firebase-authentication
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class-mo-firebase-config.php
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class-mo-firebase-config.php
269 lines
| 1 | <?php |
| 2 | |
| 3 | class Mo_Firebase_Config { |
| 4 | function __construct() { |
| 5 | add_action('init', array( $this, 'testconfig' )); |
| 6 | } |
| 7 | function testconfig() { |
| 8 | if( isset( $_REQUEST['mo_action'] ) && 'firebaselogin' === sanitize_text_field( wp_unslash( $_REQUEST['mo_action'] ) ) && isset( $_REQUEST['test'] ) && 'true' === wp_unslash( $_REQUEST['test'] ) && wp_verify_nonce( sanitize_text_field( wp_unslash( $_REQUEST['mo_firebase_auth_test_config_field'] ) ), 'mo_firebase_auth_test_config_form' ) ) { |
| 9 | |
| 10 | $project_id = get_option('mo_firebase_auth_project_id'); |
| 11 | $api_key = get_option('mo_firebase_auth_api_key'); |
| 12 | |
| 13 | $test_username = isset( $_POST['test_username'] ) ? sanitize_text_field( $_POST['test_username'] ) : ''; |
| 14 | $test_password = isset( $_POST['test_password'] ) ? sanitize_text_field( $_POST['test_password'] ) : ''; |
| 15 | |
| 16 | $response = $this->mo_firebase_authenticate_call($test_username, $test_password); |
| 17 | $response = json_decode($response, true); |
| 18 | |
| 19 | if(isset($response['error'])){ |
| 20 | $fb_error = $response['error']['message']; |
| 21 | if($fb_error == 'INVALID_PASSWORD'){ |
| 22 | $fb_error = 'The password is invalid or the user does not have a password.'; |
| 23 | }elseif ($fb_error == 'EMAIL_NOT_FOUND') { |
| 24 | $fb_error = 'There is no user record corresponding to this identifier. The user may have been deleted.'; |
| 25 | }elseif ($fb_error == 'INVALID_EMAIL'){ |
| 26 | $fb_error = 'The email address is badly formatted.'; |
| 27 | } |
| 28 | echo '<div style="font-family:Calibri;padding: 0 30%;">'; |
| 29 | echo '<h1 style="color:#d9534f;text-align:center;">test failed</h1>'; |
| 30 | echo '<h4 style="text-align:center;"><b>ERROR :</b>'.$fb_error.'</h4>'; |
| 31 | echo '</div>'; |
| 32 | 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>'; |
| 33 | exit(); |
| 34 | }else{ |
| 35 | $idToken = $response['idToken']; |
| 36 | $payload = $this->decode_jwt( $idToken ); |
| 37 | echo '<div style="font-family:Calibri;margin: auto;padding:5%;">'; |
| 38 | echo '<h1 style="color:#00C851;text-align:center;">Test Successful !</h1>'; |
| 39 | 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>'; |
| 40 | echo '<h3 style="text-align:center;">Test Configuration</h3><table style="margin: auto;"><tr><th>Attribute Name</th><th>Attribute Value</th></tr>'; |
| 41 | $this->testattrmappingconfig( "", $payload ); |
| 42 | echo '</table></div>'; |
| 43 | 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>'; |
| 44 | exit(); |
| 45 | } |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | function testattrmappingconfig( $nestedprefix, $payload ) { |
| 50 | foreach ( $payload as $key => $value ){ |
| 51 | if ( is_array( $value ) || is_object( $value ) ) { |
| 52 | if ( ! empty( $nestedprefix ) ) { |
| 53 | $nestedprefix .= "."; |
| 54 | } |
| 55 | $this->testattrmappingconfig( $nestedprefix.$key, $value ); |
| 56 | } else { |
| 57 | echo '<tr><td>'; |
| 58 | if ( ! empty( $nestedprefix ) ) |
| 59 | echo $nestedprefix."."; |
| 60 | echo $key.'</td><td>'.$value.'</td></tr>'; |
| 61 | } |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | function decode_jwt( $jwt_token ) { |
| 66 | $flag = 0; |
| 67 | $pieces = explode( ".", $jwt_token ); |
| 68 | $jwt_data = $pieces[0].".".$pieces[1]; |
| 69 | $jwt_signature = str_replace( ['-','_'], ['+','/'], $pieces[2] ); |
| 70 | $jwt_signature = base64_decode( $jwt_signature ); |
| 71 | $jwt_header = json_decode( base64_decode( str_replace( ['-','_'], ['+','/'], $pieces[0] ) ), true ); |
| 72 | |
| 73 | $alg = $jwt_header['alg']; |
| 74 | $kid = $jwt_header['kid']; |
| 75 | |
| 76 | if ( strpos( $alg, "RS" ) !== false ) { |
| 77 | $algorithm = "RSA"; |
| 78 | $sha = explode( "RS", $alg )[1]; |
| 79 | } |
| 80 | |
| 81 | $jwt_raw_certificate = $this->mo_firebase_auth_get_cert_from_kid($kid); |
| 82 | |
| 83 | $public_key = ""; |
| 84 | $parts = explode( "-----", $jwt_raw_certificate ); |
| 85 | |
| 86 | if ( preg_match( '/\r\n|\r|\n/', $parts[2] ) ) { |
| 87 | $public_key = $jwt_raw_certificate; |
| 88 | } else { |
| 89 | $encoding = "-----".$parts[1]."-----\n"; |
| 90 | $offset = 0; |
| 91 | while ( $segment = substr( $parts[2], $offset, 64 ) ) { |
| 92 | $encoding .= $segment."\n"; |
| 93 | $offset += 64; |
| 94 | } |
| 95 | $encoding .= "-----".$parts[3]."-----\n"; |
| 96 | $public_key = $encoding; |
| 97 | } |
| 98 | |
| 99 | switch ( $sha ) { |
| 100 | case '256': |
| 101 | $verified = openssl_verify( $jwt_data, $jwt_signature, $public_key, OPENSSL_ALGO_SHA256 ); |
| 102 | break; |
| 103 | case '384': |
| 104 | $verified = openssl_verify( $jwt_data, $jwt_signature, $public_key, OPENSSL_ALGO_SHA384 ); |
| 105 | break; |
| 106 | case '512': |
| 107 | $verified = openssl_verify( $jwt_data, $jwt_signature, $public_key, OPENSSL_ALGO_SHA512 ); |
| 108 | break; |
| 109 | default: |
| 110 | $verified = false; |
| 111 | break; |
| 112 | } |
| 113 | |
| 114 | if ( ! $verified ) { |
| 115 | echo "Invalid Token"; |
| 116 | exit(); |
| 117 | } |
| 118 | |
| 119 | $jwt_payload = json_decode( base64_decode( $pieces[1] ), true ); |
| 120 | return $jwt_payload; |
| 121 | |
| 122 | } |
| 123 | |
| 124 | function mo_firebase_auth_get_cert_from_kid( $kid ) { |
| 125 | $flag = $this->mo_firebase_auth_get_kid( $kid ); |
| 126 | if( $flag === 0 ) { |
| 127 | $firebaselogin = new mo_firebase_authentication_login(); |
| 128 | $firebaselogin->mo_firebase_auth_store_certificates(); |
| 129 | $flag = $this->mo_firebase_auth_get_kid( $kid ); |
| 130 | } |
| 131 | if ( $flag !== 0 ) { |
| 132 | if ( $flag === 1 ) { |
| 133 | $jwt_raw_certificate = get_option( 'mo_firebase_auth_cert1' ); |
| 134 | } else if( $flag === 2 ) { |
| 135 | $jwt_raw_certificate = get_option( 'mo_firebase_auth_cert2' ); |
| 136 | } else if ( $flag === 3 ) { |
| 137 | $jwt_raw_certificate = get_option( 'mo_firebase_auth_cert3' ); |
| 138 | } |
| 139 | } else { |
| 140 | echo "Please provide a valid certificate. Contact your administrator."; |
| 141 | exit; |
| 142 | } |
| 143 | return $jwt_raw_certificate; |
| 144 | } |
| 145 | |
| 146 | function mo_firebase_auth_get_kid($kid) { |
| 147 | $flag = 0; |
| 148 | $kid_stored = get_option( 'mo_firebase_auth_kid1' ); |
| 149 | if ( $kid_stored != $kid ) { |
| 150 | $flag = 2; |
| 151 | $kid_stored = get_option( 'mo_firebase_auth_kid2' ); |
| 152 | if ( $kid_stored != $kid ) { |
| 153 | $flag = 3; |
| 154 | $kid_stored = get_option( 'mo_firebase_auth_kid3' ); |
| 155 | if( $kid_stored != $kid ) { |
| 156 | $flag = 0; |
| 157 | } |
| 158 | } |
| 159 | } else { |
| 160 | $flag = 1; |
| 161 | } |
| 162 | return $flag; |
| 163 | } |
| 164 | |
| 165 | function mo_fb_login_user($fb_idToken) { |
| 166 | |
| 167 | $payload = $this->decode_jwt( $fb_idToken ); |
| 168 | |
| 169 | $user = $this->getUser( $payload ); |
| 170 | if( is_wp_error($user) ){ |
| 171 | return $user; |
| 172 | } |
| 173 | else { |
| 174 | $user_id = $user->ID; |
| 175 | wp_set_auth_cookie( $user_id, true ); |
| 176 | wp_redirect( home_url() ); |
| 177 | exit; |
| 178 | } |
| 179 | |
| 180 | } |
| 181 | |
| 182 | function getUser( $jwt_payload ) |
| 183 | { |
| 184 | if ( isset( $jwt_payload['email'] ) ){ |
| 185 | $email = $jwt_payload['email']; |
| 186 | $user = get_user_by( "email", $email ); |
| 187 | if ( ! $user ) { |
| 188 | $user = get_user_by( 'login', $email ); |
| 189 | if ( $user ) { |
| 190 | return $user; |
| 191 | } else { |
| 192 | $user_password = wp_generate_password( 10, false ); |
| 193 | |
| 194 | $userdata = array( |
| 195 | 'user_login' => $email, |
| 196 | 'user_pass' => $user_password, |
| 197 | 'user_email' => $email, |
| 198 | ); |
| 199 | |
| 200 | $user_id = wp_insert_user( $userdata ); |
| 201 | |
| 202 | if ( ! is_wp_error( $user_id ) ) |
| 203 | { |
| 204 | //Store disting |
| 205 | // shedName in User Meta |
| 206 | update_user_meta( $user_id, 'mo_firebase_user_dn', false ); |
| 207 | } |
| 208 | |
| 209 | $user = get_user_by( 'email', $email ); |
| 210 | return $user; |
| 211 | } |
| 212 | } else if( $user ) { |
| 213 | return $user; |
| 214 | } |
| 215 | } |
| 216 | } |
| 217 | |
| 218 | public function mo_fb_post_api($url, $headers, $body){ |
| 219 | |
| 220 | $args = array( |
| 221 | 'method' =>'POST', |
| 222 | 'body' => $body, |
| 223 | 'timeout' => '5', |
| 224 | 'redirection' => '5', |
| 225 | 'httpversion' => '1.0', |
| 226 | 'blocking' => true, |
| 227 | 'headers' => $headers, |
| 228 | |
| 229 | ); |
| 230 | |
| 231 | $response = wp_remote_post( $url, $args ); |
| 232 | |
| 233 | if ( is_wp_error( $response ) ) { |
| 234 | $error_message = $response->get_error_message(); |
| 235 | echo "Something went wrong: $error_message"; |
| 236 | exit(); |
| 237 | } |
| 238 | |
| 239 | return wp_remote_retrieve_body($response); |
| 240 | return $response; |
| 241 | } |
| 242 | |
| 243 | public function mo_firebase_authenticate_call($email, $password){ |
| 244 | |
| 245 | $api_key = get_option('mo_firebase_auth_api_key'); |
| 246 | |
| 247 | $url = "https://identitytoolkit.googleapis.com/v1/accounts:signInWithPassword?key=".$api_key; |
| 248 | |
| 249 | $params = array( |
| 250 | 'email' => $email, |
| 251 | 'password' => $password, |
| 252 | 'returnSecureToken' => true |
| 253 | ); |
| 254 | |
| 255 | $body = json_encode($params); |
| 256 | |
| 257 | $headers = array( |
| 258 | 'Content-Type' => 'application/json', |
| 259 | 'Content-Length' => strlen($body) |
| 260 | ); |
| 261 | |
| 262 | $response = $this->mo_fb_post_api($url, $headers, $body); |
| 263 | |
| 264 | return $response; |
| 265 | } |
| 266 | |
| 267 | } |
| 268 | |
| 269 | $mo_firebase_config_obj = new Mo_Firebase_Config(); |