samlify
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Node.js library for SAML SSO
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JavaScript
;
/**
* @file binding-simplesign.ts
* @author Orange
* @desc Binding-level API for SAML HTTP-POST-SimpleSign. Produces base64
* payloads alongside a detached signature over the canonical octet string.
*/
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}
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};
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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ownKeys = Object.getOwnPropertyNames || function (o) {
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};
})();
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g = Object.create((typeof Iterator === "function" ? Iterator : Object).prototype);
return g.next = verb(0), g["throw"] = verb(1), g["return"] = verb(2), typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
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var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var urn_1 = require("./urn");
var libsaml_1 = __importDefault(require("./libsaml"));
var utility_1 = __importStar(require("./utility"));
var binding = urn_1.wording.binding;
var urlParams = urn_1.wording.urlParams;
/**
* Build a `key=value` URL fragment prefixed with the correct separator.
*/
function pvPair(param, value, first) {
return (first === true ? '?' : '&') + param + '=' + value;
}
/**
* Compute a detached RSA signature over a SimpleSign canonical octet string.
*
* @param opts signing inputs
* @returns base64-encoded signature
*/
function buildSimpleSignature(opts) {
var type = opts.type, context = opts.context, entitySetting = opts.entitySetting;
var _a = opts.relayState, relayState = _a === void 0 ? '' : _a;
var queryParam = libsaml_1.default.getQueryParamByType(type);
if (relayState !== '') {
relayState = pvPair(urlParams.relayState, relayState);
}
var sigAlg = pvPair(urlParams.sigAlg, entitySetting.requestSignatureAlgorithm);
var octetString = context + relayState + sigAlg;
return libsaml_1.default.constructMessageSignature(queryParam + '=' + octetString, entitySetting.privateKey, entitySetting.privateKeyPass, undefined, entitySetting.requestSignatureAlgorithm).toString();
}
/**
* Generate a base64-encoded AuthnRequest together with a detached simple
* signature when the IdP advertises `WantAuthnRequestsSigned`.
*
* @param entity `{ idp, sp }` handles
* @param customTagReplacement optional custom template transformer
* @param relayState per-request RelayState; falls back to `entitySetting.relayState`
* @param forceAuthn per-request `ForceAuthn` flag (saml-core §3.4.1)
* @param assertionConsumerServiceIndex per-request ACS index (saml-core §3.4.1).
* Mutually exclusive with `AssertionConsumerServiceURL` / `ProtocolBinding`;
* when supplied, both of those attributes are dropped from the rendered XML.
*/
function base64LoginRequest(entity, customTagReplacement, relayState, forceAuthn, assertionConsumerServiceIndex) {
var _a, _b;
var metadata = { idp: entity.idp.entityMeta, sp: entity.sp.entityMeta };
var spSetting = entity.sp.entitySetting;
var id = '';
/* v8 ignore start */
if (!metadata.idp || !metadata.sp) {
throw new Error('ERR_GENERATE_POST_SIMPLESIGN_LOGIN_REQUEST_MISSING_METADATA');
}
/* v8 ignore stop */
var base = metadata.idp.getSingleSignOnService(binding.simpleSign);
var rawSamlRequest;
if (customTagReplacement) {
// saml-binding-simplesign §2 — the AuthnRequest template is informative,
// not normative. Honour the callback regardless of whether the caller
// supplied a custom template (closes #549).
var templateContext = (_b = (_a = spSetting.loginRequestTemplate) === null || _a === void 0 ? void 0 : _a.context) !== null && _b !== void 0 ? _b : libsaml_1.default.defaultLoginRequestTemplate.context;
var info = customTagReplacement(templateContext);
id = (0, utility_1.get)(info, 'id');
rawSamlRequest = (0, utility_1.get)(info, 'context');
}
else {
var nameIDFormat = spSetting.nameIDFormat;
var selectedNameIDFormat = Array.isArray(nameIDFormat) ? nameIDFormat[0] : nameIDFormat;
id = spSetting.generateID();
// saml-core §3.4.1 — `AssertionConsumerServiceIndex` is mutually
// exclusive with `AssertionConsumerServiceURL` / `ProtocolBinding`.
// When the caller supplies the index we set the URL+ProtocolBinding
// tags to undefined so `replaceTagsByValue` drops both attributes
// from the rendered XML (closes #437).
var useAcsIndex = assertionConsumerServiceIndex !== undefined;
var tags = {
ID: id,
Destination: base,
Issuer: metadata.sp.getEntityID(),
IssueInstant: new Date().toISOString(),
ProtocolBinding: useAcsIndex
? undefined
: 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST',
AssertionConsumerServiceURL: useAcsIndex
? undefined
: metadata.sp.getAssertionConsumerService(binding.simpleSign),
AssertionConsumerServiceIndex: assertionConsumerServiceIndex,
EntityID: metadata.sp.getEntityID(),
AllowCreate: spSetting.allowCreate,
NameIDFormat: selectedNameIDFormat,
// saml-core §3.4.1 — `replaceTagsByValue` drops the attribute when
// `forceAuthn` is undefined, matching `use="optional"`.
ForceAuthn: forceAuthn,
};
rawSamlRequest = libsaml_1.default.replaceTagsByValue(libsaml_1.default.defaultLoginRequestTemplate.context, tags);
}
var simpleSignatureContext = null;
if (metadata.idp.isWantAuthnRequestsSigned()) {
var simpleSignature = buildSimpleSignature({
type: urlParams.samlRequest,
context: rawSamlRequest,
entitySetting: spSetting,
relayState: relayState !== null && relayState !== void 0 ? relayState : spSetting.relayState,
});
simpleSignatureContext = {
signature: simpleSignature,
sigAlg: spSetting.requestSignatureAlgorithm,
};
}
return __assign({ id: id, context: utility_1.default.base64Encode(rawSamlRequest) }, (simpleSignatureContext !== null && simpleSignatureContext !== void 0 ? simpleSignatureContext : {}));
}
/**
* Generate a base64-encoded login response together with a detached simple
* signature. Login responses are always signed under this binding.
*
* @param requestInfo parsed request used to link `InResponseTo`
* @param entity `{ idp, sp }` handles
* @param user authenticated user
* @param relayState caller-supplied redirect URL
* @param customTagReplacement optional custom template transformer
*/
function base64LoginResponse() {
return __awaiter(this, arguments, void 0, function (requestInfo, entity, user, relayState, customTagReplacement) {
var idpSetting, spSetting, id, metadata, nameIDFormat, selectedNameIDFormat, base, rawSamlResponse, nowTime, fiveMinutesLaterTime, tvalue, templateContext, template, baseTemplate, privateKey, privateKeyPass, signatureAlgorithm, config, simpleSignature;
var _a, _b, _c, _d, _e, _f, _g, _h, _j;
if (requestInfo === void 0) { requestInfo = {}; }
if (user === void 0) { user = {}; }
return __generator(this, function (_k) {
idpSetting = entity.idp.entitySetting;
spSetting = entity.sp.entitySetting;
id = idpSetting.generateID();
metadata = {
idp: entity.idp.entityMeta,
sp: entity.sp.entityMeta,
};
nameIDFormat = idpSetting.nameIDFormat;
selectedNameIDFormat = Array.isArray(nameIDFormat) ? nameIDFormat[0] : nameIDFormat;
/* v8 ignore start */
if (!metadata.idp || !metadata.sp) {
throw new Error('ERR_GENERATE_POST_SIMPLESIGN_LOGIN_RESPONSE_MISSING_METADATA');
}
base = metadata.sp.getAssertionConsumerService(binding.simpleSign);
nowTime = new Date();
fiveMinutesLaterTime = new Date(nowTime.getTime() + 300000);
tvalue = {
ID: id,
AssertionID: idpSetting.generateID(),
Destination: base,
Audience: metadata.sp.getEntityID(),
EntityID: metadata.sp.getEntityID(),
SubjectRecipient: base,
Issuer: metadata.idp.getEntityID(),
IssueInstant: nowTime.toISOString(),
AssertionConsumerServiceURL: base,
StatusCode: urn_1.StatusCode.Success,
ConditionsNotBefore: nowTime.toISOString(),
ConditionsNotOnOrAfter: fiveMinutesLaterTime.toISOString(),
SubjectConfirmationDataNotOnOrAfter: fiveMinutesLaterTime.toISOString(),
NameIDFormat: selectedNameIDFormat,
NameID: user.email || '',
InResponseTo: (0, utility_1.get)(requestInfo, 'extract.request.id', ''),
AuthnStatement: '',
AttributeStatement: '',
};
if (customTagReplacement) {
templateContext = (_e = (_b = (_a = idpSetting.loginResponseTemplate) === null || _a === void 0 ? void 0 : _a.context) !== null && _b !== void 0 ? _b : (_d = (_c = idpSetting.tagPrefixedDefaults) === null || _c === void 0 ? void 0 : _c.loginResponseTemplate) === null || _d === void 0 ? void 0 : _d.context) !== null && _e !== void 0 ? _e : libsaml_1.default.defaultLoginResponseTemplate.context;
template = customTagReplacement(templateContext);
rawSamlResponse = (0, utility_1.get)(template, 'context');
}
else {
if (requestInfo !== null && ((_f = requestInfo.extract) === null || _f === void 0 ? void 0 : _f.request)) {
tvalue.InResponseTo = requestInfo.extract.request.id;
}
baseTemplate = (_j = (_h = (_g = idpSetting.tagPrefixedDefaults) === null || _g === void 0 ? void 0 : _g.loginResponseTemplate) === null || _h === void 0 ? void 0 : _h.context) !== null && _j !== void 0 ? _j : libsaml_1.default.defaultLoginResponseTemplate.context;
rawSamlResponse = libsaml_1.default.replaceTagsByValue(baseTemplate, tvalue);
}
privateKey = idpSetting.privateKey, privateKeyPass = idpSetting.privateKeyPass, signatureAlgorithm = idpSetting.requestSignatureAlgorithm;
config = {
privateKey: privateKey,
privateKeyPass: privateKeyPass,
signatureAlgorithm: signatureAlgorithm,
signingCert: metadata.idp.getX509Certificate('signing'),
isBase64Output: false,
};
if (metadata.sp.isWantAssertionsSigned()) {
rawSamlResponse = libsaml_1.default.constructSAMLSignature(__assign(__assign({}, config), { rawSamlMessage: rawSamlResponse, transformationAlgorithms: spSetting.transformationAlgorithms, referenceTagXPath: "/*[local-name(.)='Response']/*[local-name(.)='Assertion']", signatureConfig: {
prefix: 'ds',
location: { reference: "/*[local-name(.)='Response']/*[local-name(.)='Assertion']/*[local-name(.)='Issuer']", action: 'after' },
} }));
}
simpleSignature = buildSimpleSignature({
type: urlParams.samlResponse,
context: rawSamlResponse,
entitySetting: idpSetting,
relayState: relayState,
});
return [2 /*return*/, Promise.resolve({
id: id,
context: utility_1.default.base64Encode(rawSamlResponse),
signature: simpleSignature,
sigAlg: idpSetting.requestSignatureAlgorithm,
})];
});
});
}
/**
* Generate a base64-encoded LogoutRequest together with a detached simple
* signature when the receiving entity requires signed logout requests.
*
* @param user currently authenticated user
* @param entity `{ init, target }` handles
* @param relayState caller-supplied redirect URL
* @param customTagReplacement optional custom template transformer
*/
function base64LogoutRequest(user, entity, relayState, customTagReplacement) {
var _a, _b, _c, _d, _e, _f, _g, _h;
var metadata = { init: entity.init.entityMeta, target: entity.target.entityMeta };
var initSetting = entity.init.entitySetting;
var nameIDFormat = initSetting.nameIDFormat;
var selectedNameIDFormat = Array.isArray(nameIDFormat) ? nameIDFormat[0] : nameIDFormat;
var id = '';
/* v8 ignore start */
if (!metadata.init || !metadata.target) {
throw new Error('ERR_GENERATE_POST_SIMPLESIGN_LOGOUT_REQUEST_MISSING_METADATA');
}
/* v8 ignore stop */
var rawSamlRequest;
if (customTagReplacement) {
// saml-binding-simplesign §2 — honour the callback even when the
// caller did not override `logoutRequestTemplate` (closes #549).
// Prefer the user-supplied template, then the tag-prefixed default
// (closes #388), and finally the library default.
var templateContext = (_e = (_b = (_a = initSetting.logoutRequestTemplate) === null || _a === void 0 ? void 0 : _a.context) !== null && _b !== void 0 ? _b : (_d = (_c = initSetting.tagPrefixedDefaults) === null || _c === void 0 ? void 0 : _c.logoutRequestTemplate) === null || _d === void 0 ? void 0 : _d.context) !== null && _e !== void 0 ? _e : libsaml_1.default.defaultLogoutRequestTemplate.context;
var template = customTagReplacement(templateContext);
id = (0, utility_1.get)(template, 'id');
rawSamlRequest = (0, utility_1.get)(template, 'context');
}
else {
id = initSetting.generateID();
var tvalue = {
ID: id,
Destination: metadata.target.getSingleLogoutService(binding.simpleSign),
Issuer: metadata.init.getEntityID(),
IssueInstant: new Date().toISOString(),
EntityID: metadata.init.getEntityID(),
NameIDFormat: selectedNameIDFormat,
NameID: user.logoutNameID,
// saml-core §3.7.1 — SessionIndex is optional; replaceTagsByValue
// drops the element when undefined (closes #470).
SessionIndex: user.sessionIndex,
};
var baseTemplate = (_h = (_g = (_f = initSetting.tagPrefixedDefaults) === null || _f === void 0 ? void 0 : _f.logoutRequestTemplate) === null || _g === void 0 ? void 0 : _g.context) !== null && _h !== void 0 ? _h : libsaml_1.default.defaultLogoutRequestTemplate.context;
rawSamlRequest = libsaml_1.default.replaceTagsByValue(baseTemplate, tvalue);
}
var simpleSignatureContext = null;
if (entity.target.entitySetting.wantLogoutRequestSigned) {
var simpleSignature = buildSimpleSignature({
type: urlParams.logoutRequest,
context: rawSamlRequest,
entitySetting: initSetting,
relayState: relayState,
});
simpleSignatureContext = {
signature: simpleSignature,
sigAlg: initSetting.requestSignatureAlgorithm,
};
}
return __assign({ id: id, context: utility_1.default.base64Encode(rawSamlRequest) }, (simpleSignatureContext !== null && simpleSignatureContext !== void 0 ? simpleSignatureContext : {}));
}
/**
* Generate a base64-encoded LogoutResponse together with a detached simple
* signature when the receiving entity requires signed logout responses.
*
* @param requestInfo parsed request used to link `InResponseTo`
* @param entity `{ init, target }` handles
* @param relayState caller-supplied redirect URL
* @param customTagReplacement optional custom template transformer
*/
function base64LogoutResponse(requestInfo, entity, relayState, customTagReplacement) {
var _a, _b, _c, _d, _e, _f, _g, _h;
var metadata = { init: entity.init.entityMeta, target: entity.target.entityMeta };
var initSetting = entity.init.entitySetting;
var id = '';
/* v8 ignore start */
if (!metadata.init || !metadata.target) {
throw new Error('ERR_GENERATE_POST_SIMPLESIGN_LOGOUT_RESPONSE_MISSING_METADATA');
}
/* v8 ignore stop */
var rawSamlResponse;
if (customTagReplacement) {
// saml-binding-simplesign §2 — honour the callback even when the
// caller did not override `logoutResponseTemplate` (closes #549).
// Prefer the user-supplied template, then the tag-prefixed default
// (closes #388), and finally the library default.
var templateContext = (_e = (_b = (_a = initSetting.logoutResponseTemplate) === null || _a === void 0 ? void 0 : _a.context) !== null && _b !== void 0 ? _b : (_d = (_c = initSetting.tagPrefixedDefaults) === null || _c === void 0 ? void 0 : _c.logoutResponseTemplate) === null || _d === void 0 ? void 0 : _d.context) !== null && _e !== void 0 ? _e : libsaml_1.default.defaultLogoutResponseTemplate.context;
var template = customTagReplacement(templateContext);
id = template.id;
rawSamlResponse = template.context;
}
else {
id = initSetting.generateID();
var tvalue = {
ID: id,
Destination: metadata.target.getSingleLogoutService(binding.simpleSign),
EntityID: metadata.init.getEntityID(),
Issuer: metadata.init.getEntityID(),
IssueInstant: new Date().toISOString(),
StatusCode: urn_1.StatusCode.Success,
InResponseTo: (0, utility_1.get)(requestInfo, 'extract.request.id'),
};
var baseTemplate = (_h = (_g = (_f = initSetting.tagPrefixedDefaults) === null || _f === void 0 ? void 0 : _f.logoutResponseTemplate) === null || _g === void 0 ? void 0 : _g.context) !== null && _h !== void 0 ? _h : libsaml_1.default.defaultLogoutResponseTemplate.context;
rawSamlResponse = libsaml_1.default.replaceTagsByValue(baseTemplate, tvalue);
}
var simpleSignatureContext = null;
if (entity.target.entitySetting.wantLogoutResponseSigned) {
var simpleSignature = buildSimpleSignature({
type: urlParams.logoutResponse,
context: rawSamlResponse,
entitySetting: initSetting,
relayState: relayState,
});
simpleSignatureContext = {
signature: simpleSignature,
sigAlg: initSetting.requestSignatureAlgorithm,
};
}
return __assign({ id: id, context: utility_1.default.base64Encode(rawSamlResponse) }, (simpleSignatureContext !== null && simpleSignatureContext !== void 0 ? simpleSignatureContext : {}));
}
var simpleSignBinding = {
base64LoginRequest: base64LoginRequest,
base64LoginResponse: base64LoginResponse,
base64LogoutRequest: base64LogoutRequest,
base64LogoutResponse: base64LogoutResponse,
};
exports.default = simpleSignBinding;
//# sourceMappingURL=binding-simplesign.js.map