332 lines
11 KiB
Python
332 lines
11 KiB
Python
# -*- mode: python -*-
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# -*- coding: utf-8 -*-
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##############################################################################
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#
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# Gestion scolarite IUT
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#
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# Copyright (c) 1999 - 2024 Emmanuel Viennet. All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# Emmanuel Viennet emmanuel.viennet@viennet.net
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#
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##############################################################################
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"""Génération des bulletins de notes en format PDF
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On peut installer plusieurs classes générant des bulletins de formats différents.
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La préférence (par semestre) 'bul_pdf_class_name' conserve le nom de la classe Python
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utilisée pour générer les bulletins en PDF. Elle doit être une sous-classe de PDFBulletinGenerator
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et définir les méthodes fabriquant les éléments PDF:
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gen_part_title
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gen_table
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gen_part_below
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gen_signatures
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Les éléments PDF sont des objets PLATYPUS de la bibliothèque Reportlab.
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Voir la documentation (Reportlab's User Guide), chapitre 5 et suivants.
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Pour définir un nouveau type de bulletin:
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- créer un fichier source sco_bulletins_pdf_xxxx.py où xxxx est le nom (court) de votre type;
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- dans ce fichier, sous-classer PDFBulletinGenerator ou PDFBulletinGeneratorDefault
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(s'inspirer de sco_bulletins_pdf_default);
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- en fin du fichier sco_bulletins_pdf.py, ajouter la ligne
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import sco_bulletins_pdf_xxxx
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- votre type sera alors (après redémarrage de ScoDoc) proposé dans le formulaire de paramètrage.
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Chaque semestre peut si nécessaire utiliser un type de bulletin différent.
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"""
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import io
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import pprint
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import pydoc
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import re
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import time
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import traceback
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from flask import g, request
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from app import log, ScoValueError
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from app.models import FormSemestre, Identite
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from app.scodoc import sco_cache
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from app.scodoc import codes_cursus
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from app.scodoc import sco_pdf
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from app.scodoc import sco_preferences
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from app.scodoc.sco_logos import find_logo
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import app.scodoc.sco_utils as scu
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import sco_version
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def assemble_bulletins_pdf(
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formsemestre_id: int,
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story: list,
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bul_title: str,
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infos,
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pagesbookmarks=None,
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filigranne=None,
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server_name="",
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):
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"Generate PDF document from a story (list of PLATYPUS objects)."
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if not story:
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return ""
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# Paramètres de mise en page
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margins = (
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sco_preferences.get_preference("left_margin", formsemestre_id),
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sco_preferences.get_preference("top_margin", formsemestre_id),
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sco_preferences.get_preference("right_margin", formsemestre_id),
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sco_preferences.get_preference("bottom_margin", formsemestre_id),
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)
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report = io.BytesIO() # in-memory document, no disk file
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document = sco_pdf.BulletinDocTemplate(report)
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document.addPageTemplates(
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sco_pdf.ScoDocPageTemplate(
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document,
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author=f"{sco_version.SCONAME} {sco_version.SCOVERSION} (E. Viennet)",
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title=f"Bulletin {bul_title}",
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subject="Bulletin de note",
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server_name=server_name,
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margins=margins,
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pagesbookmarks=pagesbookmarks,
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filigranne=filigranne,
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preferences=sco_preferences.SemPreferences(formsemestre_id),
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)
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)
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document.multiBuild(story)
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data = report.getvalue()
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return data
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def replacement_function(match):
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balise = match.group(1)
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name = match.group(3)
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logo = find_logo(logoname=name, dept_id=g.scodoc_dept_id)
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if logo is not None:
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return r'<img %s src="%s"%s/>' % (match.group(2), logo.filepath, match.group(4))
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raise ScoValueError(
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'balise "%s": logo "%s" introuvable'
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% (pydoc.html.escape(balise), pydoc.html.escape(name))
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)
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class WrapDict(object):
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"""Wrap a dict so that getitem returns '' when values are None
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and non existent keys returns an error message as value.
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"""
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def __init__(self, adict, none_value=""):
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self.dict = adict
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self.none_value = none_value
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def __getitem__(self, key):
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try:
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value = self.dict[key]
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except KeyError:
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return f"XXX {key} invalide XXX"
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if value is None:
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return self.none_value
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return value
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def process_field(
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field, cdict, style, suppress_empty_pars=False, fmt="pdf", field_name=None
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):
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"""Process a field given in preferences, returns
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- if fmt = 'pdf': a list of Platypus objects
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- if fmt = 'html' : a string
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Substitutes all %()s markup
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Remove potentialy harmful <img> tags
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Replaces <logo name="header" width="xxx" height="xxx">
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by <img src=".../logos/logo_header" width="xxx" height="xxx">
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If fmt = 'html', replaces <para> by <p>. HTML does not allow logos.
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"""
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try:
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# None values are mapped to empty strings by WrapDict
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text = (field or "") % WrapDict(cdict)
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except KeyError as exc:
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missing_key = exc.args[0] if len(exc.args) > 0 else "?"
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log(
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f"""process_field: KeyError {missing_key} on field={field!r}
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values={pprint.pformat(cdict)}
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"""
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)
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text = f"""<para><i>format invalide: champs</i> {missing_key} <i>inexistant !</i></para>"""
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scu.flash_once(
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f"Attention: format PDF invalide (champs {field}, clef {missing_key})"
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)
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raise
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except: # pylint: disable=bare-except
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log(
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f"""process_field: invalid format. field={field!r}
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values={pprint.pformat(cdict)}
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"""
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)
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# ne sera pas visible si lien vers pdf:
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scu.flash_once(f"Attention: format PDF invalide (champs {field})")
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text = (
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"<para><i>format invalide ! (1)</i></para><para>"
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+ traceback.format_exc()
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+ "</para>"
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)
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# remove unhandled or dangerous tags:
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text = re.sub(r"<\s*img", "", text)
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if fmt == "html":
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# convert <para>
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text = re.sub(r"<\s*para(\s*)(.*?)>", r"<p>", text)
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return text
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# --- PDF format:
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# handle logos:
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text = re.sub(
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r"<(\s*)logo(.*?)src\s*=\s*(.*?)>", r"<\1logo\2\3>", text
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) # remove forbidden src attribute
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text = re.sub(
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r'(<\s*logo(.*?)name\s*=\s*"(\w*?)"(.*?)/?>)',
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replacement_function,
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text,
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)
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# nota: le match sur \w*? donne le nom du logo et interdit les .. et autres
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# tentatives d'acceder à d'autres fichiers !
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# la protection contre des noms malveillants est aussi assurée par l'utilisation de
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# secure_filename dans la classe Logo
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# log('field: %s' % (text))
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return sco_pdf.make_paras(
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text, style, suppress_empty=suppress_empty_pars, field_name=field_name
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)
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def get_formsemestre_bulletins_pdf(formsemestre_id, version="selectedevals"):
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"Document pdf avec tous les bulletins du semestre, et filename"
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from app.but import bulletin_but_court
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from app.scodoc import sco_bulletins
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formsemestre: FormSemestre = FormSemestre.query.get_or_404(formsemestre_id)
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versions = (
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scu.BULLETINS_VERSIONS_BUT
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if formsemestre.formation.is_apc()
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else scu.BULLETINS_VERSIONS
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)
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if version not in versions:
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raise ScoValueError(
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"get_formsemestre_bulletins_pdf: version de bulletin demandée invalide !"
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)
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cached = sco_cache.SemBulletinsPDFCache.get(str(formsemestre_id) + "_" + version)
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if cached:
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return cached[1], cached[0]
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fragments = []
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# Make each bulletin
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for etud in formsemestre.get_inscrits(include_demdef=True, order=True):
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if version == "butcourt":
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frag = bulletin_but_court.bulletin_but_court_pdf_frag(etud, formsemestre)
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else:
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frag, _ = sco_bulletins.do_formsemestre_bulletinetud(
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formsemestre,
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etud,
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fmt="pdfpart",
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version=version,
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)
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fragments += frag
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#
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infos = {"DeptName": sco_preferences.get_preference("DeptName", formsemestre_id)}
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if request:
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server_name = request.url_root
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else:
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server_name = ""
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try:
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sco_pdf.PDFLOCK.acquire()
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pdfdoc = assemble_bulletins_pdf(
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formsemestre_id,
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fragments,
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formsemestre.titre_mois(),
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infos,
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server_name=server_name,
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)
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finally:
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sco_pdf.PDFLOCK.release()
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#
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date_iso = time.strftime("%Y-%m-%d")
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filename = "bul-%s-%s.pdf" % (formsemestre.titre_num(), date_iso)
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filename = scu.unescape_html(filename).replace(" ", "_").replace("&", "")
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# fill cache
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sco_cache.SemBulletinsPDFCache.set(
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str(formsemestre_id) + "_" + version, (filename, pdfdoc)
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)
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return pdfdoc, filename
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def get_etud_bulletins_pdf(etudid, version="selectedevals"):
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"Bulletins pdf de tous les semestres de l'étudiant, et filename"
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from app.scodoc import sco_bulletins
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etud = Identite.get_etud(etudid)
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fragments = []
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bookmarks = {}
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filigrannes = {}
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i = 1
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for formsemestre in etud.get_formsemestres():
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frag, filigranne = sco_bulletins.do_formsemestre_bulletinetud(
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formsemestre,
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etud,
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fmt="pdfpart",
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version=version,
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)
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fragments += frag
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filigrannes[i] = filigranne
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bookmarks[i] = formsemestre.session_id() # eg RT-DUT-FI-S1-2015
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i = i + 1
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infos = {"DeptName": sco_preferences.get_preference("DeptName")}
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if request:
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server_name = request.url_root
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else:
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server_name = ""
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try:
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sco_pdf.PDFLOCK.acquire()
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pdfdoc = assemble_bulletins_pdf(
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None,
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fragments,
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etud.nomprenom,
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infos,
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bookmarks,
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filigranne=filigrannes,
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server_name=server_name,
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)
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finally:
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sco_pdf.PDFLOCK.release()
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#
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filename = f"bul-{etud.nomprenom}"
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filename = (
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scu.unescape_html(filename).replace(" ", "_").replace("&", "").replace(".", "")
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+ ".pdf"
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)
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return pdfdoc, filename
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def get_filigranne(etud_etat: str, prefs, decision_sem=None) -> str:
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"""Texte à placer en "filigranne" sur le bulletin pdf"""
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if etud_etat == scu.DEMISSION:
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return "Démission"
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elif etud_etat == codes_cursus.DEF:
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return "Défaillant"
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elif (prefs["bul_show_temporary"] and not decision_sem) or prefs[
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"bul_show_temporary_forced"
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]:
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return prefs["bul_temporary_txt"]
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return ""
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