import re
from django.contrib.staticfiles import finders
from django.contrib.staticfiles.templatetags.staticfiles import static
from django.core.files.images import get_image_dimensions
from django.template.defaultfilters import filesizeformat
from django.core.urlresolvers import reverse
from django.utils.translation import ugettext_lazy as _, ungettext_lazy
from boards.utils import get_domain, cached_result
from boards import settings
FILE_STUB_IMAGE = 'images/file.png'
FILE_STUB_URL = 'url'
FILE_FILEFORMAT = 'images/fileformats/{}.png'
FILE_TYPES_VIDEO = (
'webm',
'mp4',
'mpeg',
'ogv',
)
FILE_TYPE_SVG = 'svg'
FILE_TYPES_AUDIO = (
'ogg',
'mp3',
'opus',
)
FILE_TYPES_IMAGE = (
'jpeg',
'jpg',
'png',
'bmp',
'gif',
)
PLAIN_FILE_FORMATS = {
'zip': 'archive',
'tar': 'archive',
'gz': 'archive',
'mid' : 'midi',
}
URL_PROTOCOLS = {
'magnet': 'magnet',
}
CSS_CLASS_IMAGE = 'image'
CSS_CLASS_THUMB = 'thumb'
def get_viewers():
return AbstractViewer.__subclasses__()
def get_static_dimensions(filename):
file_path = finders.find(filename)
return get_image_dimensions(file_path)
# TODO Move this to utils
def file_exists(filename):
return finders.find(filename) is not None
class AbstractViewer:
def __init__(self, file, file_type, hash, url):
self.file = file
self.file_type = file_type
self.hash = hash
self.url = url
@staticmethod
def supports(file_type):
return True
def get_view(self):
return '
'.format(self.hash, self.get_format_view(), self.file.url,
self.file_type, filesizeformat(self.file.size))\
+ self._build_context_menu(self.get_context_menu())
def get_format_view(self):
image_name = PLAIN_FILE_FORMATS.get(self.file_type, self.file_type)
file_name = FILE_FILEFORMAT.format(image_name)
if file_exists(file_name):
image = file_name
else:
image = FILE_STUB_IMAGE
w, h = get_static_dimensions(image)
return ''\
'
'\
''.format(self.file.url, static(image), w, h)
def get_context_menu(self):
items = []
items.append({
'name': 'duplicates',
'label': _('Duplicates search'),
'url': reverse('feed') + '?image_hash=' + self.hash,
})
return items
def _build_context_menu(self, items):
if not items:
return ''
cm_items = []
for item in items:
cm_items.append(('{}: {{name: "{}", callback: function(key, opt) {{window.location="{}";}}}}')\
.format(item['name'], item['label'], item['url']))
return ''.format(self.hash, ', '.join(cm_items))
class VideoViewer(AbstractViewer):
@staticmethod
def supports(file_type):
return file_type in FILE_TYPES_VIDEO
def get_format_view(self):
return ''\
.format(self.file.url)
class AudioViewer(AbstractViewer):
@staticmethod
def supports(file_type):
return file_type in FILE_TYPES_AUDIO
def get_format_view(self):
return ''.format(self.file.url)
class SvgViewer(AbstractViewer):
@staticmethod
def supports(file_type):
return file_type == FILE_TYPE_SVG
def get_format_view(self):
return ''\
'
'\
''.format(self.file.url, self.file.url)
class ImageViewer(AbstractViewer):
@staticmethod
def supports(file_type):
return file_type in FILE_TYPES_IMAGE
def get_format_view(self):
metadata = '{}, {}'.format(self.file.name.split('.')[-1],
filesizeformat(self.file.size))
width, height = get_image_dimensions(self.file.file)
preview_path = self.file.path.replace('.', '.200x150.')
pre_width, pre_height = get_image_dimensions(preview_path)
split = self.file.url.rsplit('.', 1)
w, h = 200, 150
thumb_url = '%s.%sx%s.%s' % (split[0], w, h, split[1])
return '' \
'
' \
'' \
.format(CSS_CLASS_THUMB,
thumb_url,
self.hash,
str(pre_width),
str(pre_height), str(width), str(height),
full=self.file.url, image_meta=metadata)
def get_context_menu(self):
items = super().get_context_menu()
image_url = settings.get('External', 'ImageSearchHost') + self.file.url
items.append({
'name': 'google',
'label': 'Google',
'url': 'https://www.google.com/searchbyimage?image_url={}'.format(image_url),
})
items.append({
'name': 'iqdb',
'label': 'iqdb',
'url': 'http://iqdb.org/?url={}'.format(image_url)
})
items.append({
'name': 'tineye',
'label': 'TinEye',
'url': 'http://tineye.com/search?url={}'.format(image_url)
})
return items
class UrlViewer(AbstractViewer):
@staticmethod
def supports(file_type):
return file_type is None
def get_view(self):
return ''.format(self.get_format_view(), get_domain(self.url))
def get_format_view(self):
protocol = self.url.split(':')[0]
domain = get_domain(self.url)
if protocol in URL_PROTOCOLS:
url_image_name = URL_PROTOCOLS.get(protocol)
elif domain:
url_image_name = self._find_image_for_domains(domain) or FILE_STUB_URL
else:
url_image_name = FILE_STUB_URL
image_path = 'images/{}.png'.format(url_image_name)
image = static(image_path)
w, h = get_static_dimensions(image_path)
return '' \
'
' \
''.format(self.url, image, w, h)
def get_context_menu(self):
return []
@cached_result()
def _find_image_for_domains(self, domain):
"""
Searches for the domain image for every domain level except top.
E.g. for l3.example.co.uk it will search for l3.example.co.uk, then
example.co.uk, then co.uk
"""
levels = domain.split('.')
while len(levels) > 1:
domain = '.'.join(levels)
filename = 'images/domains/{}.png'.format(domain)
if file_exists(filename):
return 'domains/' + domain
else:
del levels[0]