Merge branch 'master' into frontend-next

lib/models/note.js

@@ -236,33 +236,17 @@ module.exports = function (sequelize, DataTypes) {
                 });
             },
             parseNoteInfo: function (body) {
-                var meta = null;
-                try {
-                    var obj = metaMarked(body);
-                    body = obj.markdown;
-                    meta = obj.meta;
-                } catch (err) {
-                    //na
-                }
-                if (!meta) meta = {};
-                var $ = cheerio.load(md.render(body));
+                var parsed = Note.extractMeta(body);
+                var $ = cheerio.load(md.render(parsed.markdown));
                 return {
-                    title: Note.extractNoteTitle(meta, $),
-                    tags: Note.extractNoteTags(meta, $)
+                    title: Note.extractNoteTitle(parsed.meta, $),
+                    tags: Note.extractNoteTags(parsed.meta, $)
                 };
             },
             parseNoteTitle: function (body) {
-                var meta = null;
-                try {
-                    var obj = metaMarked(body);
-                    body = obj.markdown;
-                    meta = obj.meta;
-                } catch (err) {
-                    //na
-                }
-                if (!meta) meta = {};
-                var $ = cheerio.load(md.render(body));
-                return Note.extractNoteTitle(meta, $);
+                var parsed = Note.extractMeta(body);
+                var $ = cheerio.load(md.render(parsed.markdown));
+                return Note.extractNoteTitle(parsed.meta, $);
             },
             extractNoteTitle: function (meta, $) {
                 var title = "";
@@ -320,6 +304,19 @@ module.exports = function (sequelize, DataTypes) {
                 }
                 return tags;
             },
+            extractMeta: function (content) {
+                try {
+                    var obj = metaMarked(content);
+                    if (!obj.markdown) obj.markdown = "";
+                    if (!obj.meta) obj.meta = {};
+                } catch (err) {
+                    var obj = {
+                        markdown: content,
+                        meta: {}
+                    };
+                }
+                return obj;
+            },
             parseMeta: function (meta) {
                 var _meta = {};
                 if (meta) {

lib/response.js

@@ -6,7 +6,6 @@ var markdownpdf = require("markdown-pdf");
 var LZString = require('lz-string');
 var S = require('string');
 var shortId = require('shortid');
-var metaMarked = require('meta-marked');
 var querystring = require('querystring');
 var request = require('request');
 var moment = require('moment');
@@ -76,13 +75,8 @@ function showIndex(req, res, next) {
 
 function responseHackMD(res, note) {
     var body = note.content;
-    var meta = null;
-    try {
-        meta = models.Note.parseMeta(metaMarked(body).meta);
-    } catch(err) {
-        //na
-    }
-    if (!meta) meta = {};
+    var extracted = models.Note.extractMeta(body);
+    var meta = models.Note.parseMeta(extracted.meta);
     var title = models.Note.decodeTitle(note.title);
     title = models.Note.generateWebTitle(meta.title || title);
     res.set({
@@ -192,16 +186,9 @@ function showPublishNote(req, res, next) {
                 return response.errorNotFound(res);
             }
             var body = note.content;
-            var meta = null;
-            var markdown = null;
-            try {
-                var obj = metaMarked(body);
-                markdown = obj.markdown;
-                meta = models.Note.parseMeta(obj.meta);
-            } catch(err) {
-                //na
-            }
-            if (!meta) meta = {};
+            var extracted = models.Note.extractMeta(body);
+            markdown = extracted.markdown;
+            meta = models.Note.parseMeta(extracted.meta);
             var createtime = note.createdAt;
             var updatetime = note.lastchangeAt;
             var title = models.Note.decodeTitle(note.title);
@@ -266,16 +253,9 @@ function actionDownload(req, res, note) {
 
 function actionInfo(req, res, note) {
     var body = note.content;
-    var meta = null;
-    var markdown = null;
-    try {
-        var obj = metaMarked(body);
-        markdown = obj.markdown;
-        meta = models.Note.parseMeta(obj.meta);
-    } catch(err) {
-        //na
-    }
-    if (!meta) meta = {};
+    var extracted = models.Note.extractMeta(body);
+    var markdown = extracted.markdown;
+    var meta = models.Note.parseMeta(extracted.meta);
     var createtime = note.createdAt;
     var updatetime = note.lastchangeAt;
     var title = models.Note.decodeTitle(note.title);
@@ -298,18 +278,14 @@ function actionInfo(req, res, note) {
 
 function actionPDF(req, res, note) {
     var body = note.content;
-    try {
-        body = metaMarked(body).markdown;
-    } catch(err) {
-        //na
-    }
+    var extracted = models.Note.extractMeta(body);
     var title = models.Note.decodeTitle(note.title);
 
     if (!fs.existsSync(config.tmppath)) {
         fs.mkdirSync(config.tmppath);
     }
     var path = config.tmppath + '/' + Date.now() + '.pdf';
-    markdownpdf().from.string(body).to(path, function () {
+    markdownpdf().from.string(extracted.markdown).to(path, function () {
         var stream = fs.createReadStream(path);
         var filename = title;
         // Be careful of special characters
@@ -580,16 +556,9 @@ function showPublishSlide(req, res, next) {
                 return response.errorNotFound(res);
             }
             var body = note.content;
-            var meta = null;
-            var markdown = null;
-            try {
-                var obj = metaMarked(body);
-                markdown = obj.markdown;
-                meta = models.Note.parseMeta(obj.meta);
-            } catch(err) {
-                //na
-            }
-            if (!meta) meta = {};
+            var extracted = models.Note.extractMeta(body);
+            markdown = extracted.markdown;
+            meta = models.Note.parseMeta(extracted.meta);
             var createtime = note.createdAt;
             var updatetime = note.lastchangeAt;
             var title = models.Note.decodeTitle(note.title);
@@ -603,7 +572,7 @@ function showPublishSlide(req, res, next) {
                 updatetime: updatetime,
                 url: origin,
                 body: markdown,
-                meta: JSON.stringify(obj.meta || {}),
+                meta: JSON.stringify(extracted.meta),
                 useCDN: config.usecdn,
                 owner: note.owner ? note.owner.id : null,
                 ownerprofile: note.owner ? models.User.getProfile(note.owner) : null,

public/js/extra.js

@@ -13,6 +13,7 @@ import { saveAs } from 'file-saver';
 
 require('./common');
 require('../vendor/md-toc');
+var Viz = require("viz.js");
 
 //auto update last change
 window.createtime = null;
@@ -314,6 +315,7 @@ export function finishView(view) {
             svg[0].setAttribute('preserveAspectRatio', 'xMidYMid meet');
         } catch (err) {
             $value.unwrap();
+            $value.parent().append('<div class="alert alert-warning">' + err + '</div>');
             console.warn(err);
         }
     });
@@ -337,27 +339,37 @@ export function finishView(view) {
             $value.children().unwrap().unwrap();
         } catch (err) {
             $value.unwrap();
+            $value.parent().append('<div class="alert alert-warning">' + err + '</div>');
             console.warn(err);
         }
     });
     //graphviz
-    const Viz = require("viz.js");
-    const graphvizs = view.find("div.graphviz.raw").removeClass("raw");
-    graphvizs.each((key, value) => {
-        try {
+    var graphvizs = view.find("div.graphviz.raw").removeClass("raw");
+    function parseGraphviz(key, value) {
         var $value = $(value);
-            const $ele = $(value).parent().parent();
+        var $ele = $(value).parent().parent();
 
-            const graphviz = Viz($value.text());
+        var graphviz = Viz($value.text());
         if (!graphviz) throw Error('viz.js output empty graph');
         $value.html(graphviz);
 
         $ele.addClass('graphviz');
         $value.children().unwrap().unwrap();
+    }
+    graphvizs.each(function (key, value) {
+        try {
+            parseGraphviz(key, value);
         } catch (err) {
+            // workaround for graphviz not recover from error
+            try {
+                parseGraphviz(key, value);
+            } catch (err) {
+                var $value = $(value);
                 $value.unwrap();
+                $value.parent().append('<div class="alert alert-warning">' + err + '</div>');
                 console.warn(err);
             }
+        }
     });
     //mermaid
     const mermaids = view.find("div.mermaid.raw").removeClass("raw");
@@ -376,11 +388,11 @@ export function finishView(view) {
                 $ele.html($value.text());
                 mermaid.init(undefined, $ele);
             } else {
-                $value.unwrap();
-                console.warn(mermaidError);
+                throw new Error(mermaidError);
             }
         } catch (err) {
             $value.unwrap();
+            $value.parent().append('<div class="alert alert-warning">' + err + '</div>');
             console.warn(err);
         }
     });
@@ -539,6 +551,16 @@ export function postProcess(code) {
 			});
 		}
 	}
+    // show yaml meta paring error
+    if (md.metaError) {
+        var warning = result.find('div#meta-error');
+        if (warning && warning.length > 0) {
+            warning.text(md.metaError)
+        } else {
+            warning = $('<div id="meta-error" class="alert alert-warning">' + md.metaError + '</div>')
+            result.prepend(warning);
+        }
+    }
     return result;
 }
 window.postProcess = postProcess;
@@ -1103,7 +1125,9 @@ function meta(state, start, end, silent) {
 
     try {
         md.meta = jsyaml.safeLoad(data.join('\n')) || {};
+        delete md.metaError;
     } catch(err) {
+        md.metaError = err;
         console.warn(err);
         return false;
     }

public/vendor/ot/codemirror-adapter.js

@@ -328,7 +328,7 @@ ot.CodeMirrorAdapter = (function (global) {
         return {
             clear: function () {
                 for (var i = 0; i < selectionObjects.length; i++) {
-                    selectionObjects[i].clear();
+                    if (selectionObjects[i]) selectionObjects[i].clear();
                 }
             }
         };