modules/WSConvertWebp.py

   1 # Mattermost Bot module.
   2 #  Copyright (c) 2016-2021 by Someone <someone@somenet.org> (aka. Jan Vales <jan@jvales.net>)
   3 #  published under MIT-License
   4
   5 import json
   6 import tempfile
   7 from PIL import Image
   8
   9
  10 from AbstractWSHandler import *
  11 class WSConvertWebp(AbstractWSHandler):
  12     NAME = "convertwebp"
  13
  14     def on_WS_EVENT(self, data):
  15         post = json.loads(data["data"]["post"])
  16
  17         if not "metadata" in post or not "files" in post["metadata"]:
  18             return False
  19
  20         with tempfile.TemporaryDirectory() as tmpdirname:
  21             tempfilenames = []
  22             for mmfile in post["metadata"]["files"]:
  23                 if mmfile["mime_type"] == "image/webp":
  24                     res = self.bot.api.get_file(mmfile["id"])
  25                     open(tmpdirname+"/"+mmfile["id"]+".webp", 'wb').write(res.content)
  26                     image = Image.open(tmpdirname+"/"+mmfile["id"]+".webp").convert("RGB")
  27                     image.save(tmpdirname+"/"+mmfile["id"]+".png", "png")
  28                     tempfilenames.append(tmpdirname+"/"+mmfile["id"]+".png")
  29
  30             if tempfilenames:
  31                 root_id = post["id"]
  32                 if post["root_id"] != "":
  33                     root_id = post["root_id"]
  34                 self.bot.api.create_post(post['channel_id'], "Let me convert that for you", props={"from_webhook":"true"}, filepaths=tempfilenames, root_id=root_id)
  35                 return True