2 files changed, 27 insertions, 23 deletions

diff --git a/lib/note.js b/lib/note.js
index a73d2d1d..0965b23e 100644
--- a/lib/note.js
+++ b/lib/note.js
@@ -47,6 +47,7 @@ var note = {
     checkNoteIdValid: checkNoteIdValid,
     checkNoteExist: checkNoteExist,
     getNoteTitle: getNoteTitle,
+    decodeTitle: decodeTitle,
     generateWebTitle: generateWebTitle,
     increaseViewCount: increaseViewCount,
     updatePermission: updatePermission,
@@ -96,6 +97,14 @@ function getNoteTitle(body) {
     return title;
 }
 
+// decode title
+function decodeTitle(title) {
+    var decodedTitle = LZString.decompressFromBase64(title);
+    if (decodedTitle) title = decodedTitle;
+    else title = 'Untitled';
+    return title;
+}
+
 //generate note web page title
 function generateWebTitle(title) {
     title = !title || title == "Untitled" ? "HackMD - Collaborative notes" : title + " - HackMD";
diff --git a/lib/response.js b/lib/response.js
index cc1020b3..d8f82a9f 100644
--- a/lib/response.js
+++ b/lib/response.js
@@ -56,7 +56,7 @@ var response = {
     showNote: showNote,
     showPublishNote: showPublishNote,
     showPublishSlide: showPublishSlide,
-    showIndex: showIndex,
+	showIndex: showIndex,
     noteActions: noteActions,
     publishNoteActions: publishNoteActions,
     githubActions: githubActions
@@ -75,7 +75,7 @@ function responseError(res, code, detail, msg) {
         code: code,
         detail: detail,
         msg: msg,
-        useCDN: config.usecdn
+		useCDN: config.usecdn
     });
     res.write(content);
     res.end();
@@ -99,16 +99,15 @@ function responseHackMD(res, noteId) {
         if (err) {
             return response.errorNotFound(res);
         }
-        var body = LZString.decompressFromBase64(data.rows[0].content);
+        var notedata = data.rows[0];
+        var body = LZString.decompressFromBase64(notedata.content);
         var meta = null;
         try {
             meta = metaMarked(body).meta;
         } catch(err) {
             //na
         }
-        var title = data.rows[0].title;
-        var decodedTitle = LZString.decompressFromBase64(title);
-        if (decodedTitle) title = decodedTitle;
+        var title = Note.decodeTitle(notedata.title);
         title = Note.generateWebTitle(title);
         var template = config.hackmdpath;
         var options = {
@@ -231,9 +230,7 @@ function showPublishNote(req, res, next) {
                     }
                     var updatetime = notedata.update_time;
                     var text = S(body).escapeHTML().s;
-                    var title = notedata.title;
-                    var decodedTitle = LZString.decompressFromBase64(title);
-                    if (decodedTitle) title = decodedTitle;
+                    var title = Note.decodeTitle(notedata.title);
                     title = Note.generateWebTitle(title);
                     var origin = config.getserverurl();
                     var data = {
@@ -325,13 +322,16 @@ function actionDownload(req, res, noteId) {
         if (err) {
             return response.errorNotFound(res);
         }
-        var body = LZString.decompressFromBase64(data.rows[0].content);
-        var title = Note.getNoteTitle(body);
+        var notedata = data.rows[0];
+        var body = LZString.decompressFromBase64(notedata.content);
+        var title = Note.decodeTitle(notedata.title);
+        var filename = title;
+        filename = encodeURIComponent(filename);
         res.writeHead(200, {
             'Access-Control-Allow-Origin': '*', //allow CORS as API
             'Content-Type': 'text/markdown; charset=UTF-8',
             'Cache-Control': 'private',
-            'Content-disposition': 'attachment; filename=' + title + '.md',
+            'Content-disposition': 'attachment; filename=' + filename + '.md',
             'Content-Length': body.length
         });
         res.end(body);
@@ -343,13 +343,14 @@ function actionPDF(req, res, noteId) {
         if (err) {
             return response.errorNotFound(res);
         }
-        var body = LZString.decompressFromBase64(data.rows[0].content);
+        var notedata = data.rows[0];
+        var body = LZString.decompressFromBase64(notedata.content);
         try {
             body = metaMarked(body).markdown;
         } catch(err) {
             //na
         }
-        var title = Note.getNoteTitle(body);
+        var title = Note.decodeTitle(notedata.title);
 
         if (!fs.existsSync(config.tmppath)) {
             fs.mkdirSync(config.tmppath);
@@ -545,10 +546,7 @@ function githubActionGist(req, res, noteId) {
                     var access_token = body.access_token;
                     if (access_token) {
                         var content = LZString.decompressFromBase64(notedata.content);
-                        var title = notedata.title;
-                        var decodedTitle = LZString.decompressFromBase64(title);
-                        if (decodedTitle) title = decodedTitle;
-                        else title = 'Untitled';
+                        var title = Note.decodeTitle(notedata.title);
                         var filename = title.replace('/', ' ') + '.md';
                         var gist = {
                             "files": {}
@@ -612,9 +610,7 @@ function showPublishSlide(req, res, next) {
                     } catch(err) {
                         //na
                     }
-                    var title = notedata.title;
-                    var decodedTitle = LZString.decompressFromBase64(title);
-                    if (decodedTitle) title = decodedTitle;
+                    var title = Note.decodeTitle(notedata.title);
                     title = Note.generateWebTitle(title);
                     var text = S(body).escapeHTML().s;
                     render(res, title, text);
@@ -640,5 +636,4 @@ var render = function (res, title, markdown) {
     }));
 };
 
-
-module.exports = response;
+module.exports = response;
\ No newline at end of file