Fixing issues with files trasitioning to relative paths

api/post.go

@@ -160,39 +160,6 @@ func CreatePost(c *Context, post *model.Post, doUpdateLastViewed bool) (*model.P
 
 	post.UserId = c.Session.UserId
 
-	if len(post.Filenames) > 0 {
-		doRemove := false
-		for i := len(post.Filenames) - 1; i >= 0; i-- {
-			path := post.Filenames[i]
-
-			doRemove = false
-			if model.UrlRegex.MatchString(path) {
-				continue
-			} else if model.PartialUrlRegex.MatchString(path) {
-				matches := model.PartialUrlRegex.FindAllStringSubmatch(path, -1)
-				if len(matches) == 0 || len(matches[0]) < 5 {
-					doRemove = true
-				}
-
-				channelId := matches[0][2]
-				if channelId != post.ChannelId {
-					doRemove = true
-				}
-
-				userId := matches[0][3]
-				if userId != post.UserId {
-					doRemove = true
-				}
-			} else {
-				doRemove = true
-			}
-			if doRemove {
-				l4g.Error("Bad filename discarded, filename=%v", path)
-				post.Filenames = append(post.Filenames[:i], post.Filenames[i+1:]...)
-			}
-		}
-	}
-
 	var rpost *model.Post
 	if result := <-Srv.Store.Post().Save(post); result.Err != nil {
 		return nil, result.Err

api/post_test.go

@@ -37,7 +37,7 @@ func TestCreatePost(t *testing.T) {
 	channel2 := &model.Channel{DisplayName: "Test API Name", Name: "a" + model.NewId() + "a", Type: model.CHANNEL_OPEN, TeamId: team.Id}
 	channel2 = Client.Must(Client.CreateChannel(channel2)).Data.(*model.Channel)
 
-	filenames := []string{"/api/v1/files/get/12345678901234567890123456/12345678901234567890123456/test.png", "/api/v1/files/get/" + channel1.Id + "/" + user1.Id + "/test.png", "www.mattermost.com/fake/url", "junk"}
+	filenames := []string{"/api/v1/files/get/12345678901234567890123456/12345678901234567890123456/test.png", "/api/v1/files/get/" + channel1.Id + "/" + user1.Id + "/test.png"}
 
 	post1 := &model.Post{ChannelId: channel1.Id, Message: "#hashtag a" + model.NewId() + "a", Filenames: filenames}
 	rpost1, err := Client.CreatePost(post1)

web/react/components/file_preview.jsx

@@ -19,6 +19,10 @@ module.exports = React.createClass({
             var filenameSplit = filename.split('.');
             var ext = filenameSplit[filenameSplit.length-1];
             var type = utils.getFileType(ext);
+            // This is a temporary patch to fix issue with old files using absolute paths
+            if (filename.indexOf("/api/v1/files/get") != -1) {
+                filename = filename.split("/api/v1/files/get")[1];
+            }
             filename = window.location.origin + "/api/v1/files/get" + filename;
 
             if (type === "image") {