xspeed / includes / class-cloudflare.php

class-cloudflare.php in xSpeed Cache: AI-Powered Performance Hub with MCP, Caching & CDN 1.3.0, at includes/class-cloudflare.php

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1	<?php
2	/**
3	* Cloudflare — thin wrapper around the Cloudflare v4 API for purging,
4	* dev-mode toggle, and zone verification.
5	*
6	* Authentication: two supported modes —
7	* token → Authorization: Bearer <api_token> (preferred — scoped)
8	* key → X-Auth-Email + X-Auth-Key (legacy "Global API Key")
9	*
10	* We don't store or send the auth headers anywhere outside the
11	* outgoing API request. No logging. The Free tier exposes Auto Purge
12	* on Update + dev mode + manual purge; APO / Edge Cache TTL stay in
13	* the Pro plugin per FEATURES.md "Cloudflare Integration" §8-10.
14	*
15	* @package XSpeed
16	*/
17
18	declare(strict_types=1);
19
20	namespace XSpeed;
21
22	defined( 'ABSPATH' ) \|\| exit;
23
24	final class Cloudflare {
25
26	private const API_BASE = 'https://api.cloudflare.com/client/v4';
27
28	/**
29	* Verify the configured credentials by hitting GET /zones/{id}.
30	* Returns parsed zone payload on success.
31	*
32	* @return array{ok:bool,status:int,body:array}
33	*/
34	public static function verify( array $opts ): array {
35	$zone = (string) ( $opts['zone_id'] ?? '' );
36	if ( '' === $zone ) {
37	return self::fail( 0, 'Zone ID is empty.' );
38	}
39	return self::request( $opts, 'GET', '/zones/' . rawurlencode( $zone ) );
40	}
41
42	/**
43	* Purge everything in the configured zone. Equivalent to clicking
44	* "Purge Everything" in the Cloudflare dashboard.
45	*
46	* @return array{ok:bool,status:int,body:array}
47	*/
48	public static function purge_all( array $opts ): array {
49	$zone = (string) ( $opts['zone_id'] ?? '' );
50	if ( '' === $zone ) {
51	return self::fail( 0, 'Zone ID is empty.' );
52	}
53	return self::request(
54	$opts,
55	'POST',
56	'/zones/' . rawurlencode( $zone ) . '/purge_cache',
57	array( 'purge_everything' => true )
58	);
59	}
60
61	/**
62	* Purge a specific list of URLs. CF accepts up to 30 per call;
63	* caller should chunk if it has more.
64	*
65	* @param string[] $urls
66	* @return array{ok:bool,status:int,body:array}
67	*/
68	public static function purge_urls( array $opts, array $urls ): array {
69	$urls = array_values( array_filter( array_map( 'strval', $urls ) ) );
70	if ( empty( $urls ) ) {
71	return self::fail( 0, 'No URLs supplied.' );
72	}
73	$zone = (string) ( $opts['zone_id'] ?? '' );
74	if ( '' === $zone ) {
75	return self::fail( 0, 'Zone ID is empty.' );
76	}
77	return self::request(
78	$opts,
79	'POST',
80	'/zones/' . rawurlencode( $zone ) . '/purge_cache',
81	array( 'files' => array_slice( $urls, 0, 30 ) )
82	);
83	}
84
85	/**
86	* Flip development mode on or off. CF auto-disables it after 3
87	* hours; that's the user's behavior, not something we model here.
88	*
89	* @return array{ok:bool,status:int,body:array}
90	*/
91	public static function set_dev_mode( array $opts, bool $on ): array {
92	$zone = (string) ( $opts['zone_id'] ?? '' );
93	if ( '' === $zone ) {
94	return self::fail( 0, 'Zone ID is empty.' );
95	}
96	return self::request(
97	$opts,
98	'PATCH',
99	'/zones/' . rawurlencode( $zone ) . '/settings/development_mode',
100	array( 'value' => $on ? 'on' : 'off' )
101	);
102	}
103
104	/**
105	* Build the auth + content headers based on the selected auth_method.
106	* Public for tests — they assert the right header pair is set.
107	*/
108	public static function build_headers( array $opts ): array {
109	$method = (string) ( $opts['auth_method'] ?? 'token' );
110	$base = array( 'Content-Type' => 'application/json' );
111	if ( 'token' === $method ) {
112	$token = (string) ( $opts['api_token'] ?? '' );
113	if ( '' === $token ) {
114	return $base;
115	}
116	$base['Authorization'] = 'Bearer ' . $token;
117	return $base;
118	}
119	// key mode.
120	$email = (string) ( $opts['email'] ?? '' );
121	$key = (string) ( $opts['api_key'] ?? '' );
122	if ( '' !== $email && '' !== $key ) {
123	$base['X-Auth-Email'] = $email;
124	$base['X-Auth-Key'] = $key;
125	}
126	return $base;
127	}
128
129	/**
130	* Core request helper. Returns a normalized envelope:
131	* ok → true when HTTP < 400 AND CF body { success: true }.
132	* status → HTTP code (0 on transport failure).
133	* body → decoded JSON or [ 'message' => $err ] on failure.
134	*/
135	private static function request( array $opts, string $method, string $path, ?array $payload = null ): array {
136	$headers = self::build_headers( $opts );
137	$args = array(
138	'method' => $method,
139	'headers' => $headers,
140	'timeout' => 12,
141	);
142	if ( null !== $payload ) {
143	$args['body'] = wp_json_encode( $payload );
144	}
145	$url = self::API_BASE . $path;
146
147	$response = wp_remote_request( $url, $args );
148	if ( is_wp_error( $response ) ) {
149	return self::fail( 0, $response->get_error_message() );
150	}
151	$status = (int) wp_remote_retrieve_response_code( $response );
152	$body = wp_remote_retrieve_body( $response );
153	$decoded = is_string( $body ) ? json_decode( $body, true ) : null;
154	if ( ! is_array( $decoded ) ) {
155	$decoded = array( 'message' => is_string( $body ) ? $body : 'Unparseable response' );
156	}
157	$ok = ( $status < 400 ) && ! empty( $decoded['success'] );
158	return array(
159	'ok' => $ok,
160	'status' => $status,
161	'body' => $decoded,
162	);
163	}
164
165	private static function fail( int $status, string $message ): array {
166	return array(
167	'ok' => false,
168	'status' => $status,
169	'body' => array( 'success' => false, 'message' => $message ),
170	);
171	}
172	}
173