feat: add logging

.gitignore

@@ -102,3 +102,6 @@ dist
 
 # TernJS port file
 .tern-port
+
+# SQLite local files
+*.sqlite

examples/express-react-relaying-party/README.md

@@ -18,7 +18,7 @@ This project showcases the relaying party.
   - run this command `yarn build && yarn link`
 
 - cd into this directory, your local directory that corresponds to [this](https://github.com/italia/spid-cie-oidc-nodejs/tree/main/examples/express-react-relaying-party)
-  - run this command `yarn link @spid-cie-oidc-nodejs/relying-party && yarn build && yarn start`
+  - run this command `yarn link spid-cie-oidc && yarn build && yarn start`
   - this will start the relying party server on [http://127.0.0.1:3000](http://127.0.0.1:3000), keep it running
 
 - do the onboarding process

examples/express-react-relaying-party/backend/src/index.ts

@@ -6,7 +6,7 @@ import {
   AgnosticRequest,
   AgnosticResponse,
   EndpointHandlers,
-} from "@spid-cie-oidc-nodejs/relying-party";
+} from "spid-cie-oidc";
 
 main();
 async function main() {
@@ -29,13 +29,19 @@ async function main() {
   } = await EndpointHandlers(configuration);
 
   function adaptRequest(req: Request): AgnosticRequest<any> {
-    return { query: req.query };
+    return {
+      url: `${req.protocol}://${req.get("host")}${req.originalUrl}`,
+      headers: req.headers as Record<string, string>,
+      query: req.query,
+    };
   }
 
   function adaptReponse(response: AgnosticResponse, res: Response) {
     res.status(response.status);
     if (response.headers) {
-      for (const [headerName, headerValue] of Object.entries(response.headers)) {
+      for (const [headerName, headerValue] of Object.entries(
+        response.headers
+      )) {
         res.set(headerName, headerValue);
       }
     }
@@ -48,7 +54,8 @@ async function main() {
   app.use(session({ secret: "spid-cie-oidc-nodejs" }));
 
   app.get("/oidc/rp/providers", async (req, res) => {
-    const response = await providerList();
+    const request = adaptRequest(req);
+    const response = await providerList(request);
     adaptReponse(response, res);
   });
 
@@ -76,15 +83,18 @@ async function main() {
 
   app.get("/oidc/rp/revocation", async (req, res) => {
     if (!req.session.user_info) throw new Error(); // TODO externalize session retreival
-    const response = await revocation(req.session.user_info as any);
+    const request = adaptRequest(req);
+    request.query.user_info = req.session.user_info;
+    const response = await revocation(request);
     req.session.destroy((error) => {
       if (error) throw new Error(); // TODO decide what to do with the error
     });
     adaptReponse(response, res);
   });
 
   app.get("/oidc/rp/.well-known/openid-federation", async (req, res) => {
-    const response = await entityConfiguration();
+    const request = adaptRequest(req);
+    const response = await entityConfiguration(request);
     adaptReponse(response, res);
   });
 
@@ -116,6 +126,5 @@ declare module "express-session" {
   }
 }
 
-// TODO logger as function default implementation write filesystem rotating log
 // TODO session (create, destroy, update) default implementation ecrypted cookie
 // TODO authorizationRequest access token storage default implementation in memory?

relying-party/README.md

@@ -10,12 +10,12 @@ More detailed descriptions are provided with [JSDoc](https://jsdoc.app/about-get
 
 ### Installation
 
-`npm install @spid-cie-oidc-nodejs/relying-party`
+`npm install spid-cie-oidc`
 
 ### Usage
 
 ```typescript
-import { ConfigurationFacade, EndpointHandlers } from '@spid-cie-oidc-nodejs/relying-party';
+import { ConfigurationFacade, EndpointHandlers } from 'spid-cie-oidc';
 
 const configuration = ConfigurationFacade({
   client_id: "http://127.0.0.1:3000",

relying-party/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@spid-cie-oidc-nodejs/relying-party",
+  "name": "spid-cie-oidc",
   "version": "0.0.0",
   "description": "openid federation relying party implementation",
   "main": "lib/index.js",
@@ -26,7 +26,9 @@
     "sqlite3": "^4.0.3",
     "typeorm": "^0.3.0",
     "undici": "^4.16.0",
-    "uuid": "^8.3.2"
+    "uuid": "^8.3.2",
+    "winston": "^3.6.0",
+    "winston-daily-rotate-file": "^4.6.1"
   },
   "devDependencies": {
     "@types/jest": "^27.4.1",

relying-party/src/AccessTokenRequest.ts

@@ -32,21 +32,45 @@ export async function AccessTokenRequest(
     client_assertion_type,
     client_assertion: await createJWS({ iss, sub, aud: [token_endpoint], iat, exp, jti }, jwk),
   };
-  // TODO when doing post request ensure timeout and ssl is respected
+  configuration.logger("log", {
+    url,
+    method: "POST",
+    headers: {
+      "content-type": "application/x-www-form-urlencoded",
+    },
+    body: new URLSearchParams(params).toString(),
+  });
+  // SHOULDDO when doing post request ensure timeout and ssl is respected
   const response = await request(url, {
     method: "POST",
     headers: {
       "content-type": "application/x-www-form-urlencoded",
     },
     body: new URLSearchParams(params).toString(),
   });
+  const bodyText = await response.body.text();
+  const bodyJSON = JSON.parse(bodyText);
   if (response.statusCode !== 200) {
-    throw new Error(); // TODO better error reporting
+    configuration.logger("error", {
+      statusCode: response.statusCode,
+      headers: response.headers,
+      body: bodyText,
+    });
+    throw new Error(`access token request failed ${await response.body.text()}`);
+  } else {
+    configuration.logger("log", {
+      statusCode: response.statusCode,
+      headers: response.headers,
+      body: bodyText,
+    });
   }
   // TODO validate reponse
-  return (await response.body.json()) as {
+  const data: {
     id_token: string;
     access_token: string;
     refresh_token?: string; // if offline_access scope is requested
-  };
+  } = bodyJSON;
+  const { id_token, access_token, refresh_token } = data;
+  configuration.auditLogger({ id_token, access_token, refresh_token });
+  return data;
 }

relying-party/src/AuthenticationRequest.ts

@@ -1,9 +1,16 @@
 import crypto from "crypto";
-import { createJWS, generateRandomString, getPrivateJWKforProvider, makeIat } from "./utils";
+import {
+  BadRequestError,
+  createJWS,
+  generateRandomString,
+  getPrivateJWKforProvider,
+  isValidURL,
+  makeIat,
+} from "./utils";
 import { Configuration } from "./Configuration";
 import { AuthenticationRequestEntity } from "./persistance/entity/AuthenticationRequestEntity";
 import { dataSource } from "./persistance/data-source";
-import { TrustChain } from "./TrustChain";
+import { CachedTrustChain } from "./TrustChain";
 
 export async function AuthenticationRequest(
   configuration: Configuration,
@@ -23,16 +30,37 @@ export async function AuthenticationRequest(
     profile?: string;
   }
 ) {
-  // TODO validate provider is a known provider
-  // TODO validate scope parameter (should be space sperated list of supported scopes, must include openid)
-  // TODO validate prompt inculdes supported values (space separated)
-  // TODO validate redirect_uri is well formed
-
-  const identityProviderTrustChain = await TrustChain(
-    configuration.client_id,
-    provider,
-    configuration.trust_anchors[0]
-  ); // TODO try with all anchors
+  if (!isValidURL(provider)) {
+    throw new BadRequestError(`provider is not a valid url ${provider}`);
+  }
+  if (!configuration.identity_providers.includes(provider)) {
+    throw new BadRequestError(`provider is not supported ${provider}`);
+  }
+  if (!isValidURL(redirect_uri)) {
+    throw new BadRequestError(`redirect_uri must be a valid url ${redirect_uri}`);
+  }
+  if (prompt !== "consent login") {
+    // SHOULDDO validate prompt inculdes supported values (space separated) and no duplicates
+    throw new BadRequestError(`prompt is not supported ${prompt}`);
+  }
+  if (scope !== "openid") {
+    // SHOULDDO validate scope parameter (should be space sperated list of supported scopes, must include openid, no duplicates)
+    throw new BadRequestError(`scope is not suppported ${scope}`);
+  }
+  const identityProviderTrustChain = (
+    await Promise.all(
+      configuration.trust_anchors.map(async (trust_anchor) => {
+        try {
+          return CachedTrustChain(configuration, configuration.client_id, provider, trust_anchor);
+        } catch (error) {
+          return null;
+        }
+      })
+    )
+  ).find((trust_chain) => trust_chain !== null);
+  if (!identityProviderTrustChain) {
+    throw new Error(`Unable to find trust chain for identity provider ${provider}`);
+  }
   const {
     authorization_endpoint,
     token_endpoint,

relying-party/src/Configuration.ts

@@ -1,7 +1,7 @@
 import * as jose from "jose";
-import { inferAlgForJWK, isValidEmail, isValidURL } from "./utils";
+import { inferAlgForJWK, isValidEmail, isValidURL, LogLevel } from "./utils";
 import { isEqual, difference, uniq } from "lodash";
-import { UserInfo } from "./UserInfo";
+import { UserInfo } from "./UserInfoRequest";
 
 /**
  * This configuration must be done on the relaying party side
@@ -64,6 +64,16 @@ export type Configuration = {
   federation_default_exp: number;
   /** this function will be used to derive a user unique identifier from claims */
   deriveUserIdentifier(user_info: UserInfo): string;
+  /**
+   * a function that will be called to log detailed events and exceptions
+   * @see {@link logRotatingFilesystem} for an example
+   */
+  logger(level: LogLevel, message: Error | string | object | unknown): void;
+  /**
+   * a function that will be called to log mandatory details that must be stored for 24 months (such as access_token, refresh_token, id_token)
+   * @see {@link auditLogRotatingFilesystem} for an example
+   */
+  auditLogger(message: object | unknown): void;
 };
 
 export async function validateConfiguration(configuration: Configuration) {
@@ -142,4 +152,10 @@ export async function validateConfiguration(configuration: Configuration) {
       );
     }
   }
+  if (typeof configuration.logger !== "function") {
+    throw new Error(`configuration: logger must be a function`);
+  }
+  if (typeof configuration.auditLogger !== "function") {
+    throw new Error(`configuration: auditLogger must be a function`);
+  }
 }

relying-party/src/ConfigurationFacade.ts

@@ -1,6 +1,9 @@
-import * as fs from "fs";
-import { generateJWKS } from "./utils";
 import { Configuration } from "./Configuration";
+import { auditLogRotatingFilesystem } from "./default-implementations/auditLogRotatingFilesystem";
+import { deriveFiscalNumberUserIdentifier } from "./default-implementations/deriveFiscalNumberUserIdentifier";
+import { loadOrCreateJWKSFromFilesystem } from "./default-implementations/loadOrCreateJWKSFromFilesystem";
+import { loadTrustMarksFromFilesystem } from "./default-implementations/loadTrustMarksFromFilesystem";
+import { logRotatingFilesystem } from "./default-implementations/logRotatingFilesystem";
 
 /**
  * This is a configuration facade to minimize setup effort.
@@ -19,8 +22,11 @@ export async function ConfigurationFacade({
   trust_anchors: Array<string>;
   identity_providers: Array<string>;
 }): Promise<Configuration> {
-  const { public_jwks, private_jwks } = await loadOrCreateJWKS();
-  const trust_marks = await loadTrustMarks();
+  const { public_jwks, private_jwks } = await loadOrCreateJWKSFromFilesystem();
+  const trust_marks = await loadTrustMarksFromFilesystem();
+  const logger = logRotatingFilesystem;
+  const auditLogger = auditLogRotatingFilesystem;
+  const deriveUserIdentifier = deriveFiscalNumberUserIdentifier;
   return {
     client_id,
     client_name,
@@ -77,45 +83,8 @@ export async function ConfigurationFacade({
     private_jwks,
     trust_marks,
     redirect_uris: [client_id + "callback"],
-    deriveUserIdentifier(claims) {
-      const userIdentifierFields = ["https://attributes.spid.gov.it/fiscalNumber", "fiscalNumber"];
-      if (!(typeof claims === "object" && claims !== null)) throw new Error();
-      const claimsAsRecord = claims as Record<string, unknown>;
-      for (const userIdentifierField of userIdentifierFields) {
-        const value = claimsAsRecord[userIdentifierField];
-        if (typeof value === "string") return value;
-      }
-      throw new Error();
-    },
+    deriveUserIdentifier,
+    logger,
+    auditLogger,
   };
 }
-
-async function loadOrCreateJWKS() {
-  const public_jwks_path = "./public.jwks.json";
-  const private_jwks_path = "./private.jwks.json";
-  if ((await fileExists(public_jwks_path)) && (await fileExists(private_jwks_path))) {
-    const public_jwks = JSON.parse(await fs.promises.readFile(public_jwks_path, "utf8"));
-    const private_jwks = JSON.parse(await fs.promises.readFile(private_jwks_path, "utf8"));
-    return { public_jwks, private_jwks };
-  } else {
-    const { public_jwks, private_jwks } = await generateJWKS();
-    await fs.promises.writeFile(public_jwks_path, JSON.stringify(public_jwks));
-    await fs.promises.writeFile(private_jwks_path, JSON.stringify(private_jwks));
-    return { public_jwks, private_jwks };
-  }
-}
-
-async function loadTrustMarks() {
-  const trust_marks_path = "./trust_marks.json";
-  if (await fileExists(trust_marks_path)) return JSON.parse(await fs.promises.readFile(trust_marks_path, "utf8"));
-  else return [];
-}
-
-async function fileExists(path: string) {
-  try {
-    await fs.promises.stat(path);
-    return true;
-  } catch (error) {
-    return false;
-  }
-}