jetpack / modules / shortlinks.php

shortlinks.php in Jetpack – WP Security, Backup, Speed, & Growth 7.6, at modules/shortlinks.php

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1	<?php
2	/**
3	* Module Name: WP.me Shortlinks
4	* Module Description: Generates shorter links so you can have more space to write on social media sites.
5	* Sort Order: 8
6	* First Introduced: 1.1
7	* Requires Connection: Yes
8	* Auto Activate: No
9	* Module Tags: Social
10	* Feature: Writing
11	* Additional Search Queries: shortlinks, wp.me
12	*/
13
14	add_filter( 'pre_get_shortlink', 'wpme_get_shortlink_handler', 1, 4 );
15
16	if ( !function_exists( 'wpme_dec2sixtwo' ) ) {
17	function wpme_dec2sixtwo( $num ) {
18	$index = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
19	$out = "";
20
21	if ( $num < 0 ) {
22	$out = '-';
23	$num = abs( $num );
24	}
25
26	for ( $t = floor( log10( $num ) / log10( 62 ) ); $t >= 0; $t-- ) {
27	$a = floor( $num / pow( 62, $t ) );
28	$out = $out . substr( $index, $a, 1 );
29	$num = $num - ( $a * pow( 62, $t ) );
30	}
31
32	return $out;
33	}
34	}
35
36	function wpme_get_shortlink( $id = 0, $context = 'post', $allow_slugs = true ) {
37	global $wp_query;
38
39	$blog_id = Jetpack_Options::get_option( 'id' );
40
41	if ( 'query' == $context ) {
42	if ( is_singular() ) {
43	$id = $wp_query->get_queried_object_id();
44	$context = 'post';
45	} elseif ( is_front_page() ) {
46	$context = 'blog';
47	} else {
48	return '';
49	}
50	}
51
52	if ( 'blog' == $context ) {
53	if ( empty( $id ) )
54	$id = $blog_id;
55
56	return 'https://wp.me/' . wpme_dec2sixtwo( $id );
57	}
58
59	$post = get_post( $id );
60
61	if ( empty( $post ) )
62	return '';
63
64	$post_id = $post->ID;
65	$type = '';
66
67	if ( $allow_slugs && 'publish' == $post->post_status && 'post' == $post->post_type && strlen( $post->post_name ) <= 8 && false === strpos( $post->post_name, '%' )
68	&& false === strpos( $post->post_name, '-' ) ) {
69	$id = $post->post_name;
70	$type = 's';
71	} else {
72	$id = wpme_dec2sixtwo( $post_id );
73	if ( 'page' == $post->post_type )
74	$type = 'P';
75	elseif ( 'post' == $post->post_type \|\| post_type_supports( $post->post_type, 'shortlinks' ) )
76	$type= 'p';
77	elseif ( 'attachment' == $post->post_type )
78	$type = 'a';
79	}
80
81	if ( empty( $type ) )
82	return '';
83
84	return 'https://wp.me/' . $type . wpme_dec2sixtwo( $blog_id ) . '-' . $id;
85	}
86
87	function wpme_get_shortlink_handler( $shortlink, $id, $context, $allow_slugs ) {
88	return wpme_get_shortlink( $id, $context, $allow_slugs );
89	}
90
91	/**
92	* Add Shortlinks to the REST API responses.
93	*
94	* @since 6.9.0
95	*
96	* @action rest_api_init
97	* @uses register_rest_field, wpme_rest_get_shortlink
98	*/
99	function wpme_rest_register_shortlinks() {
100	register_rest_field(
101	array(
102	'attachment',
103	'page',
104	'post',
105	),
106	'jetpack_shortlink',
107	array(
108	'get_callback' => 'wpme_rest_get_shortlink',
109	'update_callback' => null,
110	'schema' => null,
111	)
112	);
113	}
114
115	/**
116	* Get the shortlink of a post.
117	*
118	* @since 6.9.0
119	*
120	* @param array $object Details of current post.
121	*
122	* @uses wpme_get_shortlink
123	*
124	* @return string
125	*/
126	function wpme_rest_get_shortlink( $object ) {
127	return wpme_get_shortlink( $object['id'], array() );
128	}
129
130	// Add shortlinks to the REST API Post response.
131	add_action( 'rest_api_init', 'wpme_rest_register_shortlinks' );
132
133	/**
134	* Set the Shortlink Gutenberg extension as available.
135	*/
136	function wpme_set_extension_available() {
137	Jetpack_Gutenberg::set_extension_available( 'jetpack/shortlinks' );
138	}
139
140	add_action( 'init', 'wpme_set_extension_available' );
141