Smtp server (#923)
* Email Mta Node added security and authentication * Documentation updated * Original formatting restored
This commit is contained in:
David D'Hauwe
GitHub
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dcfd055860
commit
0fa0816506
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@ -306,8 +306,48 @@
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<script type="text/html" data-template-name="e-mail mta">
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<div class="form-row">
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<label for="node-input-port"><i class="fa fa-random"></i> <span data-i18n="email.label.port"></span></label>
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<input type="text" id="node-input-port" style="width:70%;"/>
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<input type="text" id="node-input-port" style="width:100px">
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<label style="width:40px"> </label>
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<input type="checkbox" id="node-input-secure" style="display:inline-block; width:20px; vertical-align:baseline;">
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<span data-i18n="email.label.enableSecure"></span>
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</div>
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<div class="form-row">
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<label for="node-input-starttls"><i class="fa fa-lock"></i> <span data-i18n="email.label.enableStarttls"></span></label>
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<input type="checkbox" id="node-input-starttls" style="display:inline-block; width:20px; vertical-align:baseline;">
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<span data-i18n="email.label.starttlsUpgrade"></span>
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</div>
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<div class="form-row">
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<label for="node-input-certFile"><i class="fa fa-file"></i>
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<span data-i18n="email.label.certFile"></span></label>
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<input type="text" id="node-input-certFile" placeholder="server.crt" style="width:100%">
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</div>
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<div class="form-row">
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<label for="node-input-keyFile"><i class="fa fa-key"></i>
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<span data-i18n="email.label.keyFile"></span></label>
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<input type="text" id="node-input-keyFile" placeholder="private.key" style="width:100%">
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</div>
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<div class="form-row">
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<label for="node-input-auth"><i class="fa fa-user"></i> <span data-i18n="email.label.users"></span></label>
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<label style="width:144px"> </label>
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<input type="checkbox" id="node-input-auth" style="display:inline-block; width:20px; vertical-align:baseline;">
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<span data-i18n="email.label.auth"></span>
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</div>
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<div class="form-row node-input-email-users-container-row" style="margin-bottom: 0px;">
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<div id="node-input-email-users-container-div" style="box-sizing: border-box; border-radius: 5px;
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height: 200px; padding: 5px; border: 1px solid #ccc; overflow-y:scroll;">
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<ol id="node-input-email-users-container" style="list-style-type:none; margin: 0;"></ol>
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</div>
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</div>
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<div class="form-row">
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<a href="#" class="editor-button editor-button-small" id="node-input-email-users-add" style="margin-top: 4px;">
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<i class="fa fa-plus"></i>
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<span data-i18n="email.label.addButton"></span>
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</a>
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</div>
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<div class="form-row">
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<label for="node-input-expert"><i class="fa fa-cog"></i> <span data-i18n="email.label.expert"></span></label>
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<input type="text" id="node-input-expert">
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</div>
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<div class="form-row">
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<label for="node-input-name"><i class="fa fa-tag"></i> <span data-i18n="node-red:common.label.name"></span></label>
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<input type="text" id="node-input-name" data-i18n="[placeholder]node-red:common.label.name">
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@ -316,22 +356,127 @@
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</script>
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<script type="text/javascript">
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RED.nodes.registerType('e-mail mta',{
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RED.nodes.registerType('e-mail mta', {
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category: 'social',
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color:"#c7e9c0",
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color: "#c7e9c0",
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defaults: {
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name: {value:""},
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port: {value:"1025",required:true},
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name: { value: "" },
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port: { value: "1025", required: true, validate: RED.validators.number() },
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secure: { value: false },
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starttls: { value: false },
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certFile: { value: "" },
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keyFile: { value: "" },
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users: { value: [] },
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auth: { value: false },
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expert: { value: '{"logger":false}' }
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},
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inputs:0,
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outputs:1,
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inputs: 0,
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outputs: 1,
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icon: "envelope.png",
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paletteLabel: function() { return this._("email.email") + " MTA" },
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label: function() {
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return this.name||this._("email.email") + " MTA";
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paletteLabel: function () { return this._("email.email") + " MTA" },
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label: function () {
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return this.name || this._("email.email") + " MTA";
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},
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labelStyle: function() {
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return this.name?"node_label_italic":"";
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labelStyle: function () {
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return this.name ? "node_label_italic" : "";
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},
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oneditprepare: function () {
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let node = this;
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// Expert settings
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$("#node-input-expert").typedInput({
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type: "json",
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types: ["json"]
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})
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// User Management
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let cacheItemCount = 0;
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if (node.users && node.users.length > 0) {
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cacheItemCount = node.users.length;
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node.users.forEach(function (element, index, array) {
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generateUserEntry(element, index);
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});
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}
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function generateUserEntry(user, id) {
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let container = $("<li/>", {
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style: "background: #fefefe; margin:0; padding:8px 0px; border-bottom: 1px solid #ccc;"
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});
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let row = $('<div id="row' + id + '"/>').appendTo(container);
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$('<i style="color: #eee; cursor: move;" class="node-input-email-users-handle fa fa-bars"></i>').appendTo(row);
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let userField = $("<input/>", {
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id: "node-input-email-users-name" + id,
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class: "userName",
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type: "text",
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style: "margin-left:5px;width:100px;",
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placeholder: "name"
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}).appendTo(row);
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let passwordField = $("<input/>", {
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id: "node-input-email-users-password" + id,
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class: "userPassword",
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type: "password",
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style: "margin: 0 auto;width:50%;min-width:20px;margin-left:5px",
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placeholder: "password"
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}).appendTo(row);
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userField.val(user.name);
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passwordField.val(user.password);
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let finalspan = $("<span/>", {
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style: "float: right;margin-right: 10px;"
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}).appendTo(row);
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let removeUserButton = $("<a/>", {
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href: "#",
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id: "node-button-user-remove" + id,
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class: "editor-button editor-button-small",
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style: "margin-top: 7px; margin-left: 5px;"
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}).appendTo(finalspan);
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$("<i/>", { class: "fa fa-remove" }).appendTo(removeUserButton);
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removeUserButton.click(function () {
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container.css({ background: "#fee" });
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container.fadeOut(300, function () {
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$(this).remove();
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});
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});
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$("#node-input-email-users-container").append(container);
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}
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$("#node-input-email-users-container").sortable({
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axis: "y",
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handle: ".node-input-email-users-handle",
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cursor: "move"
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});
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$("#node-input-email-users-container .node-input-email-users-handle").disableSelection();
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$("#node-input-email-users-add").click(function () {
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if (!cacheItemCount || cacheItemCount < 0) {
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cacheItemCount = 0;
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}
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generateUserEntry({ name: "", password: "" }, cacheItemCount++);
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$("#node-input-email-users-container-div").scrollTop(
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$("#node-input-email-users-container-div").get(0).scrollHeight
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);
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});
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},
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oneditsave: function () {
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let node = this;
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let cacheUsers = $("#node-input-email-users-container").children();
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node.users = [];
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cacheUsers.each(function () {
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node.users.push({
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name: $(this)
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.find(".userName")
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.val(),
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password: $(this)
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.find(".userPassword")
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.val()
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});
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});
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}
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});
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</script>
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</script>
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@ -19,6 +19,7 @@ module.exports = function(RED) {
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var simpleParser = require("mailparser").simpleParser;
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var SMTPServer = require("smtp-server").SMTPServer;
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//var microMTA = require("micromta").microMTA;
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var fs = require('fs');
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if (parseInt(process.version.split("v")[1].split(".")[0]) < 8) {
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throw "Error : Requires nodejs version >= 8.";
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@ -565,47 +566,81 @@ module.exports = function(RED) {
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function EmailMtaNode(n) {
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RED.nodes.createNode(this,n);
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RED.nodes.createNode(this, n);
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this.port = n.port;
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this.secure = n.secure;
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this.starttls = n.starttls;
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this.certFile = n.certFile;
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this.keyFile = n.keyFile;
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this.users = n.users;
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this.auth = n.auth;
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try {
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this.options = JSON.parse(n.expert);
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} catch (error) {
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this.options = {};
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}
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var node = this;
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if (!Array.isArray(node.options.disabledCommands)) {
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node.options.disabledCommands = [];
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}
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node.options.secure = node.secure;
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if (node.certFile) {
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node.options.cert = fs.readFileSync(node.certFile);
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}
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if (node.keyFile) {
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node.options.key = fs.readFileSync(node.keyFile);
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}
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if (!node.starttls) {
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node.options.disabledCommands.push("STARTTLS");
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}
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if (!node.auth) {
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node.options.disabledCommands.push("AUTH");
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}
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node.mta = new SMTPServer({
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secure: false,
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logger: false,
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disabledCommands: ['AUTH', 'STARTTLS'],
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onData: function (stream, session, callback) {
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simpleParser(stream, { skipTextToHtml:true, skipTextLinks:true }, (err, parsed) => {
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if (err) { node.error(RED._("email.errors.parsefail"),err); }
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else {
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node.status({fill:"green", shape:"dot", text:""});
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var msg = {}
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msg.payload = parsed.text;
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msg.topic = parsed.subject;
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msg.date = parsed.date;
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msg.header = {};
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parsed.headers.forEach((v, k) => {msg.header[k] = v;});
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if (parsed.html) { msg.html = parsed.html; }
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if (parsed.to) {
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if (typeof(parsed.to) === "string" && parsed.to.length > 0) { msg.to = parsed.to; }
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else if (parsed.to.hasOwnProperty("text") && parsed.to.text.length > 0) { msg.to = parsed.to.text; }
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}
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if (parsed.cc) {
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if (typeof(parsed.cc) === "string" && parsed.cc.length > 0) { msg.cc = parsed.cc; }
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else if (parsed.cc.hasOwnProperty("text") && parsed.cc.text.length > 0) { msg.cc = parsed.cc.text; }
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}
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if (parsed.cc && parsed.cc.length > 0) { msg.cc = parsed.cc; }
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if (parsed.bcc && parsed.bcc.length > 0) { msg.bcc = parsed.bcc; }
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if (parsed.from && parsed.from.value && parsed.from.value.length > 0) { msg.from = parsed.from.value[0].address; }
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if (parsed.attachments) { msg.attachments = parsed.attachments; }
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else { msg.attachments = []; }
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node.send(msg); // Propagate the message down the flow
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setTimeout(function() { node.status({})}, 500);
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node.options.onData = function (stream, session, callback) {
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simpleParser(stream, { skipTextToHtml:true, skipTextLinks:true }, (err, parsed) => {
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if (err) { node.error(RED._("email.errors.parsefail"),err); }
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else {
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node.status({fill:"green", shape:"dot", text:""});
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var msg = {}
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msg.payload = parsed.text;
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msg.topic = parsed.subject;
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msg.date = parsed.date;
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msg.header = {};
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parsed.headers.forEach((v, k) => {msg.header[k] = v;});
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if (parsed.html) { msg.html = parsed.html; }
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if (parsed.to) {
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if (typeof(parsed.to) === "string" && parsed.to.length > 0) { msg.to = parsed.to; }
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else if (parsed.to.hasOwnProperty("text") && parsed.to.text.length > 0) { msg.to = parsed.to.text; }
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}
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callback();
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});
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if (parsed.cc) {
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if (typeof(parsed.cc) === "string" && parsed.cc.length > 0) { msg.cc = parsed.cc; }
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else if (parsed.cc.hasOwnProperty("text") && parsed.cc.text.length > 0) { msg.cc = parsed.cc.text; }
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}
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if (parsed.cc && parsed.cc.length > 0) { msg.cc = parsed.cc; }
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if (parsed.bcc && parsed.bcc.length > 0) { msg.bcc = parsed.bcc; }
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if (parsed.from && parsed.from.value && parsed.from.value.length > 0) { msg.from = parsed.from.value[0].address; }
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if (parsed.attachments) { msg.attachments = parsed.attachments; }
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else { msg.attachments = []; }
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node.send(msg); // Propagate the message down the flow
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setTimeout(function() { node.status({})}, 500);
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}
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callback();
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});
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}
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node.options.onAuth = function (auth, session, callback) {
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let id = node.users.findIndex(function (item) {
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return item.name === auth.username;
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});
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if (id >= 0 && node.users[id].password === auth.password) {
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callback(null, { user: id + 1 });
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} else {
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callback(new Error("Invalid username or password"));
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}
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});
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}
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node.mta = new SMTPServer(node.options);
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node.mta.listen(node.port);
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@ -58,11 +58,19 @@
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<script type="text/html" data-help-name="e-mail mta">
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<p>Mail Transfer Agent - listens on a port for incoming SMTP mails.</p>
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<p><b>Note</b>: "NOT for production use" as there is no security built in.
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<p><b>Note</b>: Default configuration is "NOT for production use" as security is not enabled.
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This is primarily for local testing of outbound mail sending, but could be used
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as a mail forwarder to a real email service if required.</p>
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<p>To use ports below 1024, for example 25 or 465, you may need to get privileged access.
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On linux systems this can be done by running
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<pre>sudo setcap 'cap_net_bind_service=+eip' $(which node)</pre>
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and restarting Node-RED. Be aware - this gives all node applications access to all ports.</p>
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<h3>Security</h3>
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<p>When <i>Secure connection</i> is checked, the connection will use TLS.
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If not it is still possible to upgrade clear text socket to TLS socket by checking <i>Start TLS</i>.
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If you do no specify your own certificate (path to file) then a pregenerated self-signed certificate is used. Any respectful client refuses to accept such certificate.</p>
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<h3>Authentication</h3>
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<p>Authentication can be enabled (PLAIN or LOGIN). Add at least one user.</p>
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<h3>Expert</h3>
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<p>All options as described in <a href="https://nodemailer.com/extras/smtp-server/" target="_new">nodemailer SMTP server</a> can be made here.</p>
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</script>
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@ -34,7 +34,16 @@
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"never": "never",
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"required": "if required",
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"always": "always",
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"rejectUnauthorised": "Check server certificate is valid"
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"rejectUnauthorised": "Check server certificate is valid",
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"enableSecure": "Secure connection",
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"enableStarttls": "Start TLS",
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"starttlsUpgrade": "Upgrade cleartext connection with STARTTLS",
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"certFile": "Certificate",
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"keyFile":"Private key",
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"users": "Users",
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"auth": "Authenticate users",
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"addButton": "Add",
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"expert": "Expert"
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},
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"default-message": "__description__\n\nFile from Node-RED is attached: __filename__",
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"tip": {
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