From 6f187903522dc629c4c4f3171775f83021dcc4e5 Mon Sep 17 00:00:00 2001
From: Wim <wim@42.be>
Date: Fri, 3 Nov 2017 23:10:16 +0100
Subject: Add support to upload files to slack, from bridges with private urls
 like slack/mattermost/telegram. (slack)

---
 bridge/slack/slack.go | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'bridge')

diff --git a/bridge/slack/slack.go b/bridge/slack/slack.go
index 11a84a12..74003753 100644
--- a/bridge/slack/slack.go
+++ b/bridge/slack/slack.go
@@ -187,6 +187,25 @@ func (b *Bslack) Send(msg config.Message) (string, error) {
 		b.sc.UpdateMessage(schannel.ID, ts[1], message)
 		return "", nil
 	}
+
+	if msg.Extra != nil {
+		// check if we have files to upload (from slack, telegram or mattermost)
+		if len(msg.Extra["file"]) > 0 {
+			var err error
+			for _, f := range msg.Extra["file"] {
+				fi := f.(config.FileInfo)
+				_, err = b.sc.UploadFile(slack.FileUploadParameters{
+					Reader:   bytes.NewReader(*fi.Data),
+					Filename: fi.Name,
+					Channels: []string{schannel.ID},
+				})
+				if err != nil {
+					flog.Errorf("uploadfile %#v", err)
+				}
+			}
+		}
+	}
+
 	_, id, err := b.sc.PostMessage(schannel.ID, message, np)
 	if err != nil {
 		return "", err
-- 
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