add support of markdown in comment create and edit

README.md

@@ -5,6 +5,7 @@ Remark42 is a self-hosted, lightweight, and simple (yet functional) comment engi
 - Social login via Google, Facebook and Github
 - Multi-level nested comments with both tree and plain presentations
 - Import from disqus
+- Markdown support
 - Moderator can remove comments and block users
 - Voting and pinning system
 - Sortable comments

app/rest/server.go

@@ -23,6 +23,7 @@ import (
 	"github.com/umputun/remark/app/rest/common"
 	"github.com/umputun/remark/app/rest/format"
 	"github.com/umputun/remark/app/store"
+	"gopkg.in/russross/blackfriday.v2"
 )
 
 // Server is a rest access server
@@ -139,6 +140,9 @@ func (s *Server) createCommentCtrl(w http.ResponseWriter, r *http.Request) {
 	comment.User = user
 	comment.User.IP = strings.Split(r.RemoteAddr, ":")[0]
 
+	// render markdown
+	comment.Text = string(blackfriday.Run([]byte(comment.Text)))
+
 	log.Printf("[DEBUG] create comment %+v", comment)
 
 	// check if user blocked
@@ -179,6 +183,10 @@ func (s *Server) updateCommentCtrl(w http.ResponseWriter, r *http.Request) {
 	}
 	locator := store.Locator{SiteID: r.URL.Query().Get("site"), URL: r.URL.Query().Get("url")}
 	id := chi.URLParam(r, "id")
+
+	// render markdown
+	edit.Text = string(blackfriday.Run([]byte(edit.Text)))
+
 	log.Printf("[DEBUG] update comment %s, %+v", id, edit)
 
 	var currComment store.Comment

remark.rest

@@ -13,7 +13,7 @@ POST https://demo.remark42.com/api/v1/comment
 Content-Type: application/json
 
 {
-	"text": "comment blah http://radio-t.com",
+	"text": "comment *blah* http://radio-t.com",
 	"user" : {
 		"name": "umputun",
 		"id": "@umputun",

vendor/vendor.json

@@ -124,12 +124,24 @@
 			"revision": "05e8a0eda380579888eb53c394909df027f06991",
 			"revisionTime": "2017-07-13T16:51:06Z"
 		},
+		{
+			"checksumSHA1": "HkNUuhYSk5C2fTMa536jBiORq44=",
+			"path": "github.com/shurcooL/sanitized_anchor_name",
+			"revision": "86672fcb3f950f35f2e675df2240550f2a50762f",
+			"revisionTime": "2017-09-05T02:47:45Z"
+		},
 		{
 			"checksumSHA1": "J+ppEq6nYMKxhB9+c+MD1x9UwSc=",
 			"path": "github.com/stretchr/testify/assert",
 			"revision": "05e8a0eda380579888eb53c394909df027f06991",
 			"revisionTime": "2017-07-13T16:51:06Z"
 		},
+		{
+			"checksumSHA1": "7vs6dSc1PPGBKyzb/SCIyeMJPLQ=",
+			"path": "github.com/stretchr/testify/require",
+			"revision": "2aa2c176b9dab406a6970f6a55f513e8a8c8b18f",
+			"revisionTime": "2017-08-14T20:04:35Z"
+		},
 		{
 			"checksumSHA1": "Y+HGqEkYM15ir+J93MEaHdyFy0c=",
 			"path": "golang.org/x/net/context",
@@ -201,6 +213,12 @@
 			"path": "golang.org/x/sys/unix",
 			"revision": "478fcf54317e52ab69f40bb4c7a1520288d7f7ea",
 			"revisionTime": "2016-12-05T15:46:50Z"
+		},
+		{
+			"checksumSHA1": "WrnWl9sC9qr8Ny0wkfKfnuwIxDM=",
+			"path": "gopkg.in/russross/blackfriday.v2",
+			"revision": "cadec560ec52d93835bf2f15bd794700d3a2473b",
+			"revisionTime": "2017-08-06T17:10:14Z"
 		}
 	],
 	"rootPath": "github.com/umputun/remark"