Add utf7 decoding for Gmail labels

.gitignore

@@ -0,0 +1,3 @@
+.idea
+.vscode
+node_modules

lib/Connection.js

@@ -1448,7 +1448,7 @@ Connection.prototype._resUntagged = function(info) {
                 if (toget[i] === 'X-GM-LABELS') {
                   var labels = info.text[keys[j]];
                   for (var k = 0, lenk = labels.length; k < lenk; ++k)
-                    labels[k] = (''+labels[k]).replace(RE_ESCAPE, '\\');
+                    labels[k] = utf7.decode((''+labels[k]).replace(RE_ESCAPE, '\\'));
                 }
                 key = FETCH_ATTR_MAP[toget[i]];
                 if (!key)

lib/Parser.js

@@ -428,7 +428,12 @@ function parseFetch(text, literals, seqno) {
   var list = parseExpr(text, literals)[0], attrs = {}, m, body;
   // list is [KEY1, VAL1, KEY2, VAL2, .... KEYn, VALn]
   for (var i = 0, len = list.length, key, val; i < len; i += 2) {
-    key = list[i].toLowerCase();
+    // Coerce the key token to a string before lowercasing. Some servers send
+    // integer-shaped atoms at key positions in malformed FETCH responses;
+    // convStr returns a JS number for those, and Number has no .toLowerCase.
+    // Coercing here keeps value-position numeric atoms (RFC822.SIZE, MODSEQ,
+    // etc.) untouched.
+    key = String(list[i]).toLowerCase();
     val = list[i + 1];
     if (key === 'envelope')
       val = parseFetchEnvelope(val);

package.json

@@ -1,5 +1,5 @@
-{ "name": "imap",
-  "version": "0.8.19",
+{ "name": "@integromat/imap",
+  "version": "0.8.22",
   "author": "Brian White <mscdex@mscdex.net>",
   "description": "An IMAP module for node.js that makes communicating with IMAP servers easy",
   "main": "./lib/Connection",
@@ -13,5 +13,5 @@
   "engines": { "node": ">=0.8.0" },
   "keywords": [ "imap", "mail", "email", "reader", "client" ],
   "licenses": [ { "type": "MIT", "url": "http://github.com/mscdex/node-imap/raw/master/LICENSE" } ],
-  "repository": { "type": "git", "url": "http://github.com/mscdex/node-imap.git" }
+  "repository": { "type": "git", "url": "https://github.com/integromat/node-imap.git" }
 }

test/test-parser.js

@@ -310,6 +310,15 @@ var CR = '\r', LF = '\n', CRLF = CR + LF;
               ],
     what: 'Untagged FETCH with non-body literal'
   },
+  { source: ['* 1 FETCH (12345 NIL)', CRLF],
+    expected: [ { type: 'fetch',
+                  num: 1,
+                  textCode: undefined,
+                  text: { '12345': null }
+                }
+              ],
+    what: 'Untagged FETCH with integer-shaped key token (regression: no TypeError on .toLowerCase)'
+  },
   { source: ['* 12 FETCH (INTERNALDATE {2',
              '6}' + CRLF + '17-Jul-1996 02:44:25 -0700)' + CRLF],
     expected: [ { type: 'fetch',