Add support for serving users' avatars through the Libravatar API
This commit is contained in:
parent
6fb289727c
commit
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GPG key ID:
5A5D2D1AFF12EEC5
8 changed files with 152 additions and 37 deletions
1
Pipfile
1
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@ -47,6 +47,7 @@ django-cors-headers = "*"
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pytest-django = "*"
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"argon2-cffi" = "*"
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python-baseconv = "*"
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django-computed-property = "*"
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[dev-packages]
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88
Pipfile.lock
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88
Pipfile.lock
generated
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@ -1,7 +1,7 @@
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{
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"_meta": {
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"hash": {
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"sha256": "a824f0af4df1d0088d5dd66db92329358a5cf0095c71f1cb59f6e60583b912f5"
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"sha256": "0b68c7a2821e8063bc9d7bae759a9d8dd57785e341e6d23d6421ad93310c7d1b"
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},
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"host-environment-markers": {
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"implementation_name": "cpython",
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@ -11,7 +11,7 @@
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"platform_python_implementation": "CPython",
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"platform_release": "17.5.0",
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"platform_system": "Darwin",
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"platform_version": "Darwin Kernel Version 17.5.0: Mon Mar 5 22:58:50 PST 2018; root:xnu-4570.51.1~2/RELEASE_X86_64",
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"platform_version": "Darwin Kernel Version 17.5.0: Tue Mar 13 20:39:15 PDT 2018; root:xnu-4570.51.1~36/RELEASE_X86_64",
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"python_full_version": "3.6.4",
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"python_version": "3.6",
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"sys_platform": "darwin"
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@ -206,6 +206,12 @@
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],
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"version": "==2.2"
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},
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"django-computed-property": {
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"hashes": [
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"sha256:31aa6453a5c504ce196ba9ae3bacbe0557cadf7ae89e25431b90bf206febd3b3"
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],
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"version": "==0.2.1"
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},
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"django-cors-headers": {
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"hashes": [
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"sha256:0e9532628b3aa8806442d4d0b15e56112e6cfbef3735e13401935c98b842a2b4",
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@ -323,36 +329,36 @@
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},
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"sha256:691f2cd97cf026c611df1ea5055755eec7f878f2d4f4330dc8686583de6fc5fd",
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"sha256:1858b1933d483ec5727549d3fe166eeb54229fbd6a9d3d7ea26d2c8a28048058",
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"sha256:0e3cd94c95d30ba9ca3cff40e9b2a14e1a10a4fd8131105b86c6b61648f57e4b",
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"sha256:e2629cdbcad82b83922a3488937632a4983ecc0fed3e5cfbf430d069382eeb9b"
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],
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"version": "==4.2.0"
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"version": "==4.2.1"
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},
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"markdown": {
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"hashes": [
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@ -373,6 +379,14 @@
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],
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"version": "==0.5.0"
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},
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"more-itertools": {
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"hashes": [
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"sha256:11a625025954c20145b37ff6309cd54e39ca94f72f6bb9576d1195db6fa2442e",
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"sha256:0dd8f72eeab0d2c3bd489025bb2f6a1b8342f9b198f6fc37b52d15cfa4531fea",
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"sha256:c9ce7eccdcb901a2c75d326ea134e0886abfbea5f93e91cc95de9507c0816c44"
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],
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"version": "==4.1.0"
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},
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"msgpack-python": {
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"hashes": [
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"sha256:378cc8a6d3545b532dfd149da715abae4fda2a3adb6d74e525d0d5e51f46909b"
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@ -465,10 +479,10 @@
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},
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"py": {
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"hashes": [
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"sha256:8cca5c229d225f8c1e3085be4fcf306090b00850fefad892f9d96c7b6e2f310f",
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"sha256:ca18943e28235417756316bfada6cd96b23ce60dd532642690dcfdaba988a76d"
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"sha256:983f77f3331356039fdd792e9220b7b8ee1aa6bd2b25f567a963ff1de5a64f6a",
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"sha256:29c9fab495d7528e80ba1e343b958684f4ace687327e6f789a94bf3d1915f881"
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],
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"version": "==1.5.2"
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"version": "==1.5.3"
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},
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"pycparser": {
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"hashes": [
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},
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"pytest": {
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"hashes": [
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"sha256:062027955bccbc04d2fcd5d79690947e018ba31abe4c90b2c6721abec734261b",
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"sha256:117bad36c1a787e1a8a659df35de53ba05f9f3398fb9e4ac17e80ad5903eb8c5"
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"sha256:6266f87ab64692112e5477eba395cfedda53b1933ccd29478e671e73b420c19c",
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"sha256:fae491d1874f199537fd5872b5e1f0e74a009b979df9d53d1553fd03da1703e1"
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],
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"version": "==3.4.2"
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"version": "==3.5.0"
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},
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"pytest-django": {
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"hashes": [
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'analytical',
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'annoying',
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'compressor',
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'computed_property',
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'corsheaders',
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'debug_toolbar',
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'django_activeurl',
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urlpatterns = [
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url('', include('home.urls')),
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url('', include('entries.urls')),
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url('', include('users.urls')),
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url('^.well-known/', include('wellknowns.urls')),
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url('^admin/', otp_admin_site.urls),
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url('^auth/', include('lemonauth.urls')),
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24
users/migrations/0013_auto_20180323_1200.py
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24
users/migrations/0013_auto_20180323_1200.py
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# Generated by Django 2.0.3 on 2018-03-23 01:00
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import computed_property.fields
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from django.db import migrations, models
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class Migration(migrations.Migration):
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dependencies = [
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('users', '0012_auto_20180129_1614'),
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]
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operations = [
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migrations.AddField(
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model_name='user',
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name='email_md5',
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field=computed_property.fields.ComputedCharField(compute_from='calc_email_md5', default='', editable=False, max_length=32, unique=True),
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),
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migrations.AddField(
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model_name='user',
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name='email_sha256',
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field=computed_property.fields.ComputedCharField(compute_from='calc_email_sha256', default='', editable=False, max_length=64, unique=True),
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),
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]
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from computed_property import ComputedCharField
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from django.db import models
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from django.contrib.auth.models import AbstractUser, UserManager as DjangoUserManager
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from django.contrib.sites.models import Site as DjangoSite
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from django.utils.functional import cached_property
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from hashlib import md5, sha256
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from meta.models import ModelMeta
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from urllib.parse import urljoin
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from lemoncurry import utils
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# This is gonna need to change if I ever decide to add multiple-user support ;)
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url = '/'
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email_md5 = ComputedCharField(
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compute_from='calc_email_md5', max_length=32, unique=True
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)
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email_sha256 = ComputedCharField(
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compute_from='calc_email_sha256', max_length=64, unique=True
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)
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@property
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def calc_email_md5(self):
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return md5(self.email.lower().encode('utf-8')).hexdigest()
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@property
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def calc_email_sha256(self):
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return sha256(self.email.lower().encode('utf-8')).hexdigest()
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@property
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def name(self):
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return '{0} {1}'.format(self.first_name, self.last_name)
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8
users/urls.py
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8
users/urls.py
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from django.conf.urls import url
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from .views import libravatar
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app_name = 'users'
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urlpatterns = (
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url('^avatar/(?P<hash>[a-z0-9]+)$', libravatar, name='libravatar'),
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)
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49
users/views.py
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49
users/views.py
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from django.http import HttpResponse, HttpResponseRedirect
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from PIL import Image
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from lemoncurry import utils
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from .models import User
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def try_libravatar_org(hash, get):
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url = 'https://seccdn.libravatar.org/avatar/' + hash
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if get:
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url += '?' + get.urlencode()
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return HttpResponseRedirect(url)
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def libravatar(request, hash):
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g = request.GET
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size = g.get('s', g.get('size', 80))
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try:
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size = int(size)
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except ValueError:
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return utils.bad_req('size parameter must be an integer')
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if not 1 <= size <= 128:
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return utils.bad_req('size parameter must be between 1 and 128')
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if len(hash) == 32:
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where = {'email_md5': hash}
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elif len(hash) == 64:
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where = {'email_sha256': hash}
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else:
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return utils.bad_req('hash must be either md5 or sha256')
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# If the user doesn't exist or lacks an avatar, see if libravatar.org has
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# one for them - libravatar.org falls back to Gravatar when possible (only
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# for MD5 hashes, since Gravatar doesn't support SHA-256), so this ensures
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# all the most likely places are checked.
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try:
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user = User.objects.get(**where)
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except User.DoesNotExist:
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return try_libravatar_org(hash, g)
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if not user.avatar:
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return try_libravatar_org(hash, g)
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im = Image.open(user.avatar)
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im_resized = im.resize((size, size))
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response = HttpResponse(content_type='image/'+im.format.lower())
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im_resized.save(response, im.format)
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return response
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