90 lines
2.4 KiB
Python
90 lines
2.4 KiB
Python
"""
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Giphy Tag
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---------
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This implements a Liquid-style Giphy tag for Pelican.
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IMPORTANT: You have to request a production API key from giphy `here <https://api.giphy.com/submit>`.
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For the first runs you could also use the public beta key you can get `here <https://github.com/giphy/GiphyAPI>`.
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Syntax
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------
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{% giphy gif_id ["alt text"|'alt text'] %}
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Example
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-------
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{% giphy aMSJFS6oFX0fC 'ive had some free time' %}
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Output
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------
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<a href="http://giphy.com/gifs/veronica-mars-aMSJFS6oFX0fC"><img src="http://media4.giphy.com/media/aMSJFS6oFX0fC/giphy.gif" alt="ive had some free time"></a>
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"""
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import json
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import re
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try:
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from urllib.request import urlopen
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except ImportError:
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from urllib import urlopen
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from .mdx_liquid_tags import LiquidTags
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SYNTAX = '''{% giphy gif_id ["alt text"|'alt text'] %}'''
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GIPHY = re.compile('''(?P<gif_id>[\S+]+)(?:\s+(['"]{0,1})(?P<alt>.+)(\\2))?''')
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def get_gif(api_key, gif_id):
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'''Returns dict with gif informations from the API.'''
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url = 'http://api.giphy.com/v1/gifs/{}?api_key={}'.format(gif_id, api_key)
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r = urlopen(url)
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return json.loads(r.read().decode('utf-8'))
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def create_html(api_key, attrs):
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'''Returns complete html tag string.'''
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gif = get_gif(api_key, attrs['gif_id'])
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if 'alt' not in attrs.keys():
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attrs['alt'] = 'source: {}'.format(gif['data']['source'])
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html_out = '<a href="{}">'.format(gif['data']['url'])
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html_out += '<img src="{}" alt="{}">'.format(
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gif['data']['images']['original']['url'],
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attrs['alt'])
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html_out += '</a>'
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return html_out
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def main(api_key, markup):
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'''Doing the regex parsing and running the create_html function.'''
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match = GIPHY.search(markup)
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attrs = None
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if match:
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attrs = dict(
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[(key, value.strip())
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for (key, value) in match.groupdict().items() if value])
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else:
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raise ValueError('Error processing input. '
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'Expected syntax: {}'.format(SYNTAX))
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return create_html(api_key, attrs)
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@LiquidTags.register('giphy')
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def giphy(preprocessor, tag, markup):
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api_key = preprocessor.configs.getConfig('GIPHY_API_KEY')
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if api_key is None:
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raise ValueError('Please set GIPHY_API_KEY.')
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return main(api_key, markup)
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# ---------------------------------------------------
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# This import allows image tag to be a Pelican plugin
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from liquid_tags import register
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