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196 | import json
from io import BytesIO
import requests
from captcha.image import ImageCaptcha
from django.core.files.base import ContentFile
from django.http import HttpResponse
from django.views.decorators.csrf import csrf_exempt
from PIL import Image
from blog.models import Post
from users.tokens import CaptchaTokenGenerator
from .models import PostImage, RepositoryTitle
# from .github import get_cover
# Create your views here.
@csrf_exempt
def tex(request):
# get expression from request query
expression = request.GET.get('expr').replace('"', '').strip()
if not expression:
return HttpResponse('No expression provided!', status=400)
import requests
image = requests.get('https://latex.codecogs.com/png.image?%5Cinline%20%5Clarge%20%5Cdpi%7B200%7D%5Cbg%7Btransparent%7D' + expression).content
# Image is a transparent GIF with black text. Invert the colors.
image = Image.open(BytesIO(image))
image = image.convert('RGBA')
image = Image.eval(image, lambda x: 255 - x)
# Convert back to gif and return
output = BytesIO()
image.save(output, format='GIF')
return HttpResponse(output.getvalue(), content_type='image/gif')
@csrf_exempt
def post_image(request, size, post_id):
post_id = post_id.replace('.gif', '')
pi = Post.objects.get(id=post_id)
if not pi:
return HttpResponse('No image found!', status=404)
# open image and return
image = pi.post_image
with open(image.path, 'rb') as f:
# resize image
size = int(size)
if size != 0:
# set min and max size
if size < 100:
size = 100
elif size > 1000:
size = 1000
image = Image.open(f)
# resize width to size, compute height
width, height = image.size
height = int(height * (size / width))
width = size
# resize image
image = image.resize((width, height), Image.ANTIALIAS)
output = BytesIO()
image.save(output, format='GIF')
return HttpResponse(output.getvalue(), content_type='image/gif')
else:
return HttpResponse(f.read(), content_type='image/gif')
@csrf_exempt
def get_image(request, post_id, image_name):
# get image from post_id
pi = PostImage.objects.filter(post=Post.objects.get(id=post_id), name=image_name)
if not pi:
return HttpResponse('No image found!', status=404)
# open image and return
image = pi[0].image
with open(image.path, 'rb') as f:
image_file = f.read()
# convert to gif
image = Image.open(BytesIO(image_file))
# check image format
if image.format != 'GIF':
image = image.convert('RGBA')
output = BytesIO()
image.save(output, format='GIF')
image_file = output.getvalue()
return HttpResponse(image_file, content_type='image/gif')
@csrf_exempt
def cover_image(request, repository):
force_reload = request.GET.get('force_reload')
repository = repository.replace('.gif', '')
# check if the image is in RepositoryTitles
try:
if force_reload:
raise Exception('Force reload')
repository_title = RepositoryTitle.objects.get(repository=repository)
image = repository_title.image
except:
# image is not in RepositoryTitles
# get image
url = 'https://socialify.thatcomputerscientist.com/luciferreeves/{}/png?font=KoHo&language=1&language2=1&name=1&theme=Dark&pattern=Solid'.format(repository)
image = requests.get(url).content
# reduce image size to 320x160
image = Image.open(BytesIO(image))
image = image.resize((320, 160), Image.ANTIALIAS)
# remove black background
image = image.convert('RGBA').getdata()
new_data = []
for item in image:
if item[0] == 0 and item[1] == 0 and item[2] == 0:
new_data.append((255, 255, 255, 0))
else:
new_data.append(item)
# Convert back to png and return
output = BytesIO()
image = Image.new('RGBA', (320, 160))
image.putdata(new_data)
image.save(output, format='GIF')
image = output.getvalue()
# save image to RepositoryTitles
image = ContentFile(image, name='{}.png'.format(repository))
repository_title = RepositoryTitle(repository=repository, image=image)
repository_title.save()
return HttpResponse(image, content_type='image/gif')
def upload_image(request):
if request.method == 'POST':
if not request.user.is_authenticated and not request.user.is_staff:
return HttpResponse('Unauthorized', status=401)
if not request.FILES.get('image'):
return HttpResponse('No image provided!', status=400)
if not request.POST.get('id'):
return HttpResponse('No id provided!', status=400)
# upload image to PostImage model
image = request.FILES['image']
post_id = request.POST['id']
# check if image already exists
pi = PostImage.objects.filter(post=Post.objects.get(id=post_id), name=image.name)
if pi:
# image already exists, delete it
pi[0].delete()
# save image to post_id
pi = PostImage(image=image, post=Post.objects.get(id=post_id), name=image.name)
pi.save()
response = {
'url': '/ignis/image/{}/{}'.format(post_id, pi.name)
}
return HttpResponse(json.dumps(response), content_type='application/json')
return HttpResponse('Method not allowed', status=405)
def captcha_image(request, captcha_string):
captcha = CaptchaTokenGenerator().decrypt(captcha_string)
imgcaptcha = ImageCaptcha()
data = imgcaptcha.generate(captcha)
return HttpResponse(data, content_type='image/png')
def socialify(request):
repo = request.GET.get('repo')
theme = request.GET.get('theme')
font = request.GET.get('font')
pattern = request.GET.get('pattern')
name = request.GET.get('name')
description = request.GET.get('description')
language_1 = request.GET.get('language_1')
language_2 = request.GET.get('language_2')
stargazers = request.GET.get('stargazers')
forks = request.GET.get('forks')
issues = request.GET.get('issues')
pulls = request.GET.get('pulls')
url = 'https://socialify.thatcomputerscientist.com/{}/png?description={}&font={}&forks={}&issues={}&language={}&language2={}&name={}&owner=1&pattern={}&pulls={}&stargazers={}&theme={}'.format(repo, description, font, forks, issues, language_1, language_2, name, pattern, pulls, stargazers, theme)
req = requests.get(url)
image = req.content
status = req.status_code
if status == 200:
return HttpResponse(image, content_type='image/png')
else:
with open('static/images/site/utgi.gif', 'rb') as f:
image = f.read()
return HttpResponse(image, content_type='image/gif')
|
