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# coding: utf-8
# This file is a part of VK4XMPP transport
# © simpleApps, 2015.
import base64
from tempfile import mktemp
from cStringIO import StringIO
sticker_url = re.compile(r"^Sticker\:\s(http[s]?\:\/\/[a-zA-Z0-9\._\/]+)$")
try:
from PIL import Image
except ImportError:
logger.warning("sticker: not enabling RGB conversion because PIL is not installed")
ENABLE_RGB_CONVERSION = False
if not isdef("STICKER_SIZE"):
STICKER_SIZE = "128"
GLOBAL_USER_SETTINGS["send_stickers"] = {"label": "Send stickers with XHTML-IM",
"desc": "If set, transport would send images for stickers instead of URLs (requires client-side support)", "value": 0}
def convertImage(data):
outfile = mktemp()
io = StringIO(data)
image = Image.open(io)
image.convert("RGB").save(outfile, "JPEG", quality=RGB_CONVERSION_QUALITY)
data = rFile(outfile)
try:
os.remove(outfile)
except Exception:
crashLog("convertImage")
return data
def sendSticker(msg, destination, source):
body = msg.getBody()
if body:
if msg.getType() == "groupchat":
user = Chat.getUserObject(destination)
else:
user = Users.get(destination)
if user and user.settings.send_stickers:
url = sticker_url.search(body)
if url:
url = url.group(1).replace("256b", STICKER_SIZE)
data = urllib.urlopen(url).read()
if data:
mime = "png"
if isdef("ENABLE_RGB_CONVERSION") and ENABLE_RGB_CONVERSION:
data = convertImage(data)
mime = "jpeg"
data = base64.b64encode(data)
xhtml = msg.setTag("html", namespace=xmpp.NS_XHTML_IM)
xbody = xhtml.setTag("body", namespace="http://www.w3.org/1999/xhtml")
xbody.setTag("br")
xbody.setTag("img", {"src": "data:image/%s;base64,%s" % (mime, data), "alt": "img"})
def initStickerSender():
if xmpp.NS_GROUPCHAT in TransportFeatures:
registerHandler("msg03g", sendSticker)
registerHandler("evt01", initStickerSender)
registerHandler("msg03", sendSticker)
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