def read(self, request, vendor, name, version):
resource = get_object_or_404(CatalogueResource.objects.select_related('widget__xhtml'), vendor=vendor, short_name=name, version=version)
# For now, all widgets are freely accessible/distributable
#if not resource.is_available_for(request.user):
# return build_error_response(request, 403, "Forbidden")
if resource.resource_type() != 'widget':
raise Http404()
mode = request.GET.get('mode', 'classic')
widget_info = json.loads(resource.json_description)
# check if the xhtml code has been cached
if widget_info['contents']['cacheable'] is True:
cache_key = resource.widget.xhtml.get_cache_key(get_current_domain(request), mode)
cache_entry = cache.get(cache_key)
if cache_entry is not None:
response = HttpResponse(cache_entry['code'], content_type=cache_entry['content_type'])
patch_cache_headers(response, cache_entry['timestamp'], cache_entry['timeout'])
return response
# process xhtml
xhtml = resource.widget.xhtml
content_type = widget_info['contents'].get('contenttype', 'text/html')
charset = widget_info['contents'].get('charset', 'utf-8')
force_base = False
base_url = xhtml.url
if not base_url.startswith(('http://', 'https://')):
# Newer versions of Django urlencode urls created using reverse
# Fix double encoding
base_url = urlunquote(base_url)
base_url = get_absolute_reverse_url('wirecloud.showcase_media', args=(base_url.split('/', 4)), request=request)
force_base = True
code = xhtml.code
if not xhtml.cacheable or code == '':
try:
if xhtml.url.startswith(('http://', 'https://')):
code = download_http_content(urljoin(base_url, xhtml.url), user=request.user)
else:
code = download_local_file(os.path.join(showcase_utils.wgt_deployer.root_dir, url2pathname(xhtml.url)))
except Exception as e:
return build_response(request, 502, {'error_msg': _("(X)HTML code is not accessible"), 'details': "%s" % e}, WIDGET_ERROR_FORMATTERS)
else:
# Code contents comes as unicode from persistence, we need bytes
code = code.encode(charset)
if xhtml.cacheable and (xhtml.code == '' or xhtml.code_timestamp is None):
try:
xhtml.code = code.decode(charset)
except UnicodeDecodeError:
msg = _('Widget code was not encoded using the specified charset (%(charset)s as stated in the widget description file).') % {'charset': charset}
return build_response(request, 502, {'error_msg': msg}, WIDGET_ERROR_FORMATTERS)
xhtml.code_timestamp = time.time() * 1000
xhtml.save()
elif not xhtml.cacheable and xhtml.code != '':
xhtml.code = ''
xhtml.code_timestamp = None
xhtml.save()
try:
code = fix_widget_code(code, base_url, content_type, request, charset, xhtml.use_platform_style, process_requirements(widget_info['requirements']), force_base, mode)
except UnicodeDecodeError:
msg = _('Widget code was not encoded using the specified charset (%(charset)s as stated in the widget description file).') % {'charset': charset}
return build_response(request, 502, {'error_msg': msg}, WIDGET_ERROR_FORMATTERS)
except Exception as e:
msg = _('Error processing widget code')
return build_response(request, 502, {'error_msg': msg, 'details':"%s" % e}, WIDGET_ERROR_FORMATTERS)
if xhtml.cacheable:
cache_timeout = 31536000 # 1 year
cache_entry = {
'code': code,
'content_type': '%s; charset=%s' % (content_type, charset),
'timestamp': xhtml.code_timestamp,
'timeout': cache_timeout,
}
cache.set(cache_key, cache_entry, cache_timeout)
else:
cache_timeout = 0
response = HttpResponse(code, content_type='%s; charset=%s' % (content_type, charset))
patch_cache_headers(response, xhtml.code_timestamp, cache_timeout)
return response
def read(self, request, vendor, name, version):
resource = get_object_or_404(CatalogueResource.objects.select_related('widget__xhtml'), vendor=vendor, short_name=name, version=version)
# For now, all widgets are freely accessible/distributable
#if not resource.is_available_for(request.user):
# return build_error_response(request, 403, "Forbidden")
if resource.resource_type() != 'widget':
raise Http404()
mode = request.GET.get('mode', 'classic')
widget_info = json.loads(resource.json_description)
# check if the xhtml code has been cached
if widget_info['contents']['cacheable'] is True:
cache_key = resource.widget.xhtml.get_cache_key(get_current_domain(request), mode)
cache_entry = cache.get(cache_key)
if cache_entry is not None:
response = HttpResponse(cache_entry['code'], content_type=cache_entry['content_type'])
patch_cache_headers(response, cache_entry['timestamp'], cache_entry['timeout'])
return response
# process xhtml
xhtml = resource.widget.xhtml
content_type = widget_info['contents'].get('contenttype', 'text/html')
charset = widget_info['contents'].get('charset', 'utf-8')
force_base = False
base_url = xhtml.url
if not base_url.startswith(('http://', 'https://')):
# Newer versions of Django urlencode urls created using reverse
# Fix double encoding
base_url = urlunquote(base_url)
base_url = get_absolute_reverse_url('wirecloud.showcase_media', args=(base_url.split('/', 3)), request=request)
force_base = True
code = xhtml.code
if not xhtml.cacheable or code == '':
try:
if xhtml.url.startswith(('http://', 'https://')):
code = download_http_content(urljoin(base_url, xhtml.url), user=request.user)
else:
code = download_local_file(os.path.join(showcase_utils.wgt_deployer.root_dir, url2pathname(xhtml.url)))
except Exception as e:
return build_response(request, 502, {'error_msg': _("(X)HTML code is not accessible"), 'details': "%s" % e}, WIDGET_ERROR_FORMATTERS)
else:
# Code contents comes as unicode from persistence, we need bytes
code = code.encode(charset)
if xhtml.cacheable and (xhtml.code == '' or xhtml.code_timestamp is None):
try:
xhtml.code = code.decode(charset)
except UnicodeDecodeError:
msg = _('Widget code was not encoded using the specified charset (%(charset)s as stated in the widget description file).') % {'charset': charset}
return build_response(request, 502, {'error_msg': msg}, WIDGET_ERROR_FORMATTERS)
xhtml.code_timestamp = time.time() * 1000
xhtml.save()
elif not xhtml.cacheable and xhtml.code != '':
xhtml.code = ''
xhtml.code_timestamp = None
xhtml.save()
try:
code = fix_widget_code(code, base_url, content_type, request, charset, xhtml.use_platform_style, process_requirements(widget_info['requirements']), force_base, mode)
except UnicodeDecodeError:
msg = _('Widget code was not encoded using the specified charset (%(charset)s as stated in the widget description file).') % {'charset': charset}
return build_response(request, 502, {'error_msg': msg}, WIDGET_ERROR_FORMATTERS)
except Exception as e:
msg = _('Error processing widget code')
return build_response(request, 502, {'error_msg': msg, 'details':"%s" % e}, WIDGET_ERROR_FORMATTERS)
if xhtml.cacheable:
cache_timeout = 31536000 # 1 year
cache_entry = {
'code': code,
'content_type': '%s; charset=%s' % (content_type, charset),
'timestamp': xhtml.code_timestamp,
'timeout': cache_timeout,
}
cache.set(cache_key, cache_entry, cache_timeout)
else:
cache_timeout = 0
response = HttpResponse(code, content_type='%s; charset=%s' % (content_type, charset))
patch_cache_headers(response, xhtml.code_timestamp, cache_timeout)
return response
def process_widget_code(request, resource):
mode = request.GET.get('mode', 'classic')
theme = request.GET.get('theme', get_active_theme_name())
widget_info = json.loads(resource.json_description)
# check if the xhtml code has been cached
if widget_info['contents']['cacheable'] is True:
cache_key = resource.widget.xhtml.get_cache_key(get_current_domain(request), mode, theme)
cache_entry = cache.get(cache_key)
if cache_entry is not None:
response = HttpResponse(cache_entry['code'], content_type=cache_entry['content_type'])
patch_cache_headers(response, cache_entry['timestamp'], cache_entry['timeout'])
return response
# process xhtml
xhtml = resource.widget.xhtml
content_type = widget_info['contents'].get('contenttype', 'text/html')
charset = widget_info['contents'].get('charset', 'utf-8')
code = xhtml.code
if not xhtml.cacheable or code == '':
try:
code = download_local_file(os.path.join(showcase_utils.wgt_deployer.root_dir, url2pathname(xhtml.url)))
except Exception as e:
if isinstance(e, IOError) and e.errno == errno.ENOENT:
return build_response(request, 404, {'error_msg': _("Widget code not found"), 'details': "%s" % e}, WIDGET_ERROR_FORMATTERS)
else:
return build_response(request, 500, {'error_msg': _("Error reading widget code"), 'details': "%s" % e}, WIDGET_ERROR_FORMATTERS)
else:
# Code contents comes as unicode from persistence, we need bytes
code = code.encode(charset)
if xhtml.cacheable and (xhtml.code == '' or xhtml.code_timestamp is None):
try:
xhtml.code = code.decode(charset)
except UnicodeDecodeError:
msg = _('Widget code was not encoded using the specified charset (%(charset)s as stated in the widget description file).') % {'charset': charset}
return build_response(request, 502, {'error_msg': msg}, WIDGET_ERROR_FORMATTERS)
xhtml.code_timestamp = time.time() * 1000
xhtml.save()
try:
code = fix_widget_code(code, content_type, request, charset, xhtml.use_platform_style, process_requirements(widget_info['requirements']), mode, theme)
except UnicodeDecodeError:
msg = _('Widget code was not encoded using the specified charset (%(charset)s as stated in the widget description file).') % {'charset': charset}
return build_response(request, 502, {'error_msg': msg}, WIDGET_ERROR_FORMATTERS)
except Exception as e:
msg = _('Error processing widget code')
return build_response(request, 502, {'error_msg': msg, 'details':"%s" % e}, WIDGET_ERROR_FORMATTERS)
if xhtml.cacheable:
cache_timeout = 31536000 # 1 year
cache_entry = {
'code': code,
'content_type': '%s; charset=%s' % (content_type, charset),
'timestamp': xhtml.code_timestamp,
'timeout': cache_timeout,
}
cache.set(cache_key, cache_entry, cache_timeout)
else:
cache_timeout = 0
response = HttpResponse(code, content_type='%s; charset=%s' % (content_type, charset))
patch_cache_headers(response, xhtml.code_timestamp, cache_timeout)
return response
def process_widget_code(request, resource):
mode = request.GET.get('mode', 'classic')
theme = request.GET.get('theme', get_active_theme_name())
widget_info = json.loads(resource.json_description)
# check if the xhtml code has been cached
if widget_info['contents']['cacheable'] is True:
cache_key = resource.widget.xhtml.get_cache_key(
get_current_domain(request), mode, theme)
cache_entry = cache.get(cache_key)
if cache_entry is not None:
response = HttpResponse(cache_entry['code'],
content_type=cache_entry['content_type'])
patch_cache_headers(response, cache_entry['timestamp'],
cache_entry['timeout'])
return response
# process xhtml
xhtml = resource.widget.xhtml
content_type = widget_info['contents'].get('contenttype', 'text/html')
charset = widget_info['contents'].get('charset', 'utf-8')
code = xhtml.code
if not xhtml.cacheable or code == '':
try:
code = download_local_file(
os.path.join(showcase_utils.wgt_deployer.root_dir,
url2pathname(xhtml.url)))
except Exception as e:
if isinstance(e, IOError) and e.errno == errno.ENOENT:
return build_response(request, 404, {
'error_msg': _("Widget code not found"),
'details': "%s" % e
}, WIDGET_ERROR_FORMATTERS)
else:
return build_response(
request, 500, {
'error_msg': _("Error reading widget code"),
'details': "%s" % e
}, WIDGET_ERROR_FORMATTERS)
else:
# Code contents comes as unicode from persistence, we need bytes
code = code.encode(charset)
if xhtml.cacheable and (xhtml.code == '' or xhtml.code_timestamp is None):
try:
xhtml.code = code.decode(charset)
except UnicodeDecodeError:
msg = _(
'Widget code was not encoded using the specified charset (%(charset)s as stated in the widget description file).'
) % {
'charset': charset
}
return build_response(request, 502, {'error_msg': msg},
WIDGET_ERROR_FORMATTERS)
xhtml.code_timestamp = time.time() * 1000
xhtml.save()
try:
code = fix_widget_code(
code, content_type, request, charset, xhtml.use_platform_style,
process_requirements(widget_info['requirements']), mode, theme)
except UnicodeDecodeError:
msg = _(
'Widget code was not encoded using the specified charset (%(charset)s as stated in the widget description file).'
) % {
'charset': charset
}
return build_response(request, 502, {'error_msg': msg},
WIDGET_ERROR_FORMATTERS)
except Exception as e:
msg = _('Error processing widget code')
return build_response(request, 502, {
'error_msg': msg,
'details': "%s" % e
}, WIDGET_ERROR_FORMATTERS)
if xhtml.cacheable:
cache_timeout = 31536000 # 1 year
cache_entry = {
'code': code,
'content_type': '%s; charset=%s' % (content_type, charset),
'timestamp': xhtml.code_timestamp,
'timeout': cache_timeout,
}
cache.set(cache_key, cache_entry, cache_timeout)
else:
cache_timeout = 0
response = HttpResponse(code,
content_type='%s; charset=%s' %
(content_type, charset))
patch_cache_headers(response, xhtml.code_timestamp, cache_timeout)
return response