $format_type ] ) ) {
						return false;
					}
				}
			}
		}

		return true;
	}

	/**
	 * Combines the previous values of title formats, stored as array in site options,
	 * with the new values that are provided.
	 *
	 * @param array $new_formats Array containing new title formats.
	 *
	 * @return array $result Array of updated title formats, or empty array if no update was performed.
	 */
	public static function update_title_formats( $new_formats ) {
		// Empty array signals that custom title shouldn't be used.
		$empty_formats = array(
			'front_page' => array(),
			'posts'      => array(),
			'pages'      => array(),
			'groups'     => array(),
			'archives'   => array(),
		);

		$previous_formats = self::get_custom_title_formats();

		$result = array_merge( $empty_formats, $previous_formats, $new_formats );

		if ( update_option( self::TITLE_FORMATS_OPTION, $result ) ) {
			return $result;
		}

		return array();
	}
}


1			<?php
2
3			/*
4			* Each title format is an array of arrays containing two values:
5			* - type
6			* - value
7			*
8			* Possible values for type are: 'token' and 'string'.
9			* Possible values for 'value' are: any string in case that 'type' is set
10			* to 'string', or allowed token values for page type in case that 'type'
11			* is set to 'token'.
12			*
13			* Examples of valid formats:
14			*
15			* [
16			* 'front_page' => [
17			* [ 'type' => 'string', 'value' => 'Front page title and site name:'],
18			* [ 'type' => 'token', 'value' => 'site_name']
19			* ],
20			* 'posts' => [
21			* [ 'type' => 'token', 'value' => 'site_name' ],
22			* [ 'type' => 'string', 'value' => ' \| ' ],
23			* [ 'type' => 'token', 'value' => 'post_title' ]
24			* ],
25			* 'pages' => [],
26			* 'groups' => [],
27			* 'archives' => []
28			* ]
29			* Custom title for given page type is created by concatenating all of the array 'value' parts.
30			* Tokens are replaced with their corresponding values for current site.
31			* Empty array signals that we are not overriding the default title for particular page type.
32			*/
33
34			/**
35			* Class containing utility static methods for managing SEO custom title formats.
36			*/
37			class Jetpack_SEO_Titles {
38			/**
39			* Site option name used to store custom title formats.
40			*/
41			const TITLE_FORMATS_OPTION = 'advanced_seo_title_formats';
42
43			/**
44			* Retrieves custom title formats from site option.
45			*
46			* @return array Array of custom title formats, or empty array.
47			*/
48			public static function get_custom_title_formats() {
49			if( Jetpack_SEO_Utils::is_enabled_jetpack_seo() ) {
50			return get_option( self::TITLE_FORMATS_OPTION, array() );
51			}
52
53			return array();
54			}
55
56			/**
57			* Returns tokens that are currently supported for each page type.
58			*
59			* @return array Array of allowed token strings.
60			*/
61			public static function get_allowed_tokens() {
62			return array(
63			'front_page' => array( 'site_name', 'tagline' ),
64			'posts' => array( 'site_name', 'tagline', 'post_title' ),
65			'pages' => array( 'site_name', 'tagline', 'page_title' ),
66			'groups' => array( 'site_name', 'tagline', 'group_title' ),
67			'archives' => array( 'site_name', 'tagline', 'date' ),
68			);
69			}
70
71			/**
72			* Used to modify the default title with custom SEO title.
73			*
74			* @param string $default_title Default title for current page.
75			*
76			* @return string Custom title with replaced tokens or default title.
77			*/
78			public static function get_custom_title( $default_title = '' ) {
79			// Don't filter title for unsupported themes.
80			if ( self::is_conflicted_theme() ) {
81			return $default_title;
82			}
83
84			$page_type = self::get_page_type();
85
86			// Keep default title if invalid page type is supplied.
87			if ( empty( $page_type ) ) {
88			return $default_title;
89			}
90
91			$title_formats = self::get_custom_title_formats();
92
93			// Keep default title if user has not defined custom title for this page type.
94			if ( empty( $title_formats[ $page_type ] ) ) {
95			return $default_title;
96			}
97
98			if ( ! Jetpack_SEO_Utils::is_enabled_jetpack_seo() ) {
99			return $default_title;
100			}
101
102			$custom_title = '';
103			$format_array = $title_formats[ $page_type ];
104
105			foreach ( $format_array as $item ) {
106			if ( 'token' == $item['type'] ) {
107			$custom_title .= self::get_token_value( $item['value'] );
108			} else {
109			$custom_title .= $item['value'];
110			}
111			}
112
113			return esc_html( $custom_title );
114			}
115
116			/**
117			* Returns string value for given token.
118			*
119			* @param string $token_name The token name value that should be replaced.
120			*
121			* @return string Token replacement for current site, or empty string for unknown token name.
122			*/
123			public static function get_token_value( $token_name ) {
124
125			switch ( $token_name ) {
126			case 'site_name':
127			return get_bloginfo( 'name' );
128
129			case 'tagline':
130			return get_bloginfo( 'description' );
131
132			case 'post_title':
133			case 'page_title':
134			return get_the_title();
135
136			case 'group_title':
137			return single_tag_title( '', false );
138
139			case 'date':
140			return self::get_date_for_title();
141
142			default:
143			return '';
144			}
145			}
146
147			/**
148			* Returns page type for current page. We need this helper in order to determine what
149			* user defined title format should be used for custom title.
150			*
151			* @return string\|bool Type of current page or false if unsupported.
152			*/
153			public static function get_page_type() {
154
155			if ( is_front_page() ) {
156			return 'front_page';
157			}
158
159			if ( is_category() \|\| is_tag() ) {
160			return 'groups';
161			}
162
163			if ( is_archive() && ! is_author() ) {
164			return 'archives';
165			}
166
167			if ( is_page() ) {
168			return 'pages';
169			}
170
171			if ( is_singular() ) {
172			return 'posts';
173			}
174
175			return false;
176			}
177
178			/**
179			* Returns the value that should be used as a replacement for the date token,
180			* depending on the archive path specified.
181			*
182			* @return string Token replacement for a given date, or empty string if no date is specified.
183			*/
184			public static function get_date_for_title() {
185			// If archive year, month, and day are specified.
186			if ( is_day() ) {
187			return get_the_date();
188			}
189
190			// If archive year, and month are specified.
191			if ( is_month() ) {
192			return trim( single_month_title( ' ', false ) );
193			}
194
195			// Only archive year is specified.
196			if ( is_year() ) {
197			return get_query_var( 'year' );
198			}
199
200			return '';
201			}
202
203			/**
204			* Checks if current theme is defining custom title that won't work nicely
205			* with our custom SEO title override.
206			*
207			* @return bool True if current theme sets custom title, false otherwise.
208			*/
209			public static function is_conflicted_theme() {
210			/**
211			* Can be used to specify a list of themes that use their own custom title format.
212			*
213			* If current site is using one of the themes listed as conflicting,
214			* Jetpack SEO custom title formats will be disabled.
215			*
216			* @module seo-tools
217			*
218			* @since 4.4.0
219			*
220			* @param array List of conflicted theme names. Defaults to empty array.
221			*/
222			$conflicted_themes = apply_filters( 'jetpack_seo_custom_title_conflicted_themes', array() );
223
224			return isset( $conflicted_themes[ get_option( 'template' ) ] );
225			}
226
227			/**
228			* Checks if a given format conforms to predefined SEO title templates.
229			*
230			* Every format type and token must be whitelisted.
231			* @see get_allowed_tokens()
232			*
233			* @param array $title_formats Template of SEO title to check.
234			*
235			* @return bool True if the formats are valid, false otherwise.
236			*/
237			public static function are_valid_title_formats( $title_formats ) {
238			$allowed_tokens = self::get_allowed_tokens();
239
240			if ( ! is_array( $title_formats ) ) {
241			return false;
242			}
243
244			foreach ( $title_formats as $format_type => $format_array ) {
245			if ( ! in_array( $format_type, array_keys( $allowed_tokens ) ) ) {
246			return false;
247			}
248
249			if ( ! is_array( $format_array ) ) {
250			return false;
251			}
252
253			foreach ( $format_array as $item ) {
254			if ( empty( $item['type'] ) \|\| empty( $item['value'] ) ) {
255			return false;
256			}
257
258			if ( 'token' == $item['type'] ) {
259			if ( ! in_array( $item['value'], $allowed_tokens[ $format_type ] ) ) {
260			return false;
261			}
262			}
263			}
264			}
265
266			return true;
267			}
268
269			/**
270			* Combines the previous values of title formats, stored as array in site options,
271			* with the new values that are provided.
272			*
273			* @param array $new_formats Array containing new title formats.
274			*
275			* @return array $result Array of updated title formats, or empty array if no update was performed.
276			*/
277			public static function update_title_formats( $new_formats ) {
278			// Empty array signals that custom title shouldn't be used.
279			$empty_formats = array(
280			'front_page' => array(),
281			'posts' => array(),
282			'pages' => array(),
283			'groups' => array(),
284			'archives' => array(),
285			);
286
287			$previous_formats = self::get_custom_title_formats();
288
289			$result = array_merge( $empty_formats, $previous_formats, $new_formats );
290
291			if ( update_option( self::TITLE_FORMATS_OPTION, $result ) ) {
292			return $result;
293			}
294
295			return array();
296			}
297			}
298

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Jetpack_SEO_Titles::get_custom_title() C

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