keycloak-js
Version:
Keycloak Adapter
242 lines (196 loc) • 16 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define('keycloak-authorization', factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.KeycloakAuthorization = factory());
})(this, (function () { 'use strict';
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/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
var KeycloakAuthorization = function (keycloak, options) {
var _instance = this;
this.rpt = null;
var resolve = function () {};
var reject = function () {};
// detects if browser supports promises
if (typeof es6Promise_min.exports.Promise !== "undefined" && es6Promise_min.exports.Promise.toString().indexOf("[native code]") !== -1) {
this.ready = new es6Promise_min.exports.Promise(function (res, rej) {
resolve = res;
reject = rej;
});
}
this.init = function () {
var request = new XMLHttpRequest();
request.open('GET', keycloak.authServerUrl + '/realms/' + keycloak.realm + '/.well-known/uma2-configuration');
request.onreadystatechange = function () {
if (request.readyState == 4) {
if (request.status == 200) {
_instance.config = JSON.parse(request.responseText);
resolve();
} else {
console.error('Could not obtain configuration from server.');
reject();
}
}
};
request.send(null);
};
/**
* This method enables client applications to better integrate with resource servers protected by a Keycloak
* policy enforcer using UMA protocol.
*
* The authorization request must be provided with a ticket.
*/
this.authorize = function (authorizationRequest) {
this.then = function (onGrant, onDeny, onError) {
if (authorizationRequest && authorizationRequest.ticket) {
var request = new XMLHttpRequest();
request.open('POST', _instance.config.token_endpoint, true);
request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
request.setRequestHeader('Authorization', 'Bearer ' + keycloak.token);
request.onreadystatechange = function () {
if (request.readyState == 4) {
var status = request.status;
if (status >= 200 && status < 300) {
var rpt = JSON.parse(request.responseText).access_token;
_instance.rpt = rpt;
onGrant(rpt);
} else if (status == 403) {
if (onDeny) {
onDeny();
} else {
console.error('Authorization request was denied by the server.');
}
} else {
if (onError) {
onError();
} else {
console.error('Could not obtain authorization data from server.');
}
}
}
};
var params = "grant_type=urn:ietf:params:oauth:grant-type:uma-ticket&client_id=" + keycloak.clientId + "&ticket=" + authorizationRequest.ticket;
if (authorizationRequest.submitRequest != undefined) {
params += "&submit_request=" + authorizationRequest.submitRequest;
}
var metadata = authorizationRequest.metadata;
if (metadata) {
if (metadata.responseIncludeResourceName) {
params += "&response_include_resource_name=" + metadata.responseIncludeResourceName;
}
if (metadata.responsePermissionsLimit) {
params += "&response_permissions_limit=" + metadata.responsePermissionsLimit;
}
}
if (_instance.rpt && (authorizationRequest.incrementalAuthorization == undefined || authorizationRequest.incrementalAuthorization)) {
params += "&rpt=" + _instance.rpt;
}
request.send(params);
}
};
return this;
};
/**
* Obtains all entitlements from a Keycloak Server based on a given resourceServerId.
*/
this.entitlement = function (resourceServerId, authorizationRequest) {
this.then = function (onGrant, onDeny, onError) {
var request = new XMLHttpRequest();
request.open('POST', _instance.config.token_endpoint, true);
request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
request.setRequestHeader('Authorization', 'Bearer ' + keycloak.token);
request.onreadystatechange = function () {
if (request.readyState == 4) {
var status = request.status;
if (status >= 200 && status < 300) {
var rpt = JSON.parse(request.responseText).access_token;
_instance.rpt = rpt;
onGrant(rpt);
} else if (status == 403) {
if (onDeny) {
onDeny();
} else {
console.error('Authorization request was denied by the server.');
}
} else {
if (onError) {
onError();
} else {
console.error('Could not obtain authorization data from server.');
}
}
}
};
if (!authorizationRequest) {
authorizationRequest = {};
}
var params = "grant_type=urn:ietf:params:oauth:grant-type:uma-ticket&client_id=" + keycloak.clientId;
if (authorizationRequest.claimToken) {
params += "&claim_token=" + authorizationRequest.claimToken;
if (authorizationRequest.claimTokenFormat) {
params += "&claim_token_format=" + authorizationRequest.claimTokenFormat;
}
}
params += "&audience=" + resourceServerId;
var permissions = authorizationRequest.permissions;
if (!permissions) {
permissions = [];
}
for (var i = 0; i < permissions.length; i++) {
var resource = permissions[i];
var permission = resource.id;
if (resource.scopes && resource.scopes.length > 0) {
permission += "#";
for (j = 0; j < resource.scopes.length; j++) {
var scope = resource.scopes[j];
if (permission.indexOf('#') != permission.length - 1) {
permission += ",";
}
permission += scope;
}
}
params += "&permission=" + permission;
}
var metadata = authorizationRequest.metadata;
if (metadata) {
if (metadata.responseIncludeResourceName) {
params += "&response_include_resource_name=" + metadata.responseIncludeResourceName;
}
if (metadata.responsePermissionsLimit) {
params += "&response_permissions_limit=" + metadata.responsePermissionsLimit;
}
}
if (_instance.rpt) {
params += "&rpt=" + _instance.rpt;
}
request.send(params);
};
return this;
};
this.init(this);
return this;
};
return KeycloakAuthorization;
}));