2015-12-10 13:58:50 +01:00
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/**
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2017-01-11 16:24:33 +01:00
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* Copyright JS Foundation and other contributors, http://js.foundation
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2015-12-10 13:58:50 +01:00
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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module.exports = function(RED) {
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"use strict";
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2018-05-23 10:16:20 +02:00
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var request = require("request");
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2015-12-10 13:58:50 +01:00
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var mustache = require("mustache");
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var querystring = require("querystring");
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2017-06-05 12:33:24 +02:00
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var cookie = require("cookie");
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2017-06-27 12:23:13 +02:00
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var hashSum = require("hash-sum");
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2015-12-10 13:58:50 +01:00
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function HTTPRequest(n) {
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RED.nodes.createNode(this,n);
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2016-04-27 13:31:54 +02:00
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var node = this;
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2015-12-10 13:58:50 +01:00
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var nodeUrl = n.url;
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var isTemplatedUrl = (nodeUrl||"").indexOf("{{") != -1;
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var nodeMethod = n.method || "GET";
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2020-02-26 20:45:01 +01:00
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var paytoqs = false;
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var paytobody = false;
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2019-08-12 21:52:00 +02:00
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var nodeHTTPPersistent = n["persist"];
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2016-04-27 13:31:54 +02:00
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if (n.tls) {
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var tlsNode = RED.nodes.getNode(n.tls);
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}
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2015-12-10 13:58:50 +01:00
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this.ret = n.ret || "txt";
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2019-02-27 23:15:31 +01:00
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this.authType = n.authType || "basic";
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2016-02-15 10:45:58 +01:00
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if (RED.settings.httpRequestTimeout) { this.reqTimeout = parseInt(RED.settings.httpRequestTimeout) || 120000; }
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else { this.reqTimeout = 120000; }
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2015-12-10 13:58:50 +01:00
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2020-02-26 20:45:01 +01:00
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if (n.paytoqs === true || n.paytoqs === "query") { paytoqs = true; }
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else if (n.paytoqs === "body") { paytobody = true; }
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2015-12-10 13:58:50 +01:00
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var prox, noprox;
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2019-11-03 10:54:23 +01:00
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if (process.env.http_proxy) { prox = process.env.http_proxy; }
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if (process.env.HTTP_PROXY) { prox = process.env.HTTP_PROXY; }
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if (process.env.no_proxy) { noprox = process.env.no_proxy.split(","); }
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if (process.env.NO_PROXY) { noprox = process.env.NO_PROXY.split(","); }
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2015-12-10 13:58:50 +01:00
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2018-10-03 02:58:25 +02:00
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var proxyConfig = null;
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if (n.proxy) {
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proxyConfig = RED.nodes.getNode(n.proxy);
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prox = proxyConfig.url;
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noprox = proxyConfig.noproxy;
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}
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2019-08-14 16:54:06 +02:00
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this.on("input",function(msg,nodeSend,nodeDone) {
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2015-12-10 13:58:50 +01:00
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var preRequestTimestamp = process.hrtime();
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node.status({fill:"blue",shape:"dot",text:"httpin.status.requesting"});
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2017-04-09 01:43:15 +02:00
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var url = nodeUrl || msg.url;
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2015-12-10 13:58:50 +01:00
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if (msg.url && nodeUrl && (nodeUrl !== msg.url)) { // revert change below when warning is finally removed
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node.warn(RED._("common.errors.nooverride"));
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}
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if (isTemplatedUrl) {
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url = mustache.render(nodeUrl,msg);
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}
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if (!url) {
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node.error(RED._("httpin.errors.no-url"),msg);
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2019-08-14 16:54:06 +02:00
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nodeDone();
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2017-05-20 03:35:41 +02:00
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return;
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2015-12-10 13:58:50 +01:00
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}
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// url must start http:// or https:// so assume http:// if not set
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2017-05-15 23:04:47 +02:00
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if (url.indexOf("://") !== -1 && url.indexOf("http") !== 0) {
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node.warn(RED._("httpin.errors.invalid-transport"));
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node.status({fill:"red",shape:"ring",text:"httpin.errors.invalid-transport"});
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2019-08-14 16:54:06 +02:00
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nodeDone();
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2017-05-15 23:04:47 +02:00
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return;
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}
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2015-12-10 13:58:50 +01:00
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if (!((url.indexOf("http://") === 0) || (url.indexOf("https://") === 0))) {
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2016-04-27 13:31:54 +02:00
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if (tlsNode) {
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url = "https://"+url;
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} else {
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url = "http://"+url;
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}
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2015-12-10 13:58:50 +01:00
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}
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var method = nodeMethod.toUpperCase() || "GET";
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if (msg.method && n.method && (n.method !== "use")) { // warn if override option not set
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node.warn(RED._("common.errors.nooverride"));
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}
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if (msg.method && n.method && (n.method === "use")) {
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method = msg.method.toUpperCase(); // use the msg parameter
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}
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2019-11-03 12:08:24 +01:00
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2019-11-18 18:03:59 +01:00
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var isHttps = (/^https/i.test(url));
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2019-11-03 12:08:24 +01:00
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2018-05-23 10:16:20 +02:00
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var opts = {};
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opts.url = url;
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2019-11-03 12:08:24 +01:00
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// set defaultport, else when using HttpsProxyAgent, it's defaultPort of 443 will be used :(.
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opts.defaultPort = isHttps?443:80;
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2018-05-23 10:16:20 +02:00
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opts.timeout = node.reqTimeout;
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2015-12-10 13:58:50 +01:00
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opts.method = method;
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opts.headers = {};
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2018-05-23 10:16:20 +02:00
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opts.encoding = null; // Force NodeJs to return a Buffer (instead of a string)
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opts.maxRedirects = 21;
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2018-09-10 03:47:05 +02:00
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opts.jar = request.jar();
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2018-10-03 02:58:25 +02:00
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opts.proxy = null;
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2019-08-09 20:23:28 +02:00
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opts.forever = nodeHTTPPersistent;
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2019-04-02 21:00:25 +02:00
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if (msg.requestTimeout !== undefined) {
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2018-11-01 22:27:04 +01:00
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if (isNaN(msg.requestTimeout)) {
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2018-11-01 22:32:25 +01:00
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node.warn(RED._("httpin.errors.timeout-isnan"));
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2019-04-02 21:00:25 +02:00
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} else if (msg.requestTimeout < 1) {
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2018-11-01 22:32:25 +01:00
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node.warn(RED._("httpin.errors.timeout-isnegative"));
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2018-11-01 22:27:04 +01:00
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} else {
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opts.timeout = msg.requestTimeout;
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}
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}
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2016-09-30 23:12:33 +02:00
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var ctSet = "Content-Type"; // set default camel case
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var clSet = "Content-Length";
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2015-12-10 13:58:50 +01:00
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if (msg.headers) {
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2017-06-27 12:23:13 +02:00
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if (msg.headers.hasOwnProperty('x-node-red-request-node')) {
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var headerHash = msg.headers['x-node-red-request-node'];
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delete msg.headers['x-node-red-request-node'];
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var hash = hashSum(msg.headers);
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if (hash === headerHash) {
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delete msg.headers;
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}
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}
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if (msg.headers) {
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for (var v in msg.headers) {
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if (msg.headers.hasOwnProperty(v)) {
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var name = v.toLowerCase();
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if (name !== "content-type" && name !== "content-length") {
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// only normalise the known headers used later in this
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// function. Otherwise leave them alone.
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name = v;
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}
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else if (name === 'content-type') { ctSet = v; }
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else { clSet = v; }
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opts.headers[name] = msg.headers[v];
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2015-12-10 13:58:50 +01:00
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}
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}
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}
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}
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2018-03-29 09:28:44 +02:00
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if (msg.hasOwnProperty('followRedirects')) {
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2018-05-23 10:16:20 +02:00
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opts.followRedirect = msg.followRedirects;
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2021-04-07 15:35:29 +02:00
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opts.followAllRedirects = !!opts.followRedirect;
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2018-09-10 03:47:05 +02:00
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}
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2018-12-04 16:39:01 +01:00
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var redirectList = [];
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2018-09-10 03:47:05 +02:00
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if (!opts.hasOwnProperty('followRedirect') || opts.followRedirect) {
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opts.followRedirect = function(res) {
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2018-12-04 16:39:01 +01:00
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var redirectInfo = {
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location: res.headers.location,
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};
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if (res.headers.hasOwnProperty('set-cookie')) {
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redirectInfo.cookies = extractCookies(res.headers['set-cookie']);
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}
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redirectList.push(redirectInfo);
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2018-09-10 03:47:05 +02:00
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if (this.headers.cookie) {
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delete this.headers.cookie;
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}
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return true;
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};
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}
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if (opts.headers.hasOwnProperty('cookie')) {
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2019-01-30 11:24:19 +01:00
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var cookies = cookie.parse(opts.headers.cookie, {decode:String});
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2018-09-10 03:47:05 +02:00
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for (var name in cookies) {
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2019-01-30 11:24:19 +01:00
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opts.jar.setCookie(cookie.serialize(name, cookies[name], {encode:String}), url);
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2018-03-29 09:28:44 +02:00
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}
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2018-09-10 03:47:05 +02:00
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delete opts.headers.cookie;
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}
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2017-06-05 12:33:24 +02:00
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if (msg.cookies) {
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for (var name in msg.cookies) {
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if (msg.cookies.hasOwnProperty(name)) {
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if (msg.cookies[name] === null || msg.cookies[name].value === null) {
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// This case clears a cookie for HTTP In/Response nodes.
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// Ignore for this node.
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} else if (typeof msg.cookies[name] === 'object') {
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2019-02-01 09:15:07 +01:00
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if(msg.cookies[name].encode === false){
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// If the encode option is false, the value is not encoded.
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opts.jar.setCookie(cookie.serialize(name, msg.cookies[name].value, {encode: String}), url);
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} else {
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// The value is encoded by encodeURIComponent().
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opts.jar.setCookie(cookie.serialize(name, msg.cookies[name].value), url);
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}
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2017-06-05 12:33:24 +02:00
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} else {
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2019-01-30 11:24:19 +01:00
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opts.jar.setCookie(cookie.serialize(name, msg.cookies[name]), url);
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2017-06-05 12:33:24 +02:00
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}
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}
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}
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}
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2019-02-27 23:15:31 +01:00
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if (this.credentials) {
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if (this.authType === "basic") {
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if (this.credentials.user) {
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opts.auth = {
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user: this.credentials.user,
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pass: this.credentials.password || ""
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};
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}
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} else if (this.authType === "digest") {
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if (this.credentials.user) {
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2019-03-06 22:21:35 +01:00
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// The first request will be sent without auth information. Based on the 401 response, the library can determine
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// which auth type is required by the server. Then the request is resubmitted with the appropriate auth header.
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2019-02-27 23:15:31 +01:00
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opts.auth = {
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user: this.credentials.user,
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pass: this.credentials.password || "",
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sendImmediately: false
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};
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}
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} else if (this.authType === "bearer") {
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opts.auth = {
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bearer: this.credentials.password || ""
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};
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}
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2015-12-10 13:58:50 +01:00
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}
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var payload = null;
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2018-02-01 00:54:06 +01:00
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if (method !== 'GET' && method !== 'HEAD' && typeof msg.payload !== "undefined") {
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2019-06-08 21:42:14 +02:00
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if (opts.headers['content-type'] == 'multipart/form-data' && typeof msg.payload === "object") {
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opts.formData = {};
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for (var opt in msg.payload) {
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if (msg.payload.hasOwnProperty(opt)) {
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var val = msg.payload[opt];
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if (val !== undefined && val !== null) {
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if (typeof val === 'string' || Buffer.isBuffer(val)) {
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opts.formData[opt] = val;
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} else if (typeof val === 'object' && val.hasOwnProperty('value')) {
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// Treat as file to upload - ensure it has an options object
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// as request complains if it doesn't
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if (!val.hasOwnProperty('options')) {
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val.options = {};
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}
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opts.formData[opt] = val;
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} else {
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opts.formData[opt] = JSON.stringify(val);
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}
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}
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}
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}
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2015-12-10 13:58:50 +01:00
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} else {
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2019-03-05 16:55:21 +01:00
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if (typeof msg.payload === "string" || Buffer.isBuffer(msg.payload)) {
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payload = msg.payload;
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} else if (typeof msg.payload == "number") {
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payload = msg.payload+"";
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2015-12-10 13:58:50 +01:00
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} else {
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2019-03-05 16:55:21 +01:00
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if (opts.headers['content-type'] == 'application/x-www-form-urlencoded') {
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payload = querystring.stringify(msg.payload);
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} else {
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payload = JSON.stringify(msg.payload);
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if (opts.headers['content-type'] == null) {
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opts.headers[ctSet] = "application/json";
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}
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2015-12-10 13:58:50 +01:00
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}
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}
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2019-03-05 16:55:21 +01:00
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if (opts.headers['content-length'] == null) {
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if (Buffer.isBuffer(payload)) {
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opts.headers[clSet] = payload.length;
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} else {
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opts.headers[clSet] = Buffer.byteLength(payload);
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}
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2015-12-10 13:58:50 +01:00
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}
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2019-03-05 16:55:21 +01:00
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opts.body = payload;
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2015-12-10 13:58:50 +01:00
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}
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}
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2018-11-15 18:11:27 +01:00
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2019-02-04 22:30:11 +01:00
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if (method == 'GET' && typeof msg.payload !== "undefined" && paytoqs) {
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2018-11-15 18:11:27 +01:00
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if (typeof msg.payload === "object") {
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2019-02-04 22:30:11 +01:00
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try {
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if (opts.url.indexOf("?") !== -1) {
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opts.url += (opts.url.endsWith("?")?"":"&") + querystring.stringify(msg.payload);
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} else {
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opts.url += "?" + querystring.stringify(msg.payload);
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}
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} catch(err) {
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node.error(RED._("httpin.errors.invalid-payload"),msg);
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2019-08-14 16:54:06 +02:00
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nodeDone();
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2019-02-04 22:30:11 +01:00
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return;
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2018-11-15 18:11:27 +01:00
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}
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} else {
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node.error(RED._("httpin.errors.invalid-payload"),msg);
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2019-08-14 16:54:06 +02:00
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nodeDone();
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2018-11-15 18:11:27 +01:00
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return;
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2021-04-07 15:35:29 +02:00
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}
|
2020-02-25 22:28:15 +01:00
|
|
|
} else if ( method == "GET" && typeof msg.payload !== "undefined" && paytobody) {
|
|
|
|
if (typeof msg.payload === "object") {
|
|
|
|
opts.body = JSON.stringify(msg.payload);
|
|
|
|
} else if (typeof msg.payload == "number") {
|
|
|
|
opts.body = msg.payload+"";
|
|
|
|
} else if (typeof msg.payload === "string" || Buffer.isBuffer(msg.payload)) {
|
|
|
|
opts.body = msg.payload;
|
2018-11-15 18:11:27 +01:00
|
|
|
}
|
|
|
|
}
|
2019-02-04 22:30:11 +01:00
|
|
|
|
2016-09-30 23:12:33 +02:00
|
|
|
// revert to user supplied Capitalisation if needed.
|
|
|
|
if (opts.headers.hasOwnProperty('content-type') && (ctSet !== 'content-type')) {
|
|
|
|
opts.headers[ctSet] = opts.headers['content-type'];
|
|
|
|
delete opts.headers['content-type'];
|
|
|
|
}
|
|
|
|
if (opts.headers.hasOwnProperty('content-length') && (clSet !== 'content-length')) {
|
|
|
|
opts.headers[clSet] = opts.headers['content-length'];
|
|
|
|
delete opts.headers['content-length'];
|
|
|
|
}
|
2021-04-07 15:35:29 +02:00
|
|
|
|
2015-12-10 13:58:50 +01:00
|
|
|
var noproxy;
|
|
|
|
if (noprox) {
|
2019-11-18 18:14:38 +01:00
|
|
|
for (var i = 0; i < noprox.length; i += 1) {
|
2015-12-10 13:58:50 +01:00
|
|
|
if (url.indexOf(noprox[i]) !== -1) { noproxy=true; }
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (prox && !noproxy) {
|
|
|
|
var match = prox.match(/^(http:\/\/)?(.+)?:([0-9]+)?/i);
|
|
|
|
if (match) {
|
2018-05-23 10:16:20 +02:00
|
|
|
opts.proxy = prox;
|
|
|
|
} else {
|
|
|
|
node.warn("Bad proxy url: "+ prox);
|
|
|
|
opts.proxy = null;
|
2015-12-10 13:58:50 +01:00
|
|
|
}
|
|
|
|
}
|
2018-10-03 02:58:25 +02:00
|
|
|
if (proxyConfig && proxyConfig.credentials && opts.proxy == proxyConfig.url) {
|
|
|
|
var proxyUsername = proxyConfig.credentials.username || '';
|
|
|
|
var proxyPassword = proxyConfig.credentials.password || '';
|
|
|
|
if (proxyUsername || proxyPassword) {
|
|
|
|
opts.headers['proxy-authorization'] =
|
|
|
|
'Basic ' +
|
|
|
|
Buffer.from(proxyUsername + ':' + proxyPassword).toString('base64');
|
|
|
|
}
|
|
|
|
}
|
2016-04-27 13:31:54 +02:00
|
|
|
if (tlsNode) {
|
|
|
|
tlsNode.addTLSOptions(opts);
|
2017-03-23 20:48:48 +01:00
|
|
|
} else {
|
|
|
|
if (msg.hasOwnProperty('rejectUnauthorized')) {
|
|
|
|
opts.rejectUnauthorized = msg.rejectUnauthorized;
|
|
|
|
}
|
2016-04-27 13:31:54 +02:00
|
|
|
}
|
2018-05-23 10:16:20 +02:00
|
|
|
request(opts, function(err, res, body) {
|
|
|
|
if(err){
|
|
|
|
if(err.code === 'ETIMEDOUT' || err.code === 'ESOCKETTIMEDOUT') {
|
|
|
|
node.error(RED._("common.notification.errors.no-response"), msg);
|
|
|
|
node.status({fill:"red", shape:"ring", text:"common.notification.errors.no-response"});
|
|
|
|
}else{
|
|
|
|
node.error(err,msg);
|
|
|
|
node.status({fill:"red", shape:"ring", text:err.code});
|
|
|
|
}
|
|
|
|
msg.payload = err.toString() + " : " + url;
|
|
|
|
msg.statusCode = err.code;
|
2019-08-14 16:54:06 +02:00
|
|
|
nodeSend(msg);
|
|
|
|
nodeDone();
|
2018-05-23 10:16:20 +02:00
|
|
|
}else{
|
|
|
|
msg.statusCode = res.statusCode;
|
|
|
|
msg.headers = res.headers;
|
|
|
|
msg.responseUrl = res.request.uri.href;
|
|
|
|
msg.payload = body;
|
2018-12-04 16:39:01 +01:00
|
|
|
msg.redirectList = redirectList;
|
2018-12-04 16:46:46 +01:00
|
|
|
|
2018-05-23 10:16:20 +02:00
|
|
|
if (msg.headers.hasOwnProperty('set-cookie')) {
|
2018-12-04 16:39:01 +01:00
|
|
|
msg.responseCookies = extractCookies(msg.headers['set-cookie']);
|
2017-05-24 12:18:52 +02:00
|
|
|
}
|
2018-05-23 10:16:20 +02:00
|
|
|
msg.headers['x-node-red-request-node'] = hashSum(msg.headers);
|
|
|
|
// msg.url = url; // revert when warning above finally removed
|
2017-04-09 01:43:15 +02:00
|
|
|
if (node.metric()) {
|
|
|
|
// Calculate request time
|
|
|
|
var diff = process.hrtime(preRequestTimestamp);
|
|
|
|
var ms = diff[0] * 1e3 + diff[1] * 1e-6;
|
|
|
|
var metricRequestDurationMillis = ms.toFixed(3);
|
|
|
|
node.metric("duration.millis", msg, metricRequestDurationMillis);
|
|
|
|
if (res.client && res.client.bytesRead) {
|
|
|
|
node.metric("size.bytes", msg, res.client.bytesRead);
|
2017-03-04 10:29:38 +01:00
|
|
|
}
|
|
|
|
}
|
2017-05-24 12:18:52 +02:00
|
|
|
|
2018-05-23 10:16:20 +02:00
|
|
|
// Convert the payload to the required return type
|
|
|
|
if (node.ret !== "bin") {
|
|
|
|
msg.payload = msg.payload.toString('utf8'); // txt
|
2017-05-24 12:18:52 +02:00
|
|
|
|
2018-05-23 10:16:20 +02:00
|
|
|
if (node.ret === "obj") {
|
|
|
|
try { msg.payload = JSON.parse(msg.payload); } // obj
|
|
|
|
catch(e) { node.warn(RED._("httpin.errors.json-error")); }
|
2017-03-05 15:07:16 +01:00
|
|
|
}
|
2017-07-19 23:37:29 +02:00
|
|
|
}
|
2018-05-23 10:16:20 +02:00
|
|
|
node.status({});
|
2019-08-14 16:54:06 +02:00
|
|
|
nodeSend(msg);
|
|
|
|
nodeDone();
|
2018-05-23 10:16:20 +02:00
|
|
|
}
|
2015-12-10 13:58:50 +01:00
|
|
|
});
|
|
|
|
});
|
2016-10-10 12:08:06 +02:00
|
|
|
|
|
|
|
this.on("close",function() {
|
|
|
|
node.status({});
|
|
|
|
});
|
2018-12-04 16:39:01 +01:00
|
|
|
|
|
|
|
function extractCookies(setCookie) {
|
|
|
|
var cookies = {};
|
|
|
|
setCookie.forEach(function(c) {
|
|
|
|
var parsedCookie = cookie.parse(c);
|
|
|
|
var eq_idx = c.indexOf('=');
|
|
|
|
var key = c.substr(0, eq_idx).trim()
|
|
|
|
parsedCookie.value = parsedCookie[key];
|
|
|
|
delete parsedCookie[key];
|
|
|
|
cookies[key] = parsedCookie;
|
|
|
|
});
|
|
|
|
return cookies;
|
|
|
|
}
|
2015-12-10 13:58:50 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
RED.nodes.registerType("http request",HTTPRequest,{
|
|
|
|
credentials: {
|
|
|
|
user: {type:"text"},
|
|
|
|
password: {type: "password"}
|
|
|
|
}
|
|
|
|
});
|
|
|
|
}
|