mirror of
https://github.com/ae-utbm/sith.git
synced 2024-11-18 04:03:22 +00:00
260 lines
9.4 KiB
Python
260 lines
9.4 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 date
|
|
|
|
from PIL import ExifTags
|
|
|
|
# from exceptions import IOError
|
|
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 get_semester(d=date.today()):
|
|
start = get_start_of_semester(d)
|
|
if start.month <= 6:
|
|
return "P" + str(start.year)[-2:]
|
|
else:
|
|
return "A" + str(start.year)[-2:]
|
|
|
|
|
|
def scale_dimension(width, height, long_edge):
|
|
if width > height:
|
|
ratio = long_edge * 1.0 / width
|
|
else:
|
|
ratio = long_edge * 1.0 / 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)
|