AlkantarClanX12
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<?php
/**
* File: PageSpeed_Api.php
*
* Controls Google OAuth2.0 requests both for authentication and queries against the PageSpeed API.
*
* @since 2.3.0 Update to utilize OAuth2.0 and overhaul of feature.
*
* @package W3TC
*/
namespace W3TC;
/**
* PageSpeed API.
*
* @since 2.3.0
*/
class PageSpeed_Api {
/**
* Config.
*
* @var object
*/
private $config;
/**
* W3TCG_Google_Client.
*
* @var object
*/
public $client;
/**
* W3TC API server base URL. Overwritten by W3TC_API2_URL constant.
*
* @var string
*/
private $w3tc_api_base_url = 'https://api2.w3-edge.com';
/**
* Retry Attemps. Overwritten by W3TC_PAGESPEED_MAX_ATTEMPTS constant.
*
* @var string
*/
private $retry_attempts = 4;
/**
* Google PageSpeed API URL. Overwritten by W3TC_PAGESPEED_API_URL constant.
*
* @var string
*/
private $pagespeed_api_base_url = 'https://www.googleapis.com/pagespeedonline/v5/runPagespeed';
/**
* PageSpeed API constructor.
*
* @since 2.3.0
*
* @param string $access_token_json API access token JSON.
*/
public function __construct( $access_token_json = null ) {
$this->config = Dispatcher::config();
$this->client = new \W3TCG_Google_Client();
$this->client->setApplicationName( 'W3TC PageSpeed Analyzer' );
$this->client->addScope( 'openid' );
$this->client->setAccessType( 'offline' );
$this->client->setApprovalPrompt( 'force' );
$this->client->setDefer( true );
if ( ! empty( $access_token_json ) ) {
$this->client->setAccessToken( $access_token_json );
$this->maybe_refresh_token();
}
}
/**
* Run PageSpeed API.
*
* @since 2.3.0
*
* @return void
*/
public function run() {
add_action( 'admin_notices', array( $this, 'errors_notice' ) );
}
/**
* Fully analyze URL via PageSpeed API.
*
* @since 2.3.0
*
* @param string $url URL to analyze via PageSpeed API.
*
* @return array
*/
public function analyze( $url ) {
$mobile = $this->analyze_strategy( $url, 'mobile' );
$desktop = $this->analyze_strategy( $url, 'desktop' );
return array(
'mobile' => $mobile,
'desktop' => $desktop,
'test_url' => Util_Environment::url_format(
$this->get_pagespeed_url(),
array( 'url' => $url )
),
);
}
/**
* Analyze URL via PageSpeed API using strategy.
*
* @since 2.3.0
*
* @param string $url URL to analyze.
* @param string $strategy Strategy to use desktop/mobile.
*
* @return array
*/
public function analyze_strategy( $url, $strategy ) {
$data = $this->process_request(
array(
'url' => $url,
'category' => 'performance',
'strategy' => $strategy,
)
);
if ( ! empty( Util_PageSpeed::get_value_recursive( $data, array( 'error', 'code' ) ) ) ) {
return array(
'error' => array(
'code' => Util_PageSpeed::get_value_recursive( $data, array( 'error', 'code' ) ),
'message' => Util_PageSpeed::get_value_recursive( $data, array( 'error', 'message' ) ),
),
);
}
return array_merge_recursive(
PageSpeed_Data::prepare_pagespeed_data( $data ),
PageSpeed_Instructions::get_pagespeed_instructions()
);
}
/**
* Make API request.
*
* @since 2.3.0
*
* @param string $query API request query.
*
* @return array
*/
public function process_request( $query ) {
$access_token_json = $this->client->getAccessToken();
if ( empty( $access_token_json ) ) {
return array(
'error' => array(
'code' => 403,
'message' => __( 'Missing Google access token.', 'w3-total-cache' ),
),
);
}
$access_token = json_decode( $access_token_json );
$request = Util_Environment::url_format(
$this->get_pagespeed_url(),
array_merge(
$query,
array(
'quotaUser' => Util_Http::generate_site_id(),
'access_token' => $access_token->access_token,
)
)
);
// Attempt the request up to x times with an increasing delay between each attempt. Uses W3TC_PAGESPEED_MAX_ATTEMPTS constant if defined.
$attempts = 0;
while ( ++$attempts <= $this->get_max_attempts() ) {
try {
$response = wp_remote_get(
$request,
array(
'timeout' => 60,
)
);
if ( ! is_wp_error( $response ) && 200 === $response['response']['code'] ) {
break;
}
} catch ( \Exception $e ) {
if ( $attempts >= $this->get_max_attempts() ) {
return array(
'error' => array(
'code' => 500,
'message' => $e->getMessage(),
),
);
}
}
// Sleep for a cumulative .5 seconds each attempt.
usleep( $attempts * 500000 );
};
if ( isset( $response['response']['code'] ) && 200 !== $response['response']['code'] ) {
// Google PageSpeed Insights sometimes will return a 500 and message body with details so we still grab the body response.
$decoded_body = json_decode( wp_remote_retrieve_body( $response ), true );
return array(
'error' => array(
'code' => $response['response']['code'],
'message' => ( ! empty( $decoded_body['error']['message'] ) ? $decoded_body['error']['message'] : $response['response']['message'] ),
),
);
}
return json_decode( wp_remote_retrieve_body( $response ), true );
}
/**
* Checks if the Google access token is expired and attempts to refresh.
*
* @since 2.3.0
*
* @return void
*/
public function maybe_refresh_token() {
$site_id = Util_Http::generate_site_id();
$w3tc_pagespeed_key = $this->config->get_string( 'widget.pagespeed.w3tc_pagespeed_key' );
if ( $this->client->isAccessTokenExpired() && ! empty( $w3tc_pagespeed_key ) ) {
$this->refresh_token( $site_id, $w3tc_pagespeed_key );
}
}
/**
* Refreshes the Google access token if a valid refresh token is defined.
*
* @param string $site_id Site ID.
* @param string $w3tc_pagespeed_key W3 API access key.
*
* @return string
*/
public function refresh_token( $site_id, $w3tc_pagespeed_key ) {
if ( empty( $site_id ) || empty( $w3tc_pagespeed_key ) ) {
update_option(
'w3tcps_refresh_fail',
__( 'Google PageSpeed access token refresh missing required parameters!', 'w3-total-cache' )
);
return;
}
$request = $this->get_w3tc_api_url( 'google/refresh-token' ) . '/' . rawurlencode( $site_id ) . '/' . rawurlencode( $w3tc_pagespeed_key );
$response = wp_remote_get(
$request,
array(
'timeout' => 60,
)
);
$response_body_json = wp_remote_retrieve_body( $response );
$response_body = json_decode( $response_body_json, true );
if ( is_wp_error( $response ) ) {
return wp_json_encode(
array(
'error' => array(
'code' => $response->get_error_code(),
'message' => $response->get_error_message(),
),
)
);
} elseif ( isset( $response_body['error']['code'] ) && 200 !== $response_body['error']['code'] ) {
if ( 'refresh-token-missing-site-id' === $response_body['error']['id'] ) {
$message = __( 'No site ID provided for access key refresh!', 'w3-total-cache' );
} elseif ( 'refresh-token-missing-w3tc-pagespeed-key' === $response_body['error']['id'] ) {
$message = __( 'No W3TC API key provided for access key refresh!', 'w3-total-cache' );
} elseif ( 'refresh-token-not-found' === $response_body['error']['id'] ) {
$message = __( 'No matching Google access record found for W3TC API key!', 'w3-total-cache' );
} elseif ( 'refresh-token-missing-refresh-token' === $response_body['error']['id'] ) {
$message = __( 'Matching Google access record found but the refresh token value is blank!', 'w3-total-cache' );
}
update_option(
'w3tcps_refresh_fail',
__( 'Google PageSpeed access token refresh failed.', 'w3-total-cache' )
);
update_option(
'w3tcps_refresh_fail_message',
$message
);
// Reset the token and key.
$this->config->set( 'widget.pagespeed.access_token', '' );
$this->config->set( 'widget.pagespeed.w3tc_pagespeed_key', '' );
$this->config->save();
return;
}
$access_token = $response_body_json;
if ( empty( $access_token ) || empty( $response_body['access_token'] ) ) {
update_option(
'w3tcps_refresh_fail',
__( 'Google PageSpeed access token refresh failed due to response missing access token.', 'w3-total-cache' )
);
return;
}
$this->config->set( 'widget.pagespeed.access_token', $access_token );
$this->config->save();
}
/**
* Get W3TC PageSpeed API max attempts.
*
* @since 2.3.0
*
* @return int
*/
public function get_max_attempts() {
return defined( 'W3TC_PAGESPEED_MAX_ATTEMPTS' ) && W3TC_PAGESPEED_MAX_ATTEMPTS ? W3TC_PAGESPEED_MAX_ATTEMPTS : $this->retry_attempts;
}
/**
* Get Google PageSpeed API URL.
*
* @since 2.3.0
*
* @return string
*/
public function get_pagespeed_url() {
return defined( 'W3TC_PAGESPEED_API_URL' ) && W3TC_PAGESPEED_API_URL ? W3TC_PAGESPEED_API_URL : $this->pagespeed_api_base_url;
}
/**
* Get W3TC API server URL target.
*
* @since 2.3.0
*
* @param string $target API target URI.
*
* @return string
*/
public function get_w3tc_api_url( $target ) {
return defined( 'W3TC_API2_URL' ) && W3TC_API2_URL ?
trailingslashit( W3TC_API2_URL ) . $target :
trailingslashit( $this->w3tc_api_base_url ) . $target;
}
/**
* PageSpeed authorize admin notice.
*
* @since 2.3.0
*/
public function errors_notice() {
if ( current_user_can( 'manage_options' ) ) {
switch ( true ) {
case get_option( 'w3tcps_authorize_success' ):
echo '<div class="updated is-dismissible"><p>' . esc_html( get_option( 'w3tcps_authorize_success' ) ) . '</p></div>';
delete_option( 'w3tcps_authorize_success' );
break;
case get_option( 'w3tcps_authorize_fail' ):
echo '<div class="error is-dismissible"><p>' . esc_html( get_option( 'w3tcps_authorize_fail' ) ) . '</p><p>' . wp_kses( get_option( 'w3tcps_authorize_fail_message' ), Util_PageSpeed::get_allowed_tags() ) . '</p></div>';
delete_option( 'w3tcps_authorize_fail' );
delete_option( 'w3tcps_authorize_fail_message' );
break;
case get_option( 'w3tcps_refresh_fail' ):
echo '<div class="error is-dismissible"><p>' . esc_html( get_option( 'w3tcps_refresh_fail' ) ) . '</p><p>' . wp_kses( get_option( 'w3tcps_refresh_fail_message' ), Util_PageSpeed::get_allowed_tags() ) . '</p></div>';
delete_option( 'w3tcps_refresh_fail' );
delete_option( 'w3tcps_refresh_fail_message' );
break;
case get_option( 'w3tcps_revoke_fail' ):
echo '<div class="error is-dismissible"><p>' . esc_html( get_option( 'w3tcps_revoke_fail' ) ) . '</p><p>' . wp_kses( get_option( 'w3tcps_revoke_fail_message' ), Util_PageSpeed::get_allowed_tags() ) . '</p></div>';
delete_option( 'w3tcps_revoke_fail' );
delete_option( 'w3tcps_revoke_fail_message' );
break;
}
}
}
/**
* Reset authentication.
*
* @since 2.3.0
*/
public function reset() {
$access_token = $this->client->getAccessToken();
$site_id = Util_Http::generate_site_id();
$w3tc_pagespeed_key = $this->config->get_string( 'widget.pagespeed.w3tc_pagespeed_key' );
if ( empty( $access_token ) || empty( $site_id ) || empty( $w3tc_pagespeed_key ) ) {
update_option(
'w3tcps_revoke_fail',
__( 'Google PageSpeed access token revocation missing required parameters!', 'w3-total-cache' )
);
return;
}
$request = $this->get_w3tc_api_url( 'google/revoke-token' ) . '/' . rawurlencode( $access_token ) . '/' . rawurlencode( $site_id ) . '/' . rawurlencode( $w3tc_pagespeed_key );
$response = wp_remote_get(
$request,
array(
'timeout' => 60,
)
);
$response_body_json = wp_remote_retrieve_body( $response );
$response_body = json_decode( $response_body_json, true );
if ( is_wp_error( $response ) ) {
return wp_json_encode(
array(
'error' => array(
'code' => $response->get_error_code(),
'message' => $response->get_error_message(),
),
)
);
} elseif ( isset( $response_body['error']['code'] ) && 200 !== $response_body['error']['code'] ) {
if ( 'revoke-token-access-token-missing' === $response_body['error']['id'] ) {
$message = __( 'No access token provided for revoke!', 'w3-total-cache' );
} elseif ( 'revoke-token-api-key-missing' === $response_body['error']['id'] ) {
$message = __( 'No W3TC API key provided for revoke!', 'w3-total-cache' );
} elseif ( 'revoke-token-not-found' === $response_body['error']['id'] ) {
$message = __( 'No matching Google access record found for W3TC API key!', 'w3-total-cache' );
}
update_option(
'w3tcps_revoke_fail',
__( 'Google PageSpeed Access Token revocation failed.', 'w3-total-cache' )
);
update_option(
'w3tcps_revoke_fail_message',
$message
);
return;
}
$this->config->set( 'widget.pagespeed.access_token', '' );
$this->config->set( 'widget.pagespeed.w3tc_pagespeed_key', '' );
$this->config->save();
}
}