"""
gravatar_url from https://en.gravatar.com/site/implement/images/django/
"""
from django import template
from django.conf import settings

import urllib
import hashlib

register = template.Library()

class GravatarUrlNode(template.Node):
    def __init__(self, email):
        self.email = template.Variable(email)

    def render(self, context):
        try:
            email = self.email.resolve(context)
        except template.VariableDoesNotExist:
            return ''

        email_hash = hashlib.md5(email.lower()).hexdigest()
        query_str = urllib.urlencode({'d': 'megaminerai.com/static/img/default_profile_image.png',
                                      's': 200})

        url = "https://secure.gravatar.com/avatar/{0}?{1}"

        return url.format(email_hash, query_str)

@register.tag
def gravatar_url(parser, token):
    try:
        tag_name, email = token.split_contents()

    except ValueError:
        raise template.TemplateSyntaxError, "%r tag requires a single argument" % token.contents.split()[0]

    return GravatarUrlNode(email)

"""
gravatar_url from https://en.gravatar.com/site/implement/images/django/
"""
from django import template
from django.conf import settings

import urllib
import hashlib

register = template.Library()

class GravatarUrlNode(template.Node):
    def __init__(self, email):
        self.email = template.Variable(email)

    def render(self, context):
        try:
            email = self.email.resolve(context)
        except template.VariableDoesNotExist:
            return ''

        email_hash = hashlib.md5(email.lower()).hexdigest()
        query_str = urllib.urlencode({'d': 'megaminerai.com/static/img/default_profile_image.png'}) 

        url = "http://www.gravatar.com/avatar/{0}?{1}"

        return url.format(email_hash, query_str)

@register.tag
def gravatar_url(parser, token):
    try:
        tag_name, email = token.split_contents()

    except ValueError:
        raise template.TemplateSyntaxError, "%r tag requires a single argument" % token.contents.split()[0]

    return GravatarUrlNode(email)

--- 
+++ 
@@ -20,9 +20,10 @@
             return ''
 
         email_hash = hashlib.md5(email.lower()).hexdigest()
-        query_str = urllib.urlencode({'d': 'megaminerai.com/static/img/default_profile_image.png'}) 
+        query_str = urllib.urlencode({'d': 'megaminerai.com/static/img/default_profile_image.png',
+                                      's': 200})
 
-        url = "http://www.gravatar.com/avatar/{0}?{1}"
+        url = "https://secure.gravatar.com/avatar/{0}?{1}"
 
         return url.format(email_hash, query_str)
 
Use secure gravatar and fix gravatar image size

Fixes #106
Fixes #112
