From 96c0328423d0785c93afa52f7780543e80face19 Mon Sep 17 00:00:00 2001
From: Andreas Bielawski <brawl98@outlook.com>
Date: Sat, 25 Jun 2016 17:25:50 +0200
Subject: [PATCH] =?UTF-8?q?-=20NEU:=20leave=5Fgroup-Plugin=20-=20Bot=20ver?=
 =?UTF-8?q?l=C3=A4sst=20Gruppe,=20wenn=20der=20Administrator=20des=20Bots?=
 =?UTF-8?q?=20nicht=20Mitglied=20ist=20und=20meldet=20dies=20auch=20an=20d?=
 =?UTF-8?q?en=20Administrator=20-=20Facebook:=20Fotos=20wurden=20nicht=20g?=
 =?UTF-8?q?esendet,=20wenn=20Parameter=20angeh=C3=A4ngt=20wurde?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 otouto/plugins/facebook.lua    |  2 +-
 otouto/plugins/leave_group.lua | 52 ++++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+), 1 deletion(-)
 create mode 100644 otouto/plugins/leave_group.lua

diff --git a/otouto/plugins/facebook.lua b/otouto/plugins/facebook.lua
index cadd012..61a098d 100644
--- a/otouto/plugins/facebook.lua
+++ b/otouto/plugins/facebook.lua
@@ -159,7 +159,7 @@ function facebook:action(msg, config, matches)
     local text, image_url = facebook:send_facebook_photo(photo_id, receiver)
 	if not image_url then return end
 	utilities.send_typing(self, msg.chat.id, 'upload_photo')
-	local file = download_to_file(image_url)
+	local file = download_to_file(image_url, 'photo.jpg')
 	utilities.send_reply(self, msg, text, true)
 	utilities.send_photo(self, msg.chat.id, file, nil, msg.message_id)
 	return
diff --git a/otouto/plugins/leave_group.lua b/otouto/plugins/leave_group.lua
new file mode 100644
index 0000000..657b636
--- /dev/null
+++ b/otouto/plugins/leave_group.lua
@@ -0,0 +1,52 @@
+local leave_group = {}
+
+local utilities = require('otouto.utilities')
+local bindings = require('otouto.bindings')
+
+leave_group.triggers = {
+  '/nil'
+}
+
+local report_to_admin = true -- set to false to not be notified, when Bot leaves groups without you
+
+function leave_group:check_for_admin(msg, self, config)
+  local result = bindings.request(self, 'getChatMember', {
+		chat_id = msg.chat.id,
+		user_id = config.admin
+	} )
+  if not result.ok then
+    print('Konnte nicht prüfen, ob Admin in Gruppe ist! Verlasse sie sicherheitshalber...')
+	return false
+  end
+  if result.result.status ~= "member" then
+    return false
+  else
+    return true
+  end
+end
+
+function leave_group:pre_process(msg, self, config)
+  if msg.group_chat_created or msg.new_chat_member then
+    local admin_in_group = leave_group:check_for_admin(msg, self, config)
+	if not admin_in_group then
+	  print('Admin ist nicht in der Gruppe, verlasse sie deshalb...')
+	  utilities.send_reply(self, msg, 'Dieser Bot wurde in eine fremde Gruppe hinzugefügt. Dies wird gemeldet!\nThis bot was added to foreign group. This incident will be reported!')
+      local result = bindings.request(self, 'leaveChat', {
+		chat_id = msg.chat.id
+	  } )
+	  local chat_name = msg.chat.title
+	  local chat_id = msg.chat.id
+	  local from = msg.from.name
+	  local from_id = msg.from.id
+	  if report_to_admin then
+	    utilities.send_message(self, config.admin, '#WARNUNG: Bot wurde in fremde Gruppe hinzugefügt:\nGruppenname: '..chat_name..' ('..chat_id..')\nHinzugefügt von: '..from..' ('..from_id..')')
+	  end
+	end
+  end
+  return msg
+end
+
+function leave_group:action(msg)
+end
+
+return leave_group