Update IMAP node to use new 0.8.x API

Fixes Issue #96

this necessitates an update to the underlying npm
npm install --force imap

nodes/core/social/61-imap.html

@@ -27,10 +27,11 @@
 
 <script type="text/x-red" data-help-name="imap">
     <p>Repeatedly gets a <b>single email</b> from an IMAP server and forwards on as a msg if not already seen.</p>
-	<p>The subject is loaded into <b>msg.topic</b> and <b>msg.payload</b> is the body text. <b>msg.from</b> is also set if you need it.</p>
+    <p>The subject is loaded into <b>msg.topic</b> and <b>msg.payload</b> is the plain text body.
+       If there is text/html then that is returned in <b>msg.html</b>. <b>msg.from</b> and <b>msg.date</b> are also set if you need them.</p>
     <p>Uses the imap module - you also need to pre-configure your email settings in a file emailkeys.js as per below.</p>
     <p><pre>module.exports = { service: "Gmail", user: "blahblah@gmail.com", pass: "password", server: "imap.gmail.com", port: "993" }</pre></p>
-	<p>This <b>must</b> be located in the diectory above node-red.</p>
+    <p>This <b>must</b> be located in the directory above node-red.</p>
     <p><b>Note:</b> this node <i>only</i> gets the most recent single email from the inbox, so set the repeat (polling) time appropriately.</p>
 </script>
 

nodes/core/social/61-imap.js

@@ -31,14 +31,12 @@ var imap = new Imap({
     password: emailkey.pass,
     host: emailkey.server||"imap.gmail.com",
     port: emailkey.port||"993",
-    secure: true
+    tls: true,
+    tlsOptions: { rejectUnauthorized: false }
 });
 
 function openInbox(cb) {
-    imap.connect(function(err) {
-        if (err) util.log("[imap] : error : "+err);
     imap.openBox('INBOX', true, cb);
-    });
 }
 
 function ImapNode(n) {
@@ -56,42 +54,64 @@ function ImapNode(n) {
     }
 
     this.on("input", function(msg) {
-        openInbox(function(err, mailbox) {
+        imap.once('ready', function() {
-          if (err) node.log("error : "+err);
-          imap.seq.fetch(mailbox.messages.total + ':*', { struct: false },
-            { headers: ['from', 'subject'],
-              body: true,
-              cb: function(fetch) {
-                fetch.on('message', function(msg) {
-                  node.log('Read message no. ' + msg.seqno);
             var pay = {};
-                  var body = '';
+            openInbox(function(err, box) {
-                  msg.on('headers', function(hdrs) {
+                //if (err) throw err;
-                    pay.from = hdrs.from[0];
+                var f = imap.seq.fetch(box.messages.total + ':*', { bodies: ['HEADER.FIELDS (FROM SUBJECT DATE)','TEXT'] });
-                    pay.topic = hdrs.subject[0];
+                f.on('message', function(msg, seqno) {
+                    node.log('message: #'+ seqno);
+                    var prefix = '(#' + seqno + ') ';
+                    msg.on('body', function(stream, info) {
+                        var buffer = '';
+                        stream.on('data', function(chunk) {
+                            buffer += chunk.toString('utf8');
+                        });
+                        stream.on('end', function() {
+                            if (info.which !== 'TEXT') {
+                                pay.from = Imap.parseHeader(buffer).from[0];
+                                pay.topic = Imap.parseHeader(buffer).subject[0];
+                                pay.date = Imap.parseHeader(buffer).date[0];
+                            } else {
+                                var parts = buffer.split("Content-Type");
+                                for (var p in parts) {
+                                    if (parts[p].indexOf("text/plain") >= 0) {
+                                        pay.payload = parts[p].split("\n").slice(1,-2).join("\n").trim();
+                                    }
+                                    if (parts[p].indexOf("text/html") >= 0) {
+                                        pay.html = parts[p].split("\n").slice(1,-2).join("\n").trim();
+                                    }
+                                }
+                                //pay.body = buffer;
+                            }
                         });
-                  msg.on('data', function(chunk) {
-                    body += chunk.toString('utf8');
                     });
                     msg.on('end', function() {
-                    pay.payload = body;
+                        //node.log('Finished: '+prefix);
-                    if ((pay.topic !== oldmail.topic)|(pay.payload !== oldmail.payload)) {
+                    });
-                        oldmail = pay;
+                });
-                        //node.log("From: "+pay.from);
+                f.on('error', function(err) {
-                        node.log("Subj: "+pay.topic);
+                    node.warn('fetch error: ' + err);
-                        //node.log("Body: "+pay.payload);
+                });
+                f.on('end', function() {
+                    if (JSON.stringify(pay) !== oldmail) {
                         node.send(pay);
+                        oldmail = JSON.stringify(pay);
                     }
+                    imap.end();
+                    node.log('done fetching message');
                 });
             });
-              }
-            }, function(err) {
-                if (err) node.log("error : "+err);
-                node.log("Done fetching messages.");
-                imap.logout();
-            }
-          );
         });
+        imap.connect();
+    });
+
+    imap.on('error', function(err) {
+        util.log(err);
+    });
+
+    imap.on('end', function() {
+        //util.log('Connection ended');
     });
 
     this.on("close", function() {
@@ -100,6 +120,10 @@ function ImapNode(n) {
         }
     });
 
+    this.on("error", function(err) {
+        node.log("error: ",err);
+    });
+
     node.emit("input",{});
 }
 RED.nodes.registerType("imap",ImapNode);