mirror of https://github.com/ae-utbm/sith3.git
283 lines
10 KiB
Python
283 lines
10 KiB
Python
# -*- coding:utf-8 -*
|
|
#
|
|
# Copyright 2023 © AE UTBM
|
|
# ae@utbm.fr / ae.info@utbm.fr
|
|
#
|
|
# This file is part of the website of the UTBM Student Association (AE UTBM),
|
|
# https://ae.utbm.fr.
|
|
#
|
|
# You can find the source code of the website at https://github.com/ae-utbm/sith3
|
|
#
|
|
# LICENSED UNDER THE GNU GENERAL PUBLIC LICENSE VERSION 3 (GPLv3)
|
|
# SEE : https://raw.githubusercontent.com/ae-utbm/sith3/master/LICENSE
|
|
# OR WITHIN THE LOCAL FILE "LICENSE"
|
|
#
|
|
#
|
|
|
|
import os
|
|
import re
|
|
import subprocess
|
|
from datetime import date
|
|
|
|
# Image utils
|
|
from io import BytesIO
|
|
from typing import Optional
|
|
|
|
import PIL
|
|
from django.conf import settings
|
|
from django.core.files.base import ContentFile
|
|
from PIL import ExifTags
|
|
from django.utils import timezone
|
|
|
|
|
|
def get_git_revision_short_hash() -> str:
|
|
"""
|
|
Return the short hash of the current commit
|
|
"""
|
|
try:
|
|
output = subprocess.check_output(["git", "rev-parse", "--short", "HEAD"])
|
|
if isinstance(output, bytes):
|
|
return output.decode("ascii").strip()
|
|
return output.strip()
|
|
except subprocess.CalledProcessError:
|
|
return ""
|
|
|
|
|
|
def get_start_of_semester(today: Optional[date] = None) -> date:
|
|
"""
|
|
Return the date of the start of the semester of the given date.
|
|
If no date is given, return the start date of the current semester.
|
|
|
|
The current semester is computed as follows:
|
|
|
|
- If the date is between 15/08 and 31/12 => Autumn semester.
|
|
- If the date is between 01/01 and 15/02 => Autumn semester of the previous year.
|
|
- If the date is between 15/02 and 15/08 => Spring semester
|
|
|
|
:param today: the date to use to compute the semester. If None, use today's date.
|
|
:return: the date of the start of the semester
|
|
"""
|
|
if today is None:
|
|
today = timezone.now().date()
|
|
|
|
autumn = date(today.year, *settings.SITH_SEMESTER_START_AUTUMN)
|
|
spring = date(today.year, *settings.SITH_SEMESTER_START_SPRING)
|
|
|
|
if today >= autumn: # between 15/08 (included) and 31/12 -> autumn semester
|
|
return autumn
|
|
if today >= spring: # between 15/02 (included) and 15/08 -> spring semester
|
|
return spring
|
|
# between 01/01 and 15/02 -> autumn semester of the previous year
|
|
return autumn.replace(year=autumn.year - 1)
|
|
|
|
|
|
def get_semester_code(d: Optional[date] = None) -> str:
|
|
"""
|
|
Return the semester code of the given date.
|
|
If no date is given, return the semester code of the current semester.
|
|
|
|
The semester code is an upper letter (A for autumn, P for spring),
|
|
followed by the last two digits of the year.
|
|
For example, the autumn semester of 2018 is "A18".
|
|
|
|
:param d: the date to use to compute the semester. If None, use today's date.
|
|
:return: the semester code corresponding to the given date
|
|
"""
|
|
if d is None:
|
|
d = timezone.now().date()
|
|
|
|
start = get_start_of_semester(d)
|
|
|
|
if (start.month, start.day) == settings.SITH_SEMESTER_START_AUTUMN:
|
|
return "A" + str(start.year)[-2:]
|
|
return "P" + str(start.year)[-2:]
|
|
|
|
|
|
def file_exist(path):
|
|
return os.path.exists(path)
|
|
|
|
|
|
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)
|