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