firebase-authentication
Last commit date
admin
3 weeks ago
includes
3 weeks ago
languages
3 weeks ago
public
3 weeks ago
views
3 weeks ago
README.txt
3 weeks ago
class-mo-firebase-config.php
3 weeks ago
class-mo-firebase-contact-us.php
3 weeks ago
firebase-authentication.php
3 weeks ago
index.php
3 weeks ago
uninstall.php
3 weeks ago
class-mo-firebase-config.php
377 lines
| 1 | <?php |
| 2 | /** |
| 3 | * File containing Firebase API calls |
| 4 | * |
| 5 | * @package Firebase Config |
| 6 | */ |
| 7 | |
| 8 | if ( ! defined( 'ABSPATH' ) ) { |
| 9 | exit; |
| 10 | } |
| 11 | |
| 12 | /** |
| 13 | * Class containing Firebase API call functions |
| 14 | */ |
| 15 | class Mo_Firebase_Config { |
| 16 | /** |
| 17 | * Initializing the test config control |
| 18 | */ |
| 19 | public function __construct() { |
| 20 | add_action( 'init', array( $this, 'testconfig' ) ); |
| 21 | } |
| 22 | /** |
| 23 | * Test configuration check |
| 24 | */ |
| 25 | public function testconfig() { |
| 26 | if ( isset( $_REQUEST['mo_action'] ) && 'firebaselogin' === sanitize_text_field( wp_unslash( $_REQUEST['mo_action'] ) ) && isset( $_REQUEST['test'] ) && 'true' === sanitize_text_field( wp_unslash( $_REQUEST['test'] ) ) && isset( $_REQUEST['mo_firebase_auth_test_config_field'] ) && wp_verify_nonce( sanitize_text_field( wp_unslash( $_REQUEST['mo_firebase_auth_test_config_field'] ) ), 'mo_firebase_auth_test_config_form' ) ) { |
| 27 | |
| 28 | $project_id = get_option( 'mo_firebase_auth_project_id' ); |
| 29 | $api_key = get_option( 'mo_firebase_auth_api_key' ); |
| 30 | |
| 31 | $test_username = isset( $_POST['test_username'] ) ? sanitize_text_field( wp_unslash( $_POST['test_username'] ) ) : ''; |
| 32 | $test_password = isset( $_POST['test_password'] ) ? sanitize_text_field( wp_unslash( $_POST['test_password'] ) ) : ''; |
| 33 | |
| 34 | $response = $this->mo_firebase_authenticate_call( $test_username, $test_password ); |
| 35 | $response = json_decode( $response, true ); |
| 36 | |
| 37 | if ( isset( $response['error'] ) ) { |
| 38 | $fb_error = $response['error']['message']; |
| 39 | if ( 'INVALID_PASSWORD' === $fb_error ) { |
| 40 | $fb_error = 'The password is invalid or the user does not have a password.'; |
| 41 | } elseif ( 'EMAIL_NOT_FOUND' === $fb_error ) { |
| 42 | $fb_error = 'There is no user record corresponding to this identifier. The user may have been deleted.'; |
| 43 | } elseif ( 'INVALID_EMAIL' === $fb_error ) { |
| 44 | $fb_error = 'The email address is badly formatted.'; |
| 45 | } |
| 46 | echo '<div style="font-family:Calibri;padding: 0 30%;">'; |
| 47 | echo '<h1 style="color:#d9534f;text-align:center;">test failed</h1>'; |
| 48 | echo '<h4 style="text-align:center;"><b>ERROR :</b>' . esc_attr( $fb_error ) . '</h4>'; |
| 49 | echo '</div>'; |
| 50 | echo '<div style="padding: 10px;"></div><div style="position:absolute;padding:0 46%;"><input style="padding:1%;width:100px;height:30px;background: #0091CD none repeat scroll 0% 0%;cursor: pointer;font-size:15px;border-width: 1px;border-style: solid;border-radius: 3px;white-space: nowrap;box-sizing: border-box;border-color: #0073AA;box-shadow: 0px 1px 0px rgba(120, 200, 230, 0.6) inset;color: #FFF;"type="button" value="Close" onClick="self.close();"></div>'; |
| 51 | exit(); |
| 52 | } else { |
| 53 | $id_token = $response['idToken']; |
| 54 | $payload = $this->decode_jwt( $id_token ); |
| 55 | echo '<div style="font-family:Calibri;margin: auto;padding:5%;">'; |
| 56 | echo '<h1 style="color:#00C851;text-align:center;">Test Successful !</h1>'; |
| 57 | echo '<style>table{border-collapse:collapse;}th {background-color: #eee; text-align: center; padding: 8px; border-width:1px; border-style:solid; border-color:#212121;}tr:nth-child(odd) {background-color: #f2f2f2;} td{padding:8px;border-width:1px; border-style:solid; border-color:#212121;}</style>'; |
| 58 | echo '<h3 style="text-align:center;">Test Configuration</h3><table style="margin: auto;"><tr><th>Attribute Name</th><th>Attribute Value</th></tr>'; |
| 59 | $this->testattrmappingconfig( '', $payload ); |
| 60 | echo '</table></div>'; |
| 61 | echo '<div style="margin: auto;position:absolute;padding:0 40%;"><input style="margin: auto;position:absolute; padding:8px;width:12%;background: #0091CD none repeat scroll 0% 0%;cursor: pointer;font-size:15px;border-width: 1px;border-style: solid;border-radius: 3px;white-space: nowrap;box-sizing: border-box;border-color: #0073AA;box-shadow: 0px 1px 0px rgba(120, 200, 230, 0.6) inset;color: #FFF;"type="button" value="Done" onClick="self.close();"></div>'; |
| 62 | exit(); |
| 63 | } |
| 64 | } |
| 65 | } |
| 66 | /** |
| 67 | * Processing test configuration |
| 68 | * |
| 69 | * @param string $nestedprefix . |
| 70 | * @param array $payload . |
| 71 | */ |
| 72 | public function testattrmappingconfig( $nestedprefix, $payload ) { |
| 73 | foreach ( $payload as $key => $value ) { |
| 74 | if ( is_array( $value ) || is_object( $value ) ) { |
| 75 | if ( ! empty( $nestedprefix ) ) { |
| 76 | $nestedprefix .= '.'; |
| 77 | } |
| 78 | $this->testattrmappingconfig( $nestedprefix . $key, $value ); |
| 79 | } else { |
| 80 | echo '<tr><td>'; |
| 81 | if ( ! empty( $nestedprefix ) ) { |
| 82 | echo esc_attr( $nestedprefix ) . '.'; |
| 83 | } |
| 84 | echo esc_attr( $key ) . '</td><td>' . esc_attr( $value ) . '</td></tr>'; |
| 85 | } |
| 86 | } |
| 87 | } |
| 88 | /** |
| 89 | * Decode JWT token. |
| 90 | * |
| 91 | * @param string $jwt_token firebase ID token. |
| 92 | */ |
| 93 | public function decode_jwt( $jwt_token ) { |
| 94 | $flag = 0; |
| 95 | $pieces = explode( '.', $jwt_token ); |
| 96 | $jwt_data = $pieces[0] . '.' . $pieces[1]; |
| 97 | $jwt_signature = str_replace( array( '-', '_' ), array( '+', '/' ), $pieces[2] ); |
| 98 | $jwt_signature = base64_decode( $jwt_signature ); //phpcs:ignore -- ignoring DiscouragedPHPFunctions warning as this line of code is used for decoding JWT signature part. |
| 99 | $jwt_header = json_decode( base64_decode( str_replace( array( '-', '_' ), array( '+', '/' ), $pieces[0] ) ), true ); //phpcs:ignore -- ignoring DiscouragedPHPFunctions warning as this line of code is used for decoding JWT header part. |
| 100 | |
| 101 | $alg = $jwt_header['alg']; |
| 102 | $kid = $jwt_header['kid']; |
| 103 | |
| 104 | if ( strpos( $alg, 'RS' ) !== false ) { |
| 105 | $algorithm = 'RSA'; |
| 106 | $sha = explode( 'RS', $alg )[1]; |
| 107 | } |
| 108 | |
| 109 | $jwt_raw_certificate = $this->mo_firebase_auth_get_cert_from_kid( $kid ); |
| 110 | |
| 111 | $public_key = ''; |
| 112 | $parts = explode( '-----', $jwt_raw_certificate ); |
| 113 | |
| 114 | if ( preg_match( '/\r\n|\r|\n/', $parts[2] ) ) { |
| 115 | $public_key = $jwt_raw_certificate; |
| 116 | } else { |
| 117 | $encoding = '-----' . $parts[1] . "-----\n"; |
| 118 | $offset = 0; |
| 119 | $segment = substr( $parts[2], $offset, 64 ); |
| 120 | while ( $segment ) { |
| 121 | $encoding .= $segment . "\n"; |
| 122 | $offset += 64; |
| 123 | $segment = substr( $parts[2], $offset, 64 ); |
| 124 | } |
| 125 | $encoding .= '-----' . $parts[3] . "-----\n"; |
| 126 | $public_key = $encoding; |
| 127 | } |
| 128 | |
| 129 | switch ( $sha ) { |
| 130 | case '256': |
| 131 | $verified = openssl_verify( $jwt_data, $jwt_signature, $public_key, OPENSSL_ALGO_SHA256 ); |
| 132 | break; |
| 133 | case '384': |
| 134 | $verified = openssl_verify( $jwt_data, $jwt_signature, $public_key, OPENSSL_ALGO_SHA384 ); |
| 135 | break; |
| 136 | case '512': |
| 137 | $verified = openssl_verify( $jwt_data, $jwt_signature, $public_key, OPENSSL_ALGO_SHA512 ); |
| 138 | break; |
| 139 | default: |
| 140 | $verified = false; |
| 141 | break; |
| 142 | } |
| 143 | |
| 144 | if ( ! $verified ) { |
| 145 | echo 'Invalid Token'; |
| 146 | exit(); |
| 147 | } |
| 148 | |
| 149 | $jwt_payload = json_decode( base64_decode( $pieces[1] ), true ); //phpcs:ignore -- ignoring DiscouragedPHPFunctions warning as this line of code is used for decoding JWT payload part. |
| 150 | |
| 151 | if ( empty( $jwt_payload['exp'] ) || time() >= (int) $jwt_payload['exp'] ) { |
| 152 | echo 'Token expired'; |
| 153 | exit(); |
| 154 | } |
| 155 | |
| 156 | $expected_project_id = get_option( 'mo_firebase_auth_project_id' ); |
| 157 | if ( $expected_project_id && ( empty( $jwt_payload['aud'] ) || $jwt_payload['aud'] !== $expected_project_id ) ) { |
| 158 | echo 'Invalid token audience'; |
| 159 | exit(); |
| 160 | } |
| 161 | |
| 162 | return $jwt_payload; |
| 163 | |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * Processing Firebase JWT |
| 168 | * |
| 169 | * @param mixed $kid kid. |
| 170 | * |
| 171 | * @return mixed jwt cert |
| 172 | */ |
| 173 | public function mo_firebase_auth_get_cert_from_kid( $kid ) { |
| 174 | $flag = $this->mo_firebase_auth_get_kid( $kid ); |
| 175 | if ( 0 === $flag ) { |
| 176 | $firebaselogin = new Miniorange_Firebase_Authentication(); |
| 177 | $firebaselogin->mo_firebase_auth_store_certificates(); |
| 178 | $flag = $this->mo_firebase_auth_get_kid( $kid ); |
| 179 | } |
| 180 | if ( 0 !== $flag ) { |
| 181 | if ( 1 === $flag ) { |
| 182 | $jwt_raw_certificate = get_option( 'mo_firebase_auth_cert1' ); |
| 183 | } elseif ( 2 === $flag ) { |
| 184 | $jwt_raw_certificate = get_option( 'mo_firebase_auth_cert2' ); |
| 185 | } elseif ( 3 === $flag ) { |
| 186 | $jwt_raw_certificate = get_option( 'mo_firebase_auth_cert3' ); |
| 187 | } |
| 188 | } else { |
| 189 | echo 'Please provide a valid certificate. Contact your administrator.'; |
| 190 | exit; |
| 191 | } |
| 192 | return $jwt_raw_certificate; |
| 193 | } |
| 194 | |
| 195 | /** |
| 196 | * Function included in JWT processing |
| 197 | * |
| 198 | * @param mixed $kid kid. |
| 199 | * |
| 200 | * @return int |
| 201 | */ |
| 202 | public function mo_firebase_auth_get_kid( $kid ) { |
| 203 | $flag = 0; |
| 204 | $kid_stored = get_option( 'mo_firebase_auth_kid1' ); |
| 205 | if ( $kid_stored !== $kid ) { |
| 206 | $flag = 2; |
| 207 | $kid_stored = get_option( 'mo_firebase_auth_kid2' ); |
| 208 | if ( $kid_stored !== $kid ) { |
| 209 | $flag = 3; |
| 210 | $kid_stored = get_option( 'mo_firebase_auth_kid3' ); |
| 211 | if ( $kid_stored !== $kid ) { |
| 212 | $flag = 0; |
| 213 | } |
| 214 | } |
| 215 | } else { |
| 216 | $flag = 1; |
| 217 | } |
| 218 | return $flag; |
| 219 | } |
| 220 | |
| 221 | /** |
| 222 | * Check the user and set the session or return WP error |
| 223 | * |
| 224 | * @param mixed $fb_idtoken firebase Id token. |
| 225 | * |
| 226 | * @return object WP_User/WP_Error . |
| 227 | */ |
| 228 | public function mo_fb_login_user( $fb_idtoken ) { |
| 229 | |
| 230 | $payload = $this->decode_jwt( $fb_idtoken ); |
| 231 | |
| 232 | $user = $this->get_user( $payload ); |
| 233 | if ( is_wp_error( $user ) ) { |
| 234 | return $user; |
| 235 | } else { |
| 236 | $user_id = $user->ID; |
| 237 | wp_set_auth_cookie( $user_id, true ); |
| 238 | wp_safe_redirect( home_url() ); |
| 239 | exit; |
| 240 | } |
| 241 | |
| 242 | } |
| 243 | |
| 244 | /** |
| 245 | * Get the user object from WordPress |
| 246 | * |
| 247 | * @param array $jwt_payload Firebase Id token payload. |
| 248 | */ |
| 249 | public function get_user( $jwt_payload ) { |
| 250 | if ( isset( $jwt_payload['email'] ) ) { |
| 251 | $email = $jwt_payload['email']; |
| 252 | $email_verified = ! empty( $jwt_payload['email_verified'] ); |
| 253 | |
| 254 | // By default only Firebase-verified emails may log in. Admins can opt in |
| 255 | // to allow unverified emails via the "Allow login if email is not verified" setting. |
| 256 | if ( ! $email_verified && ! get_option( 'mo_firebase_allow_unverified_email_login' ) ) { |
| 257 | return new WP_Error( |
| 258 | 'firebase_email_not_verified', |
| 259 | __( 'Your email is not verified. Please verify your email before logging in.', 'firebase-authentication' ) |
| 260 | ); |
| 261 | } |
| 262 | |
| 263 | $firebase_uid = isset( $jwt_payload['sub'] ) ? $jwt_payload['sub'] : ( isset( $jwt_payload['user_id'] ) ? $jwt_payload['user_id'] : '' ); |
| 264 | $user = null; |
| 265 | |
| 266 | if ( $firebase_uid ) { |
| 267 | $bound_users = get_users( |
| 268 | array( |
| 269 | 'meta_key' => 'mo_firebase_user_uid', |
| 270 | 'meta_value' => $firebase_uid, |
| 271 | 'number' => 1, |
| 272 | ) |
| 273 | ); |
| 274 | if ( ! empty( $bound_users ) ) { |
| 275 | $user = $bound_users[0]; |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | if ( ! $user ) { |
| 280 | $user = get_user_by( 'email', $email ); |
| 281 | if ( ! $user ) { |
| 282 | $user = get_user_by( 'login', $email ); |
| 283 | } |
| 284 | } |
| 285 | |
| 286 | if ( $user ) { |
| 287 | if ( $firebase_uid ) { |
| 288 | update_user_meta( $user->ID, 'mo_firebase_user_uid', $firebase_uid ); |
| 289 | } |
| 290 | return $user; |
| 291 | } |
| 292 | |
| 293 | $user_password = wp_generate_password( 10, false ); |
| 294 | |
| 295 | $userdata = array( |
| 296 | 'user_login' => $email, |
| 297 | 'user_pass' => $user_password, |
| 298 | 'user_email' => $email, |
| 299 | ); |
| 300 | |
| 301 | $user_id = wp_insert_user( $userdata ); |
| 302 | |
| 303 | if ( ! is_wp_error( $user_id ) ) { |
| 304 | update_user_meta( $user_id, 'mo_firebase_user_dn', false ); |
| 305 | if ( $firebase_uid ) { |
| 306 | update_user_meta( $user_id, 'mo_firebase_user_uid', $firebase_uid ); |
| 307 | } |
| 308 | } |
| 309 | |
| 310 | return get_user_by( 'email', $email ); |
| 311 | } |
| 312 | } |
| 313 | /** |
| 314 | * Function to call Firebase email password API |
| 315 | * |
| 316 | * @param string $url . |
| 317 | * @param string $headers . |
| 318 | * @param string $body . |
| 319 | */ |
| 320 | public function mo_fb_post_api( $url, $headers, $body ) { |
| 321 | |
| 322 | $args = array( |
| 323 | 'method' => 'POST', |
| 324 | 'body' => $body, |
| 325 | 'timeout' => '5', |
| 326 | 'redirection' => '5', |
| 327 | 'httpversion' => '1.0', |
| 328 | 'blocking' => true, |
| 329 | 'headers' => $headers, |
| 330 | |
| 331 | ); |
| 332 | |
| 333 | $response = wp_remote_post( $url, $args ); |
| 334 | |
| 335 | if ( is_wp_error( $response ) ) { |
| 336 | $error_message = $response->get_error_message(); |
| 337 | echo 'Something went wrong: ' . esc_attr( $error_message ); |
| 338 | exit(); |
| 339 | } |
| 340 | |
| 341 | return wp_remote_retrieve_body( $response ); |
| 342 | } |
| 343 | |
| 344 | /** |
| 345 | * Function to call Firebase email password API |
| 346 | * |
| 347 | * @param string $email . |
| 348 | * @param string $password . |
| 349 | */ |
| 350 | public function mo_firebase_authenticate_call( $email, $password ) { |
| 351 | |
| 352 | $api_key = get_option( 'mo_firebase_auth_api_key' ); |
| 353 | |
| 354 | $url = 'https://identitytoolkit.googleapis.com/v1/accounts:signInWithPassword?key=' . $api_key; |
| 355 | |
| 356 | $params = array( |
| 357 | 'email' => $email, |
| 358 | 'password' => $password, |
| 359 | 'returnSecureToken' => true, |
| 360 | ); |
| 361 | |
| 362 | $body = wp_json_encode( $params ); |
| 363 | |
| 364 | $headers = array( |
| 365 | 'Content-Type' => 'application/json', |
| 366 | 'Content-Length' => strlen( $body ), |
| 367 | ); |
| 368 | |
| 369 | $response = $this->mo_fb_post_api( $url, $headers, $body ); |
| 370 | |
| 371 | return $response; |
| 372 | } |
| 373 | |
| 374 | } |
| 375 | |
| 376 | $mo_firebase_config_obj = new Mo_Firebase_Config(); |
| 377 |