mirror of
https://github.com/ae-utbm/sith.git
synced 2024-11-18 04:03:22 +00:00
207 lines
8.7 KiB
Python
207 lines
8.7 KiB
Python
# -*- coding:utf-8 -*
|
|
#
|
|
# Copyright 2016,2017
|
|
# - Skia <skia@libskia.so>
|
|
#
|
|
# Ce fichier fait partie du site de l'Association des Étudiants de l'UTBM,
|
|
# http://ae.utbm.fr.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify it under
|
|
# the terms of the GNU General Public License a published by the Free Software
|
|
# Foundation; either version 3 of the License, or (at your option) any later
|
|
# version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful, but WITHOUT
|
|
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
|
|
# details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License along with
|
|
# this program; if not, write to the Free Sofware Foundation, Inc., 59 Temple
|
|
# Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
#
|
|
#
|
|
|
|
import re
|
|
|
|
# Image utils
|
|
|
|
from io import BytesIO
|
|
from datetime import datetime, timezone, date
|
|
|
|
from PIL import Image, ExifTags
|
|
import PIL
|
|
|
|
from django.conf import settings
|
|
from django.core.files.base import ContentFile
|
|
|
|
|
|
def get_start_of_semester(d=date.today()):
|
|
"""
|
|
This function computes the start date of the semester with respect to the given date (default is today),
|
|
and the start date given in settings.SITH_START_DATE.
|
|
It takes the nearest past start date.
|
|
Exemples: with SITH_START_DATE = (8, 15)
|
|
Today -> Start date
|
|
2015-03-17 -> 2015-02-15
|
|
2015-01-11 -> 2014-08-15
|
|
"""
|
|
today = d
|
|
year = today.year
|
|
start = date(year, settings.SITH_START_DATE[0], settings.SITH_START_DATE[1])
|
|
start2 = start.replace(month=(start.month+6)%12)
|
|
if start > start2:
|
|
start, start2 = start2, start
|
|
if today < start:
|
|
return start2.replace(year=year-1)
|
|
elif today < start2:
|
|
return start
|
|
else:
|
|
return start2
|
|
|
|
def scale_dimension(width, height, long_edge):
|
|
if width > height:
|
|
ratio = long_edge * 1. / width
|
|
else:
|
|
ratio = long_edge * 1. / height
|
|
return int(width * ratio), int(height * ratio)
|
|
|
|
def resize_image(im, edge, format):
|
|
(w, h) = im.size
|
|
(width, height) = scale_dimension(w, h, long_edge=edge)
|
|
content = BytesIO()
|
|
im = im.resize((width, height), PIL.Image.ANTIALIAS)
|
|
try:
|
|
im.save(fp=content, format=format.upper(), quality=90, optimize=True, progressive=True)
|
|
except IOError:
|
|
PIL.ImageFile.MAXBLOCK = im.size[0] * im.size[1]
|
|
im.save(fp=content, format=format.upper(), quality=90, optimize=True, progressive=True)
|
|
return ContentFile(content.getvalue())
|
|
|
|
def exif_auto_rotate(image):
|
|
for orientation in ExifTags.TAGS.keys() :
|
|
if ExifTags.TAGS[orientation]=='Orientation' : break
|
|
exif=dict(image._getexif().items())
|
|
|
|
if exif[orientation] == 3 :
|
|
image=image.rotate(180, expand=True)
|
|
elif exif[orientation] == 6 :
|
|
image=image.rotate(270, expand=True)
|
|
elif exif[orientation] == 8 :
|
|
image=image.rotate(90, expand=True)
|
|
|
|
return image
|
|
|
|
def doku_to_markdown(text):
|
|
"""This is a quite correct doku translator"""
|
|
text = re.sub(r'([^:]|^)\/\/(.*?)\/\/', r'*\2*', text) # Italic (prevents protocol:// conflict)
|
|
text = re.sub(r'<del>(.*?)<\/del>', r'~~\1~~', text, flags=re.DOTALL) # Strike (may be multiline)
|
|
text = re.sub(r'<sup>(.*?)<\/sup>', r'^\1^', text) # Superscript (multiline not supported, because almost never used)
|
|
text = re.sub(r'<sub>(.*?)<\/sub>', r'_\1_', text) # Subscript (idem)
|
|
|
|
text = re.sub(r'^======(.*?)======', r'#\1', text, flags=re.MULTILINE) # Titles
|
|
text = re.sub(r'^=====(.*?)=====', r'##\1', text, flags=re.MULTILINE)
|
|
text = re.sub(r'^====(.*?)====', r'###\1', text, flags=re.MULTILINE)
|
|
text = re.sub(r'^===(.*?)===', r'####\1', text, flags=re.MULTILINE)
|
|
text = re.sub(r'^==(.*?)==', r'#####\1', text, flags=re.MULTILINE)
|
|
text = re.sub(r'^=(.*?)=', r'######\1', text, flags=re.MULTILINE)
|
|
|
|
text = re.sub(r'<nowiki>', r'<nosyntax>', text)
|
|
text = re.sub(r'</nowiki>', r'</nosyntax>', text)
|
|
text = re.sub(r'<code>', r'```\n', text)
|
|
text = re.sub(r'</code>', r'\n```', text)
|
|
text = re.sub(r'article://', r'page://', text)
|
|
text = re.sub(r'dfile://', r'file://', text)
|
|
|
|
i = 1
|
|
for fn in re.findall(r'\(\((.*?)\)\)', text): # Footnotes
|
|
text = re.sub(r'\(\((.*?)\)\)', r'[^%s]' % i, text, count=1)
|
|
text += "\n[^%s]: %s\n" % (i, fn)
|
|
i += 1
|
|
|
|
text = re.sub(r'\\{2,}[\s]', r' \n', text) # Carriage return
|
|
|
|
text = re.sub(r'\[\[(.*?)\|(.*?)\]\]', r'[\2](\1)', text) # Links
|
|
text = re.sub(r'\[\[(.*?)\]\]', r'[\1](\1)', text) # Links 2
|
|
text = re.sub(r'{{(.*?)\|(.*?)}}', r'', text) # Images
|
|
text = re.sub(r'{{(.*?)(\|(.*?))?}}', r'', text) # Images 2
|
|
text = re.sub(r'{\[(.*?)(\|(.*?))?\]}', r'[\1](\1)', text) # Video (transform to classic links, since we can't integrate them)
|
|
|
|
text = re.sub(r'###(\d*?)###', r'[[[\1]]]', text) # Progress bar
|
|
|
|
text = re.sub(r'(\n +[^* -][^\n]*(\n +[^* -][^\n]*)*)', r'```\1\n```', text, flags=re.DOTALL) # Block code without lists
|
|
|
|
text = re.sub(r'( +)-(.*)', r'1.\2', text) # Ordered lists
|
|
|
|
new_text = []
|
|
quote_level = 0
|
|
for line in text.splitlines(): # Tables and quotes
|
|
enter = re.finditer(r'\[quote(=(.+?))?\]', line)
|
|
quit = re.finditer(r'\[/quote\]', line)
|
|
if re.search(r'\A\s*\^(([^\^]*?)\^)*', line): # Table part
|
|
line = line.replace('^', '|')
|
|
new_text.append("> " * quote_level + line)
|
|
new_text.append("> " * quote_level + "|---|") # Don't keep the text alignement in tables it's really too complex for what it's worth
|
|
elif enter or quit: # Quote part
|
|
for quote in enter: # Enter quotes (support multiple at a time)
|
|
quote_level += 1
|
|
try:
|
|
new_text.append("> " * quote_level + "##### " + quote.group(2))
|
|
except:
|
|
new_text.append("> " * quote_level)
|
|
line = line.replace(quote.group(0), '')
|
|
final_quote_level = quote_level # Store quote_level to use at the end, since it will be modified during quit iteration
|
|
final_newline = False
|
|
for quote in quit: # Quit quotes (support multiple at a time)
|
|
line = line.replace(quote.group(0), '')
|
|
quote_level -= 1
|
|
final_newline = True
|
|
new_text.append("> " * final_quote_level + line) # Finally append the line
|
|
if final_newline: new_text.append("\n") # Add a new line to ensure the separation between the quote and the following text
|
|
else:
|
|
new_text.append(line)
|
|
|
|
return "\n".join(new_text)
|
|
|
|
def bbcode_to_markdown(text):
|
|
"""This is a very basic BBcode translator"""
|
|
text = re.sub(r'\[b\](.*?)\[\/b\]', r'**\1**', text, flags=re.DOTALL) # Bold
|
|
text = re.sub(r'\[i\](.*?)\[\/i\]', r'*\1*', text, flags=re.DOTALL) # Italic
|
|
text = re.sub(r'\[u\](.*?)\[\/u\]', r'__\1__', text, flags=re.DOTALL) # Underline
|
|
text = re.sub(r'\[s\](.*?)\[\/s\]', r'~~\1~~', text, flags=re.DOTALL) # Strike (may be multiline)
|
|
text = re.sub(r'\[strike\](.*?)\[\/strike\]', r'~~\1~~', text, flags=re.DOTALL) # Strike 2
|
|
|
|
text = re.sub(r'article://', r'page://', text)
|
|
text = re.sub(r'dfile://', r'file://', text)
|
|
|
|
text = re.sub(r'\[url=(.*?)\](.*)\[\/url\]', r'[\2](\1)', text) # Links
|
|
text = re.sub(r'\[url\](.*)\[\/url\]', r'\1', text) # Links 2
|
|
text = re.sub(r'\[img\](.*)\[\/img\]', r'', text) # Images
|
|
|
|
new_text = []
|
|
quote_level = 0
|
|
for line in text.splitlines(): # Tables and quotes
|
|
enter = re.finditer(r'\[quote(=(.+?))?\]', line)
|
|
quit = re.finditer(r'\[/quote\]', line)
|
|
if enter or quit: # Quote part
|
|
for quote in enter: # Enter quotes (support multiple at a time)
|
|
quote_level += 1
|
|
try:
|
|
new_text.append("> " * quote_level + "##### " + quote.group(2))
|
|
except:
|
|
new_text.append("> " * quote_level)
|
|
line = line.replace(quote.group(0), '')
|
|
final_quote_level = quote_level # Store quote_level to use at the end, since it will be modified during quit iteration
|
|
final_newline = False
|
|
for quote in quit: # Quit quotes (support multiple at a time)
|
|
line = line.replace(quote.group(0), '')
|
|
quote_level -= 1
|
|
final_newline = True
|
|
new_text.append("> " * final_quote_level + line) # Finally append the line
|
|
if final_newline: new_text.append("\n") # Add a new line to ensure the separation between the quote and the following text
|
|
else:
|
|
new_text.append(line)
|
|
|
|
return "\n".join(new_text)
|
|
|