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server.js
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server.js
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const { Assertion } = require("./assertion");
const bodyParser = require("body-parser");
const ConfigToken = require("./config_token");
const cookieParser = require("cookie-parser");
const express = require("express");
const fs = require("fs");
const jwt = require("jsonwebtoken");
const _ = require("lodash");
const https = require("https");
const { HeaderInjector } = require("./header");
const { PluginVerifyResponse } = require("./plugin");
const { ExternalAuthServer } = require("./");
const promBundle = require("express-prom-bundle");
const queryString = require("query-string");
const URI = require("uri-js");
const YAML = require("yaml");
// auth plugins
const { OauthPlugin, OpenIdConnectPlugin } = require("./plugin/oauth");
const { RequestHeaderPlugin } = require("./plugin/request_header");
const { RequestJsPlugin } = require("./plugin/request_js");
const { RequestParamPlugin } = require("./plugin/request_param");
const { HtPasswdPlugin } = require("./plugin/htpasswd");
const { LdapPlugin } = require("./plugin/ldap");
const { JwtPlugin } = require("./plugin/jwt");
const { ForwardPlugin } = require("./plugin/forward");
const { FirebaseJwtPlugin } = require("./plugin/firebase");
const { NoopPlugin } = require("./plugin/noop");
// create app instance
const externalAuthServer = new ExternalAuthServer();
const app = express();
externalAuthServer.WebServer = app;
// config token store
const { ConfigTokenStoreManager } = require("./config_token_store");
const configTokenStoreManager = new ConfigTokenStoreManager(externalAuthServer);
/**
* register middleware
*/
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser(externalAuthServer.secrets.cookie_sign_secret));
if (!externalAuthServer.utils.toBoolean(process.env.EAS_DISABLE_METRICS)) {
app.use(
promBundle({
includeMethod: true,
includePath: true,
promClient: {
collectDefaultMetrics: {
timeout: 2000,
},
},
})
);
}
let revokedJtis = process.env["EAS_REVOKED_JTIS"];
if (revokedJtis) {
revokedJtis = YAML.parse(revokedJtis);
} else {
revokedJtis = [];
}
if (!Array.isArray(revokedJtis)) {
externalAuthServer.logger.warn("EAS_REVOKED_JTIS must be an array");
revokedJtis = [];
}
externalAuthServer.logger.info("revoked JTIs: %j", revokedJtis);
/**
* TODO: call initialize only if method exists and make sure to call on all plugins
*/
OauthPlugin.initialize(externalAuthServer);
OpenIdConnectPlugin.initialize(externalAuthServer);
RequestParamPlugin.initialize(externalAuthServer);
RequestHeaderPlugin.initialize(externalAuthServer);
HtPasswdPlugin.initialize(externalAuthServer);
LdapPlugin.initialize(externalAuthServer);
JwtPlugin.initialize(externalAuthServer);
FirebaseJwtPlugin.initialize(externalAuthServer);
ForwardPlugin.initialize(externalAuthServer);
NoopPlugin.initialize(externalAuthServer);
app.get("/ping", (req, res) => {
res.statusCode = 200;
res.end("pong");
});
verifyHandler = async (req, res, options = {}) => {
try {
return await _verifyHandler(req, res, options);
} catch (error) {
externalAuthServer.logger.error(error);
}
};
_verifyHandler = async (req, res, options = {}) => {
externalAuthServer.logger.silly("verify request details: %j", {
url: req.url,
params: req.params,
query: req.query,
http_method: req.method,
http_version: req.httpVersion,
headers: req.headers,
body: req.body,
});
externalAuthServer.logger.info("starting verify pipeline");
let easVerifyParams;
if (
req.headers["x-eas-verify-params"] &&
options.trust_verify_params_header
) {
easVerifyParams = JSON.parse(req.headers["x-eas-verify-params"]);
} else if (req.params["verify_params"]) {
easVerifyParams = JSON.parse(req.params["verify_params"]);
} else {
easVerifyParams = req.query;
}
externalAuthServer.logger.silly("verify params: %j", easVerifyParams);
/**
* pull the config token
*/
let configToken;
let isServerSideConfigToken = false;
let serverSideConfigTokenId = null;
let serverSideConfigTokenStoreId = null;
const parentRequestInfo =
externalAuthServer.utils.get_parent_request_info(req);
try {
if (easVerifyParams.config_token) {
configToken = externalAuthServer.utils.decrypt(
externalAuthServer.secrets.config_token_encrypt_secret,
easVerifyParams.config_token
);
configToken = jwt.verify(
configToken,
externalAuthServer.secrets.config_token_sign_secret
);
if (
configToken.eas.config_token_id &&
configToken.eas.config_token_store_id
) {
isServerSideConfigToken = true;
serverSideConfigTokenId = configToken.eas.config_token_id;
serverSideConfigTokenStoreId = configToken.eas.config_token_store_id;
}
} else if (
(easVerifyParams.config_token_id ||
(easVerifyParams.config_token_id_query &&
easVerifyParams.config_token_id_query_engine)) &&
(easVerifyParams.config_token_store_id ||
(easVerifyParams.config_token_store_id_query &&
easVerifyParams.config_token_store_id_query_engine))
) {
let queryValue;
isServerSideConfigToken = true;
// prep queryable data block
let queryData = { req: {} };
if (
(easVerifyParams.config_token_id_query &&
easVerifyParams.config_token_id_query_engine) ||
(easVerifyParams.config_token_store_id_query &&
easVerifyParams.config_token_store_id_query_engine)
) {
queryData.req.headers = req.headers;
queryData.req.cookies = req.cookies;
queryData.req.signedCookies = req.signedCookies;
queryData.req.query = req.query;
queryData.req.method = req.method;
queryData.req.httpVersionMajor = req.httpVersionMajor;
queryData.req.httpVersionMinor = req.httpVersionMinor;
queryData.req.httpVersion = req.httpVersion;
queryData.parentRequestInfo = parentRequestInfo;
queryData.parentReqInfo = parentRequestInfo;
}
// determine token_id
if (easVerifyParams.config_token_id) {
serverSideConfigTokenId = easVerifyParams.config_token_id;
} else if (
easVerifyParams.config_token_id_query &&
easVerifyParams.config_token_id_query_engine
) {
externalAuthServer.logger.debug(
"server-side config_token_id query info - query: %s, query_engine: %s, data: %j",
easVerifyParams.config_token_id_query,
easVerifyParams.config_token_id_query_engine,
queryData
);
queryValue = await externalAuthServer.utils.json_query(
easVerifyParams.config_token_id_query_engine,
easVerifyParams.config_token_id_query,
queryData
);
if (Array.isArray(queryValue) && queryValue.length == 1) {
queryValue = queryValue[0];
}
serverSideConfigTokenId = queryValue;
}
// determine config_token_store_id
if (easVerifyParams.config_token_store_id) {
serverSideConfigTokenStoreId = easVerifyParams.config_token_store_id;
} else if (
easVerifyParams.config_token_store_id_query &&
easVerifyParams.config_token_store_id_query_engine
) {
externalAuthServer.logger.debug(
"server-side config_token_store_id query info - query: %s, query_engine: %s, data: %j",
easVerifyParams.config_token_store_id_query,
easVerifyParams.config_token_store_id_query_engine,
queryData
);
queryValue = await externalAuthServer.utils.json_query(
easVerifyParams.config_token_store_id_query_engine,
easVerifyParams.config_token_store_id_query,
queryData
);
if (Array.isArray(queryValue) && queryValue.length == 1) {
queryValue = queryValue[0];
}
serverSideConfigTokenStoreId = queryValue;
}
} else {
throw new Error("missing valid config_token configuration");
}
// server-side token
if (isServerSideConfigToken) {
externalAuthServer.logger.info(
"sever-side token: store=%s, id=%s",
serverSideConfigTokenStoreId,
serverSideConfigTokenId
);
configToken = await configTokenStoreManager.getToken(
serverSideConfigTokenId,
serverSideConfigTokenStoreId
);
externalAuthServer.logger.debug(
"server-side config token: %s",
configToken
);
let configTokenLoaded = false;
// allow unsigned tokens
if (process.env.EAS_ALLOW_PLAIN_SERVER_SIDE_TOKENS) {
if (
externalAuthServer.utils.is_json_like(configToken) ||
externalAuthServer.utils.is_yaml_like(configToken)
) {
try {
configToken = YAML.parse(configToken);
configTokenLoaded = true;
} catch (err) {}
}
}
if (!configTokenLoaded) {
// server-side tokens can be stored encrypted or not
if (!externalAuthServer.utils.is_jwt(configToken)) {
configToken = externalAuthServer.utils.decrypt(
externalAuthServer.secrets.config_token_encrypt_secret,
configToken
);
}
configToken = jwt.verify(
configToken,
externalAuthServer.secrets.config_token_sign_secret
);
}
}
configToken = externalAuthServer.setConfigTokenDefaults(configToken);
configToken = new ConfigToken(configToken);
externalAuthServer.logger.debug("config token: %j", configToken);
if (!configToken.eas || !configToken.eas.plugins) {
throw new Error("missing plugins");
}
if (configToken.jti && revokedJtis.includes(configToken.jti)) {
throw new Error("revoked jti: " + configToken.jti);
}
const fallbackPlugin = easVerifyParams.fallback_plugin
? easVerifyParams.fallback_plugin
: null;
let fallbackPluginResponse;
let lastPluginResponse;
return new Promise((resolve) => {
async function processPipeline() {
for (let i = 0; i < configToken.eas.plugins.length; i++) {
const pluginConfig = configToken.eas.plugins[i];
pluginConfig.pcb = pluginConfig.pcb || {};
const pluginResponse = new PluginVerifyResponse();
let plugin;
switch (pluginConfig.type) {
case "oidc":
plugin = new OpenIdConnectPlugin(
externalAuthServer,
pluginConfig
);
break;
case "oauth2":
plugin = new OauthPlugin(externalAuthServer, pluginConfig);
break;
case "request_header":
plugin = new RequestHeaderPlugin(
externalAuthServer,
pluginConfig
);
break;
case "request_js":
if (process.env.EAS_ALLOW_EVAL) {
plugin = new RequestJsPlugin(externalAuthServer, pluginConfig);
} else {
continue;
}
break;
case "request_param":
plugin = new RequestParamPlugin(externalAuthServer, pluginConfig);
break;
case "htpasswd":
plugin = new HtPasswdPlugin(externalAuthServer, pluginConfig);
break;
case "ldap":
plugin = new LdapPlugin(externalAuthServer, pluginConfig);
break;
case "jwt":
plugin = new JwtPlugin(externalAuthServer, pluginConfig);
break;
case "forward":
plugin = new ForwardPlugin(externalAuthServer, pluginConfig);
break;
case "firebase_jwt":
plugin = new FirebaseJwtPlugin(externalAuthServer, pluginConfig);
break;
case "noop":
plugin = new NoopPlugin(externalAuthServer, pluginConfig);
break;
default:
continue;
}
pluginResponse.setPlugin(plugin);
externalAuthServer.logger.info(
"starting verify for plugin: %s",
pluginConfig.type
);
try {
/**
* check if we should skip this plugin
*/
if (pluginConfig.pcb.skip) {
const data = {
req: {},
res: {},
parentReqInfo: parentRequestInfo,
configToken,
};
data.req.headers = JSON.parse(JSON.stringify(req.headers));
data.req.cookies = JSON.parse(JSON.stringify(req.cookies));
let skip = await Assertion.assertSet(data, pluginConfig.pcb.skip);
if (skip) {
externalAuthServer.logger.info(
"skipping plugin due to pcb assertions: %s",
pluginConfig.type
);
continue;
}
}
await plugin.verify(configToken, req, pluginResponse);
} catch (e) {
externalAuthServer.logger.error(e);
if (configToken.eas.plugins.length == i + 1) {
if (fallbackPluginResponse) {
resolve(fallbackPluginResponse);
} else {
resolve(lastPluginResponse);
}
}
continue;
}
lastPluginResponse = pluginResponse;
externalAuthServer.logger.debug("plugin response %j", pluginResponse);
if (fallbackPlugin !== null) {
if (i == fallbackPlugin) {
fallbackPluginResponse = pluginResponse;
}
} else if (i + 1 == configToken.eas.plugins.length) {
fallbackPluginResponse = pluginResponse;
}
if (
pluginResponse.statusCode >= 200 &&
pluginResponse.statusCode < 300
) {
resolve(pluginResponse);
break;
}
/**
* check to see if we should stop pipeline immediately
*/
if (pluginConfig.pcb.stop) {
const data = {
req: {},
res: {},
parentReqInfo: parentRequestInfo,
configToken,
};
data.req.headers = JSON.parse(JSON.stringify(req.headers));
data.req.cookies = JSON.parse(JSON.stringify(req.cookies));
data.res.headers = JSON.parse(
JSON.stringify(
externalAuthServer.utils.lower_case_keys(pluginResponse.headers)
)
);
data.res.statusCode = JSON.parse(
JSON.stringify(pluginResponse.statusCode)
);
let stop = await Assertion.assertSet(data, pluginConfig.pcb.stop);
if (stop === true) {
externalAuthServer.logger.info(
"stopping pipeline due to pcb assertions: %s",
pluginConfig.type
);
resolve(pluginResponse);
break;
}
}
if (configToken.eas.plugins.length == i + 1) {
if (!fallbackPluginResponse) {
fallbackPluginResponse = pluginResponse;
}
resolve(fallbackPluginResponse);
break;
}
}
// bad configuration (ie: no valid plugins defined)
resolve();
}
processPipeline();
}).then(async (pluginResponse) => {
if (!pluginResponse) {
pluginResponse = new PluginVerifyResponse();
pluginResponse.plugin = {};
pluginResponse.plugin.config = {};
pluginResponse.statusCode = 503;
}
externalAuthServer.logger.info(
"end verify pipeline with status: %d",
pluginResponse.statusCode
);
const pluginConfig = pluginResponse.plugin.config;
const injectData = pluginResponse.authenticationData;
injectData.plugin_config = pluginConfig;
injectData.config_token = configToken;
injectData.req = {};
injectData.req.headers = req.headers;
injectData.req.cookies = req.cookies;
injectData.req.signedCookies = req.signedCookies;
injectData.req.query = req.query;
injectData.req.method = req.method;
injectData.req.httpVersionMajor = req.httpVersionMajor;
injectData.req.httpVersionMinor = req.httpVersionMinor;
injectData.req.httpVersion = req.httpVersion;
injectData.parentRequestInfo = parentRequestInfo;
injectData.parentReqInfo = parentRequestInfo;
if (pluginResponse.statusCode >= 200 && pluginResponse.statusCode < 300) {
// set config_token headers
if (configToken.eas.custom_service_headers) {
const headersInjector = new HeaderInjector(
configToken.eas.custom_service_headers,
injectData
);
await headersInjector.injectHeaders(pluginResponse);
}
// set plugin headers
if (pluginConfig.custom_service_headers) {
const headersInjector = new HeaderInjector(
pluginConfig.custom_service_headers,
injectData
);
await headersInjector.injectHeaders(pluginResponse);
}
} else {
// set config_token headers
if (configToken.eas.custom_error_headers) {
const headersInjector = new HeaderInjector(
configToken.eas.custom_error_headers,
injectData
);
await headersInjector.injectHeaders(pluginResponse);
}
// set plugin headers
if (pluginConfig.custom_error_headers) {
const headersInjector = new HeaderInjector(
pluginConfig.custom_error_headers,
injectData
);
await headersInjector.injectHeaders(pluginResponse);
}
}
if (options.return_response) {
return pluginResponse;
} else {
ExternalAuthServer.setResponse(res, pluginResponse);
}
});
} catch (e) {
externalAuthServer.logger.error(e);
if (options.return_response) {
throw e;
} else {
res.statusCode = 503;
res.end();
return;
}
}
};
/**
* Verify the request with the given ConfigToken
*
*/
app.all("/verify", verifyHandler);
// deprecated endpoint
app.all("/ambassador/verify-params-url/:verify_params/*", async (req, res) => {
externalAuthServer.logger.warn(
"/ambassador endpoints have been deprecated in favor of /envoy variants"
);
req.headers["x-forwarded-uri"] =
externalAuthServer.utils.get_envoy_forwarded_uri(req);
req.headers["x-forwarded-method"] = req.method;
verifyHandler(req, res);
});
app.all("/envoy/verify-params-url/:verify_params/*", async (req, res) => {
req.headers["x-forwarded-uri"] =
externalAuthServer.utils.get_envoy_forwarded_uri(req);
req.headers["x-forwarded-method"] = req.method;
verifyHandler(req, res);
});
app.all("/envoy/verify-params-header(/*)?", async (req, res) => {
req.headers["x-forwarded-uri"] =
externalAuthServer.utils.get_envoy_forwarded_uri(req, 3);
req.headers["x-forwarded-method"] = req.method;
verifyHandler(req, res, { trust_verify_params_header: true });
});
// ingress-nginx
app.get("/nginx/auth-signin", (req, res) => {
externalAuthServer.logger.silly("%j", {
headers: req.headers,
body: req.body,
});
try {
const parsedRequestURI = URI.parse(req.url);
externalAuthServer.logger.verbose(
"parsed request uri: %j",
parsedRequestURI
);
let parsedRequestQuery = queryString.parse(parsedRequestURI.query);
/**
* Hack to workaround nginx configuration limitations
*/
if (Object.keys(parsedRequestQuery).length > 1) {
const rd_index = parsedRequestURI.query.indexOf("rd=");
const query_before_rd = parsedRequestURI.query.substring(0, rd_index);
const query_after_rd = parsedRequestURI.query.substring(rd_index + 3);
parsedRequestQuery = queryString.parse(
query_before_rd + "rd=" + encodeURIComponent(query_after_rd)
);
}
externalAuthServer.logger.verbose(
"parsed request query: %j",
parsedRequestQuery
);
let redirect_uri;
if (!redirect_uri && parsedRequestQuery.rd) {
redirect_uri = parsedRequestQuery.rd;
}
if (!redirect_uri) {
throw new Error("missing redirect_uri");
}
externalAuthServer.logger.info("redirecting browser to: %j", redirect_uri);
res.statusCode = 302;
res.setHeader("Location", redirect_uri);
res.end();
return;
} catch (e) {
server.logger.error(e);
res.statusCode = 503;
res.end();
}
});
const port = process.env.EAS_PORT || 8080;
externalAuthServer.logger.info("starting http(s) server on port %s", port);
if (process.env.EAS_SSL_CERT) {
https
.createServer(
{
key: fs.readFileSync(process.env.EAS_SSL_KEY, "utf8"),
cert: fs.readFileSync(process.env.EAS_SSL_CERT, "utf8"),
ca: process.env.EAS_SSL_CA
? fs.readFileSync(process.env.EAS_SSL_CA, "utf8")
: undefined,
},
app
)
.listen(port);
} else {
app.listen(port);
}
// grpc
/**
* ::: ipv6
* 0.0.0.0 ipv4
*/
const grpcAddress = process.env.EAS_GRPC_ADDRESS || "0.0.0.0";
const grpcPort = process.env.EAS_GRPC_PORT || 50051;
/**
* grpc (c-based implementation)
* @grpc/grpc-js (pure js implementation)
*/
const grpcImplementation =
process.env.EAS_GRPC_IMPLEMENTATION || "@grpc/grpc-js";
const grpc = require(grpcImplementation);
const protoLoader = require("@grpc/proto-loader");
const sign = require("cookie-signature").sign;
const cookie = require("cookie");
const merge = require("utils-merge");
const PROTO_PATH =
__dirname + "/../grpc/envoy/service/auth/v3/external_auth.proto";
const googleProtos = require("google-proto-files");
const packageDefinition = protoLoader.loadSync(PROTO_PATH, {
keepCase: true,
longs: String,
enums: String,
defaults: true,
oneofs: true,
includeDirs: [__dirname + "/../grpc", googleProtos.getProtoPath() + "/../"],
});
const protoDescriptor = grpc.loadPackageDefinition(packageDefinition);
const grpcServer = new grpc.Server();
grpcServer.addService(
protoDescriptor.envoy.service.auth.v3.Authorization.service,
{
async Check(call, callback) {
let grpcRes;
try {
let cleansedCall = JSON.parse(externalAuthServer.utils.stringify(call));
externalAuthServer.logger.debug(
"new grpc request - Check call: %j",
cleansedCall
);
/**
* create mock req object
*/
const req = {};
req.url = ""; // URL used to invoke eas itself, empty when using grpc
req.params = {}; // URL params when invoking eas itself, empty when using grpc
req.query = {}; // URL query params when invoking eas itself, empty when using grpc
req.http_method = ""; // method used to invoke eas itself, empty when using grpc
req.http_version = ""; // version used to invoke eas itself, empty when using grpc
req.headers = call.request.attributes.request.http.headers; // headers from parent
req.body = call.request.attributes.request.http.body; // body from parent
//req.query.redirect_http_code? really only exists to workaround nginx shortcomings, likely not needed here
// c-based grpc metadata is present at this attribute
let metadata = _.get(call, "metadata._internal_repr");
// c-based grpc not in use
if (!metadata) {
// get metadata object and convert to basic json object
metadata = _.get(call, "metadata", {});
metadata = JSON.parse(JSON.stringify(metadata));
}
let filter_metadata = _.get(
call,
"request.attributes.metadata_context.filter_metadata.eas.fields.eas.structValue.fields"
);
// function to prroperly retrieve value from filter_metadata
const getFilterMetadataValue = function (filter_metadata, key) {
const field = _.get(filter_metadata, key);
if (field) {
return field[field["kind"]];
}
};
// for explanation on order of preference of the data below see the following
// https://github.com/travisghansen/external-auth-server/pull/126#issuecomment-980094773
let verify_params;
// header
// not safe
// filter_metadata
if (!verify_params) {
verify_params = getFilterMetadataValue(
filter_metadata,
"x-eas-verify-params"
);
}
// initial_metadata
if (!verify_params) {
verify_params = _.last(_.get(metadata, "x-eas-verify-params"));
}
// context
if (!verify_params) {
verify_params =
call.request.attributes.context_extensions["x-eas-verify-params"];
}
req.headers["x-eas-verify-params"] = verify_params;
let scheme;
let host = call.request.attributes.request.http.host;
let port;
let destination_port = "";
// header
// this head can be trusted as being set by envoy
if (!scheme) {
scheme = _.get(req.headers, "x-forwarded-proto");
}
// filter_metadata
if (!scheme) {
scheme = getFilterMetadataValue(filter_metadata, "x-forwarded-proto");
}
// initial_metadata
if (!scheme) {
scheme = _.last(_.get(metadata, "x-forwarded-proto"));
}
// context
if (!scheme) {
scheme = _.get(
call.request.attributes.context_extensions,
"x-forwarded-proto"
);
}
// fallback to scheme of the envoy request directly
if (!scheme) {
switch (call.request.attributes.request.http.scheme) {
case "http":
case "https":
scheme = call.request.attributes.request.http.scheme;
break;
}
}
if (!scheme) {
throw new Error("unknown request scheme");
}
if (host.includes(":")) {
host = host.split(":", 1)[0];
}
// header
// by default this CANNOT be trusted
//if (!port) {
// port = _.get(req.headers, "x-forwarded-port");
//}
// filter_metadata
if (!port) {
port = getFilterMetadataValue(filter_metadata, "x-forwarded-port");
}
// initial_metadata
if (!port) {
port = _.last(_.get(metadata, "x-forwarded-port"));
}
// context
if (!port) {
port = _.get(
call.request.attributes.context_extensions,
"x-forwarded-port"
);
}
// request host
if (!port) {
if (call.request.attributes.request.http.host.includes(":")) {
port = call.request.attributes.request.http.host.split(":", 2)[1];
}
}
// fallback to port of the envoy request directly
if (!port) {
port =
call.request.attributes.destination.address.socket_address
.port_value;
}
if (!port) {
throw new Error("unknown request port");
}
// only set port if non-standard to the scheme
switch (scheme) {
case "http":
if (port !== 80) {
destination_port = `:${port}`;
}
break;
case "https":
if (port !== 443) {
destination_port = `:${port}`;
}
break;
default:
throw new Error("unknown request scheme");
break;
}
req.headers[
"x-eas-request-uri"
] = `${scheme}://${host}${destination_port}${call.request.attributes.request.http.path}`;
req.headers["x-forwarded-method"] =
call.request.attributes.request.http.method;
// parse cookies into req object
cookieParser(externalAuthServer.secrets.cookie_sign_secret)(
req,
{},
() => {}
);
//console.log(req);
/**
* tell verify function to return to us directly the pluginResponse
*/
let pluginResponse = await verifyHandler(
req,
{},
{ return_response: true, trust_verify_params_header: true }
);
//console.log("pluginResponse", pluginResponse);
let grpcHeaders = [];
// deal with cookies
let setCookieHeaders = [];
const clearCookie = function clearCookie(name, options) {
var opts = merge({ expires: new Date(1), path: "/" }, options);
return setCookie(name, "", opts);
};
const setCookie = function (name, value, options) {
var opts = merge({}, options);
var secret = externalAuthServer.secrets.cookie_sign_secret;
var signed = opts.signed;
if (signed && !secret) {
throw new Error(
'cookieParser("secret") required for signed cookies'
);
}
var val =
typeof value === "object"
? "j:" + JSON.stringify(value)
: String(value);
if (signed) {
val = "s:" + sign(val, secret);
}
if ("maxAge" in opts) {
opts.expires = new Date(Date.now() + opts.maxAge);
opts.maxAge /= 1000;
}
if (opts.path == null) {
opts.path = "/";
}
return cookie.serialize(name, String(val), opts);
};
pluginResponse.cookies.forEach((cookie) => {
setCookieHeaders.push(setCookie(...cookie));
});
pluginResponse.clearCookies.forEach((cookie) => {
setCookieHeaders.push(clearCookie(...cookie));
});
for (let header of setCookieHeaders) {
grpcHeaders.push({
header: {
key: "Set-Cookie",
value: header,
},
append: {
value: false,
},
});
}
// deal with headers
for (let header in pluginResponse.headers) {
grpcHeaders.push({
header: {
key: header,
value: pluginResponse.headers[header],
},
append: {
value: false,
},
});
}
/**
* translate the pluginResponse to the appropriate grpc response
* https://cloud.google.com/natural-language/docs/reference/rpc/google.rpc#status
*/