def get(self, request, *args, **kwargs):
if not HAS_PDF:
raise Http404()
language = kwargs.get('language', self.request.LANGUAGE_CODE)
if language not in self.languages:
raise Http404()
problem = self.get_object()
try:
trans = problem.translations.get(language=language)
except ProblemTranslation.DoesNotExist:
trans = None
error_cache = os.path.join(settings.PROBLEM_PDF_CACHE, '%s.%s.log' % (problem.code, language))
cache = os.path.join(settings.PROBLEM_PDF_CACHE, '%s.%s.pdf' % (problem.code, language))
if os.path.exists(error_cache):
with open(error_cache) as f:
return HttpResponse(f.read(), status=500, content_type='text/plain')
if not os.path.exists(cache):
self.logger.info('Rendering: %s.%s.pdf', problem.code, language)
with DefaultPdfMaker() as maker, translation.override(language):
problem_name = problem.name if trans is None else trans.name
maker.html = get_template('problem/raw.html').render({
'problem': problem,
'problem_name': problem_name,
'description': problem.description if trans is None else trans.description,
'url': request.build_absolute_uri(),
'math_engine': maker.math_engine,
}).replace('"//', '"https://').replace("'//", "'https://")
maker.title = problem_name
assets = ['style.css', 'pygment-github.css']
if maker.math_engine == 'jax':
assets.append('mathjax_config.js')
for file in assets:
maker.load(file, os.path.join(settings.DMOJ_RESOURCES, file))
maker.make()
if not maker.success:
with open(error_cache, 'wb') as f:
f.write(maker.log)
self.logger.error('Failed to render PDF for %s', problem.code)
return HttpResponse(maker.log, status=500, content_type='text/plain')
shutil.move(maker.pdffile, cache)
response = HttpResponse()
if hasattr(settings, 'PROBLEM_PDF_INTERNAL') and request.META.get('SERVER_SOFTWARE', '').startswith('nginx/'):
response['X-Accel-Redirect'] = '%s/%s.%s.pdf' % (settings.PROBLEM_PDF_INTERNAL, problem.code, language)
else:
with open(cache, 'rb') as f:
response.content = f.read()
response['Content-Type'] = 'application/pdf'
response['Content-Disposition'] = 'inline; filename=%s.%s.pdf' % (problem.code, language)
return response
def handle(self, *args, **options):
try:
problem = Problem.objects.get(code=options['code'])
except Problem.DoesNotExist:
print('Bad problem code')
return
try:
trans = problem.translations.get(language=options['language'])
except ProblemTranslation.DoesNotExist:
trans = None
directory = options['directory']
with DefaultPdfMaker() as maker, \
translation.override(options['language']):
problem_name = problem.name if trans is None else trans.name
maker.html = get_template('problem/raw.html').render({
'problem':
problem,
'problem_name':
problem_name,
'description':
problem.description if trans is None else trans.description,
'url':
'',
}).replace('"//', '"https://').replace("'//", "'https://")
maker.title = problem_name
maker.load('style.css',
os.path.join(settings.STATIC_ROOT, 'css', 'style.css'))
maker.load(
'pygment-github.css',
os.path.join(settings.STATIC_ROOT, 'css',
'pygment-github.css'))
maker.load(
'mathjax_config.js',
os.path.join(settings.STATIC_ROOT, 'js', 'mathjax_config.js'))
maker.load(
'mathjax_config.MathJax',
os.path.join(settings.STATIC_ROOT, 'libs', 'mathjax',
'MathJax.js'))
maker.make(debug=True)
if not maker.success:
print(maker.log, file=sys.stderr)
elif directory is None:
shutil.move(maker.pdffile, problem.code + '.pdf')