Created
March 9, 2012 05:18
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Gravatar Django template tag
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| import urllib, hashlib | |
| from django import template | |
| from django.conf import settings | |
| from django.contrib.staticfiles.storage import staticfiles_storage | |
| # To use this template tag: | |
| # 1. Add it to the templatetags/ directory of your Django app. | |
| # 2. Then load and use it in the template like so: | |
| # | |
| # {% load gravatar %} | |
| # {% gravatar_url 'foo@bar.com' 96 %} | |
| # | |
| # 3. Configure settings.py: | |
| # | |
| # GRAVATAR_DEFAULT = 'mm' # Mystery Man. | |
| # GRAVATAR_RATING = 'pg' # PG rated only. | |
| # GRAVATAR_SIZE = 40 # Size to use if not specified. | |
| register = template.Library() | |
| @register.tag | |
| def gravatar_url(parser, token): | |
| try: | |
| token_parts = token.split_contents() | |
| args = token_parts[1:] | |
| except ValueError, IndexError: | |
| raise template.TemplateSyntaxError, "%r tag requires at least one argument" % token.contents.split()[0] | |
| return GravatarUrlNode(*args) | |
| class GravatarUrlNode(template.Node): | |
| def __init__(self, email, size=None): | |
| self.email = template.Variable(email) | |
| self.size = size | |
| def render(self, context): | |
| try: | |
| email = self.email.resolve(context) | |
| request = context.get('request') | |
| except template.VariableDoesNotExist: | |
| return '' | |
| except KeyError: | |
| raise Exception('gravatar_url requires `RequestContext` or `request` in template context') | |
| # http://en.gravatar.com/site/implement/images/ | |
| params = dict( | |
| s = self.size or getattr(settings, 'GRAVATAR_SIZE', 40), | |
| r = getattr(settings, 'GRAVATAR_RATING', 'pg'), | |
| ) | |
| default = getattr(settings, 'GRAVATAR_DEFAULT', None) | |
| if default: | |
| if default not in ('404', 'mm', 'identicon', 'monsterid', 'wavatar', 'retro', ): | |
| default = staticfiles_storage.url(default) | |
| params['d'] = default | |
| proto = 'http' | |
| host = 'www.gravatar.com' | |
| if request.is_secure(): | |
| proto += 's' | |
| host = 'secure.gravatar.com' | |
| gravatar_url = proto + "://" + host + "/avatar/" + hashlib.md5(email.lower()).hexdigest() + "?" | |
| gravatar_url += urllib.urlencode(params) | |
| return gravatar_url |
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