abilities
2 months ago
connectors
1 month ago
health
1 month ago
identity-crisis
1 month ago
sso
1 month ago
traits
9 months ago
webhooks
9 months ago
class-authorize-json-api.php
1 month ago
class-client.php
8 months ago
class-connection-assets.php
1 year ago
class-connection-notice.php
8 months ago
class-error-handler.php
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class-external-storage.php
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class-heartbeat.php
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class-initial-state.php
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class-manager.php
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class-nonce-handler.php
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class-package-version-tracker.php
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class-package-version.php
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class-partner.php
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class-plugin.php
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class-rest-connector.php
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class-secrets.php
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class-server-sandbox.php
2 months ago
class-site-health.php
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class-terms-of-service.php
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class-tokens-locks.php
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class-tokens.php
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class-tracking.php
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class-urls.php
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class-user-account-status.php
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class-users-connection-admin.php
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class-utils.php
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class-webhooks.php
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class-xmlrpc-async-call.php
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class-xmlrpc-connector.php
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interface-manager.php
4 years ago
interface-storage-provider.php
6 months ago
class-authorize-json-api.php
282 lines
| 1 | <?php |
| 2 | /** |
| 3 | * Authorize_Json_Api handler class. |
| 4 | * Used to handle connections via JSON API. |
| 5 | * Ported from the Jetpack class. |
| 6 | * |
| 7 | * @since 2.7.6 Ported from the Jetpack class. |
| 8 | * |
| 9 | * @package automattic/jetpack-connection |
| 10 | */ |
| 11 | |
| 12 | namespace Automattic\Jetpack\Connection; |
| 13 | |
| 14 | use Automattic\Jetpack\Redirect; |
| 15 | use Automattic\Jetpack\Status\Host; |
| 16 | use Jetpack_Options; |
| 17 | |
| 18 | /** |
| 19 | * Authorize_Json_Api handler class. |
| 20 | */ |
| 21 | class Authorize_Json_Api { |
| 22 | /** |
| 23 | * Verified data for JSON authorization request |
| 24 | * |
| 25 | * @since 2.7.6 |
| 26 | * |
| 27 | * @var array |
| 28 | */ |
| 29 | public $json_api_authorization_request = array(); |
| 30 | |
| 31 | /** |
| 32 | * Verifies the request by checking the signature |
| 33 | * |
| 34 | * @since jetpack-4.6.0 Method was updated to use `$_REQUEST` instead of `$_GET` and `$_POST`. Method also updated to allow |
| 35 | * passing in an `$environment` argument that overrides `$_REQUEST`. This was useful for integrating with SSO. |
| 36 | * @since 2.7.6 Ported from Jetpack to the Connection package. |
| 37 | * |
| 38 | * @param null|array $environment Value to override $_REQUEST. |
| 39 | * |
| 40 | * @return void |
| 41 | */ |
| 42 | public function verify_json_api_authorization_request( $environment = null ) { |
| 43 | $environment = $environment === null |
| 44 | ? $_REQUEST // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- nonce verification handled later in function and request data are 1) used to verify a cryptographic signature of the request data and 2) sanitized later in function. |
| 45 | : $environment; |
| 46 | |
| 47 | if ( ! isset( $environment['token'] ) ) { |
| 48 | wp_die( esc_html__( 'You must connect your Jetpack plugin to WordPress.com to use this feature.', 'jetpack-connection' ) ); |
| 49 | } |
| 50 | |
| 51 | list( $env_token,, $env_user_id ) = explode( ':', $environment['token'] ); |
| 52 | $token = ( new Tokens() )->get_access_token( (int) $env_user_id, $env_token ); |
| 53 | if ( ! $token || empty( $token->secret ) ) { |
| 54 | wp_die( esc_html__( 'You must connect your Jetpack plugin to WordPress.com to use this feature.', 'jetpack-connection' ) ); |
| 55 | } |
| 56 | |
| 57 | $die_error = __( 'Someone may be trying to trick you into giving them access to your site. Or it could be you just encountered a bug :). Either way, please close this window.', 'jetpack-connection' ); |
| 58 | |
| 59 | // Host has encoded the request URL, probably as a result of a bad http => https redirect. |
| 60 | if ( |
| 61 | preg_match( '/https?%3A%2F%2F/i', esc_url_raw( wp_unslash( $_GET['redirect_to'] ) ) ) > 0 // phpcs:ignore WordPress.Security.NonceVerification.Recommended, WordPress.Security.ValidatedSanitizedInput.InputNotValidated -- no site changes, we're erroring out. |
| 62 | ) { |
| 63 | /** |
| 64 | * Jetpack authorisation request Error. |
| 65 | * |
| 66 | * @since jetpack-7.5.0 |
| 67 | */ |
| 68 | do_action( 'jetpack_verify_api_authorization_request_error_double_encode' ); |
| 69 | $die_error = sprintf( |
| 70 | /* translators: %s is a URL */ |
| 71 | __( 'Your site is incorrectly double-encoding redirects from http to https. This is preventing Jetpack from authenticating your connection. Please visit our <a href="%s">support page</a> for details about how to resolve this.', 'jetpack-connection' ), |
| 72 | esc_url( Redirect::get_url( 'jetpack-support-double-encoding' ) ) |
| 73 | ); |
| 74 | } |
| 75 | |
| 76 | $jetpack_signature = new \Jetpack_Signature( $token->secret, (int) Jetpack_Options::get_option( 'time_diff' ) ); |
| 77 | |
| 78 | if ( isset( $environment['jetpack_json_api_original_query'] ) ) { |
| 79 | $signature = $jetpack_signature->sign_request( |
| 80 | $environment['token'], |
| 81 | $environment['timestamp'], |
| 82 | $environment['nonce'], |
| 83 | '', |
| 84 | 'GET', |
| 85 | $environment['jetpack_json_api_original_query'], |
| 86 | null, |
| 87 | true |
| 88 | ); |
| 89 | } else { |
| 90 | $signature = $jetpack_signature->sign_current_request( |
| 91 | array( |
| 92 | 'body' => null, |
| 93 | 'method' => 'GET', |
| 94 | ) |
| 95 | ); |
| 96 | } |
| 97 | |
| 98 | if ( ! $signature ) { |
| 99 | wp_die( |
| 100 | wp_kses( |
| 101 | $die_error, |
| 102 | array( |
| 103 | 'a' => array( |
| 104 | 'href' => array(), |
| 105 | ), |
| 106 | ) |
| 107 | ) |
| 108 | ); |
| 109 | } elseif ( is_wp_error( $signature ) ) { |
| 110 | wp_die( |
| 111 | wp_kses( |
| 112 | $die_error, |
| 113 | array( |
| 114 | 'a' => array( |
| 115 | 'href' => array(), |
| 116 | ), |
| 117 | ) |
| 118 | ) |
| 119 | ); |
| 120 | } elseif ( ! hash_equals( $signature, $environment['signature'] ) ) { |
| 121 | if ( is_ssl() ) { |
| 122 | // If we signed an HTTP request on the Jetpack Servers, but got redirected to HTTPS by the local blog, check the HTTP signature as well. |
| 123 | $signature = $jetpack_signature->sign_current_request( |
| 124 | array( |
| 125 | 'scheme' => 'http', |
| 126 | 'body' => null, |
| 127 | 'method' => 'GET', |
| 128 | ) |
| 129 | ); |
| 130 | if ( ! $signature || is_wp_error( $signature ) || ! hash_equals( $signature, $environment['signature'] ) ) { |
| 131 | wp_die( |
| 132 | wp_kses( |
| 133 | $die_error, |
| 134 | array( |
| 135 | 'a' => array( |
| 136 | 'href' => array(), |
| 137 | ), |
| 138 | ) |
| 139 | ) |
| 140 | ); |
| 141 | } |
| 142 | } else { |
| 143 | wp_die( |
| 144 | wp_kses( |
| 145 | $die_error, |
| 146 | array( |
| 147 | 'a' => array( |
| 148 | 'href' => array(), |
| 149 | ), |
| 150 | ) |
| 151 | ) |
| 152 | ); |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | $timestamp = (int) $environment['timestamp']; |
| 157 | $nonce = stripslashes( (string) $environment['nonce'] ); |
| 158 | |
| 159 | if ( ! ( new Nonce_Handler() )->add( $timestamp, $nonce ) ) { |
| 160 | // De-nonce the nonce, at least for 5 minutes. |
| 161 | // We have to reuse this nonce at least once (used the first time when the initial request is made, used a second time when the login form is POSTed). |
| 162 | $old_nonce_time = get_option( "jetpack_nonce_{$timestamp}_{$nonce}" ); |
| 163 | if ( $old_nonce_time < time() - 300 ) { |
| 164 | wp_die( esc_html__( 'The authorization process expired. Please go back and try again.', 'jetpack-connection' ) ); |
| 165 | } |
| 166 | } |
| 167 | |
| 168 | $data = json_decode( |
| 169 | base64_decode( stripslashes( $environment['data'] ) ) // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_decode |
| 170 | ); |
| 171 | $data_filters = array( |
| 172 | 'state' => 'opaque', |
| 173 | 'client_id' => 'int', |
| 174 | 'client_title' => 'string', |
| 175 | 'client_image' => 'url', |
| 176 | ); |
| 177 | |
| 178 | foreach ( $data_filters as $key => $sanitation ) { |
| 179 | if ( ! isset( $data->$key ) ) { |
| 180 | wp_die( |
| 181 | wp_kses( |
| 182 | $die_error, |
| 183 | array( |
| 184 | 'a' => array( |
| 185 | 'href' => array(), |
| 186 | ), |
| 187 | ) |
| 188 | ) |
| 189 | ); |
| 190 | } |
| 191 | |
| 192 | switch ( $sanitation ) { |
| 193 | case 'int': |
| 194 | $this->json_api_authorization_request[ $key ] = (int) $data->$key; |
| 195 | break; |
| 196 | case 'opaque': |
| 197 | $this->json_api_authorization_request[ $key ] = (string) $data->$key; |
| 198 | break; |
| 199 | case 'string': |
| 200 | $this->json_api_authorization_request[ $key ] = wp_kses( (string) $data->$key, array() ); |
| 201 | break; |
| 202 | case 'url': |
| 203 | $this->json_api_authorization_request[ $key ] = esc_url_raw( (string) $data->$key ); |
| 204 | break; |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | if ( empty( $this->json_api_authorization_request['client_id'] ) ) { |
| 209 | wp_die( |
| 210 | wp_kses( |
| 211 | $die_error, |
| 212 | array( |
| 213 | 'a' => array( |
| 214 | 'href' => array(), |
| 215 | ), |
| 216 | ) |
| 217 | ) |
| 218 | ); |
| 219 | } |
| 220 | } |
| 221 | |
| 222 | /** |
| 223 | * Add the Access Code details to the public-api.wordpress.com redirect. |
| 224 | * |
| 225 | * @since 2.7.6 Ported from Jetpack to the Connection package. |
| 226 | * |
| 227 | * @param string $redirect_to URL. |
| 228 | * @param string $original_redirect_to URL. |
| 229 | * @param \WP_User $user WP_User for the redirect. |
| 230 | * |
| 231 | * @return string |
| 232 | */ |
| 233 | public function add_token_to_login_redirect_json_api_authorization( $redirect_to, $original_redirect_to, $user ) { |
| 234 | return add_query_arg( |
| 235 | urlencode_deep( |
| 236 | array( |
| 237 | 'jetpack-code' => get_user_meta( |
| 238 | $user->ID, |
| 239 | 'jetpack_json_api_' . $this->json_api_authorization_request['client_id'], |
| 240 | true |
| 241 | ), |
| 242 | 'jetpack-user-id' => (int) $user->ID, |
| 243 | 'jetpack-state' => $this->json_api_authorization_request['state'], |
| 244 | ) |
| 245 | ), |
| 246 | $redirect_to |
| 247 | ); |
| 248 | } |
| 249 | |
| 250 | /** |
| 251 | * If someone logs in to approve API access, store the Access Code in usermeta. |
| 252 | * |
| 253 | * @since 2.7.6 Ported from Jetpack to the Connection package. |
| 254 | * |
| 255 | * @param string $user_login Unused. |
| 256 | * @param \WP_User $user User logged in. |
| 257 | * |
| 258 | * @return void |
| 259 | */ |
| 260 | public function store_json_api_authorization_token( $user_login, $user ) { |
| 261 | add_filter( 'login_redirect', array( $this, 'add_token_to_login_redirect_json_api_authorization' ), 10, 3 ); |
| 262 | add_filter( 'allowed_redirect_hosts', array( Host::class, 'allow_wpcom_public_api_domain' ) ); |
| 263 | $token = wp_generate_password( 32, false ); |
| 264 | update_user_meta( $user->ID, 'jetpack_json_api_' . $this->json_api_authorization_request['client_id'], $token ); |
| 265 | } |
| 266 | |
| 267 | /** |
| 268 | * HTML for the JSON API authorization notice. |
| 269 | * |
| 270 | * @since 2.7.6 Ported from Jetpack to the Connection package. |
| 271 | * |
| 272 | * @return string |
| 273 | */ |
| 274 | public function login_message_json_api_authorization() { |
| 275 | return '<p class="message">' . sprintf( |
| 276 | /* translators: Name/image of the client requesting authorization */ |
| 277 | esc_html__( '%s wants to access your site’s data. Log in to authorize that access.', 'jetpack-connection' ), |
| 278 | '<strong>' . esc_html( $this->json_api_authorization_request['client_title'] ) . '</strong>' |
| 279 | ) . '<img src="' . esc_url( $this->json_api_authorization_request['client_image'] ) . '" /></p>'; |
| 280 | } |
| 281 | } |
| 282 |