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re2o/printer/utils.py
2018-12-06 17:57:57 +01:00

90 lines
2.5 KiB
Python

# -*- coding: utf-8 -*-
import subprocess
import os
from django.template.loader import get_template
from django.core.mail import EmailMessage
from preferences.models import GeneralOption, AssoOption
from .models import Digicode
import datetime
def pdfinfo(file_path):
"""
Uses pdfinfo to extract the PDF meta information.
Returns metainfo in a dictionary.
requires poppler-utils
"""
def _extract(row):
"""Extracts the right hand value from a : delimited row"""
row=row.decode()
return row.split(':', 1)[1].strip()
output = {}
labels = ['Title', 'Author', 'Creator', 'Producer', 'CreationDate', 'ModDate',
'Tagged', 'Pages', 'Encrypted', 'Page size',
'File size', 'Optimized', 'PDF version']
cmd_output = subprocess.check_output(['/usr/bin/pdfinfo', file_path])
for line in cmd_output.splitlines():
for label in labels:
if label in line.decode():
output[label] = _extract(line)
return output
def pdfbook(file_path):
"""
Creates a booklet from a pdf
requires texlive-extra-utils
"""
_dir = os.path.dirname(file_path)
_fname = os.path.basename(file_path)
newfile = os.path.join(_dir, "pdfbook_%s" % (_fname,))
check_output(
['/usr/bin/pdfbook',
'--short-edge',
file_path,
'-o', newfile,
])
return newfile
def send_mail_printer(client):
"""Sends an email to the client explaning how to get the printings"""
template = get_template('printer/email_printer')
code = Digicode._gen_code(client)
printer_access_fr = "au quatrième (4) étage du bâtiment J (code B7806)"
printer_access_en = "on fourth (4th) floor of building J (code B7806)"
digicode = True
end_validity = datetime.datetime.now() + datetime.timedelta(3)
end_validity = str(end_validity.date())
ctx = {
'name': "{} {}".format(
client.name,
client.surname
),
'printer_access_fr' : printer_access_fr,
'printer_access_en' : printer_access_en,
'digicode' : digicode,
'code' : code,
'end_validity' : end_validity,
'contact_mail': AssoOption.get_cached_value('contact'),
'asso_name': AssoOption.get_cached_value('name')
}
mail = EmailMessage(
'Information',
template.render(ctx),
GeneralOption.get_cached_value('email_from'),
[client.get_mail],
)
mail.send()