A Python content management system designed for kirsle.net featuring a blog, comments and photo albums. https://rophako.kirsle.net/
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# -*- coding: utf-8 -*-
"""Emoticon models."""
from flask import request
import os
import codecs
import json
import re
from rophako.settings import Config
from rophako.log import logger
_cache = {}
def load_theme():
"""Pre-load and cache the emoticon theme. This happens on startup."""
theme = Config.emoticons.theme
global _cache
# Cached?
if _cache:
return _cache
# Only if the theme file exists.
settings = os.path.join(Config.emoticons.root_private, theme, "emoticons.json")
if not os.path.isfile(settings):
logger.error("Failed to load smiley theme {}: not found!")
# Try the default (tango).
theme = "tango"
settings = os.path.join(Config.emoticons.root_private, theme, "emoticons.json")
if os.path.isfile(settings):
logger.info("Falling back to default theme: tango")
else:
# Give up.
return {}
# Read it.
fh = codecs.open(settings, "r", "utf-8")
text = fh.read()
fh.close()
try:
data = json.loads(text)
except Exception as e:
logger.error("Couldn't load JSON from emoticon file: {}".format(e))
data = {}
# Cache and return it.
_cache = data
return data
def render(message):
"""Render the emoticons into a message.
The message should already be stripped of HTML and otherwise be 'safe' to
embed on a web page. The output of this function includes `<img>` tags and
these won't work otherwise."""
# Get the smileys config.
smileys = load_theme()
# Process all smileys.
for img in sorted(smileys["map"]):
for trigger in smileys["map"][img]:
if trigger in message:
# Substitute it.
sub = """<img src="{url}" class="rophako-emoticon" alt="{trigger}" title="{trigger}">""".format(
url="{}/static/smileys/{}/{}".format(request.url_root.strip("/"), Config.emoticons.theme, img),
trigger=trigger,
)
pattern = r'([^A-Za-z0-9:\-]|^){}([^A-Za-z0-9:\-]|$)'.format(re.escape(trigger))
result = r'\1{}\2'.format(sub)
message = re.sub(pattern, result, message)
return message