imsanity / ajax.php

ajax.php in Imsanity trunk, at ajax.php

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1	<?php
2	/**
3	* Imsanity AJAX functions.
4	*
5	* @package Imsanity
6	*/
7
8	add_action( 'wp_ajax_imsanity_get_images', 'imsanity_get_images' );
9	add_action( 'wp_ajax_imsanity_resize_image', 'imsanity_ajax_resize' );
10	add_action( 'wp_ajax_imsanity_remove_original', 'imsanity_ajax_remove_original' );
11	add_action( 'wp_ajax_imsanity_bulk_complete', 'imsanity_ajax_finish' );
12
13	/**
14	* Searches for up to 250 images that are candidates for resize and renders them
15	* to the browser as a json array, then dies.
16	*/
17	function imsanity_get_images() {
18	$permissions = apply_filters( 'imsanity_admin_permissions', 'manage_options' );
19	if ( ! current_user_can( $permissions ) \|\| empty( $_REQUEST['_wpnonce'] ) ) {
20	wp_send_json(
21	array(
22	'success' => false,
23	'message' => esc_html__( 'Administrator permission is required', 'imsanity' ),
24	)
25	);
26	}
27	if ( ! wp_verify_nonce( sanitize_key( $_REQUEST['_wpnonce'] ), 'imsanity-bulk' ) && ! wp_verify_nonce( sanitize_key( $_REQUEST['_wpnonce'] ), 'imsanity-manual-resize' ) ) {
28	wp_send_json(
29	array(
30	'success' => false,
31	'message' => esc_html__( 'Access token has expired, please reload the page.', 'imsanity' ),
32	)
33	);
34	}
35
36	$resume_id = ! empty( $_POST['resume_id'] ) ? (int) $_POST['resume_id'] : PHP_INT_MAX;
37	global $wpdb;
38	// Load up all the image attachments we can find.
39	$attachments = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE ID < %d AND post_type = 'attachment' AND post_mime_type LIKE %s ORDER BY ID DESC", $resume_id, '%%image%%' ) );
40	array_walk( $attachments, 'intval' );
41	wp_send_json( $attachments );
42	}
43
44	/**
45	* Resizes the image with the given id according to the configured max width and height settings
46	* renders a json response indicating success/failure and dies.
47	*/
48	function imsanity_ajax_resize() {
49	$permissions = apply_filters( 'imsanity_editor_permissions', 'edit_others_posts' );
50	if ( ! current_user_can( $permissions ) \|\| empty( $_REQUEST['_wpnonce'] ) ) {
51	wp_send_json(
52	array(
53	'success' => false,
54	'message' => esc_html__( 'Editor permission is required', 'imsanity' ),
55	)
56	);
57	}
58	if ( ! wp_verify_nonce( sanitize_key( $_REQUEST['_wpnonce'] ), 'imsanity-bulk' ) && ! wp_verify_nonce( sanitize_key( $_REQUEST['_wpnonce'] ), 'imsanity-manual-resize' ) ) {
59	wp_send_json(
60	array(
61	'success' => false,
62	'message' => esc_html__( 'Access token has expired, please reload the page.', 'imsanity' ),
63	)
64	);
65	}
66
67	$id = ! empty( $_POST['id'] ) ? (int) $_POST['id'] : 0;
68	if ( ! $id ) {
69	wp_send_json(
70	array(
71	'success' => false,
72	'message' => esc_html__( 'Missing ID Parameter', 'imsanity' ),
73	)
74	);
75	}
76	$results = imsanity_resize_from_id( $id );
77	if ( ! empty( $_POST['resumable'] ) ) {
78	update_option( 'imsanity_resume_id', $id, false );
79	sleep( 1 );
80	}
81
82	wp_send_json( $results );
83	}
84
85	/**
86	* Removes the original image with the given id and renders a json response indicating success/failure and dies.
87	*/
88	function imsanity_ajax_remove_original() {
89	$permissions = apply_filters( 'imsanity_editor_permissions', 'edit_others_posts' );
90	if ( ! current_user_can( $permissions ) \|\| empty( $_REQUEST['_wpnonce'] ) ) {
91	wp_send_json(
92	array(
93	'success' => false,
94	'message' => esc_html__( 'Editor permission is required', 'imsanity' ),
95	)
96	);
97	}
98	if ( ! wp_verify_nonce( sanitize_key( $_REQUEST['_wpnonce'] ), 'imsanity-bulk' ) && ! wp_verify_nonce( sanitize_key( $_REQUEST['_wpnonce'] ), 'imsanity-manual-resize' ) ) {
99	wp_send_json(
100	array(
101	'success' => false,
102	'message' => esc_html__( 'Access token has expired, please reload the page.', 'imsanity' ),
103	)
104	);
105	}
106
107	$id = ! empty( $_POST['id'] ) ? (int) $_POST['id'] : 0;
108	if ( ! $id ) {
109	wp_send_json(
110	array(
111	'success' => false,
112	'message' => esc_html__( 'Missing ID Parameter', 'imsanity' ),
113	)
114	);
115	}
116	$remove_original = imsanity_remove_original_image( $id );
117	if ( $remove_original && is_array( $remove_original ) ) {
118	wp_update_attachment_metadata( $id, $remove_original );
119	wp_send_json( array( 'success' => true ) );
120	}
121
122	wp_send_json( array( 'success' => false ) );
123	}
124
125	/**
126	* Finalizes the resizing process.
127	*/
128	function imsanity_ajax_finish() {
129	$permissions = apply_filters( 'imsanity_admin_permissions', 'manage_options' );
130	if ( ! current_user_can( $permissions ) \|\| empty( $_REQUEST['_wpnonce'] ) ) {
131	wp_send_json(
132	array(
133	'success' => false,
134	'message' => esc_html__( 'Administrator permission is required', 'imsanity' ),
135	)
136	);
137	}
138	if ( ! wp_verify_nonce( sanitize_key( $_REQUEST['_wpnonce'] ), 'imsanity-bulk' ) && ! wp_verify_nonce( sanitize_key( $_REQUEST['_wpnonce'] ), 'imsanity-manual-resize' ) ) {
139	wp_send_json(
140	array(
141	'success' => false,
142	'message' => esc_html__( 'Access token has expired, please reload the page.', 'imsanity' ),
143	)
144	);
145	}
146
147	update_option( 'imsanity_resume_id', 0, false );
148
149	die();
150	}
151