fix(audit): centraliser l'horloge UTC

app/discord_bot.py

@@ -65,6 +65,8 @@ from discord.ext import commands
 from dotenv import load_dotenv
 from sqlalchemy.exc import SQLAlchemyError
 
+from app.time_utils import utc_now_naive
+
 load_dotenv()
 DISCORD_BOT_TOKEN = os.getenv('DISCORD_BOT_TOKEN')
 
@@ -780,7 +782,7 @@ class TeamTryoutsBot(commands.Bot):
             coach_obj = request.coach
 
             request.status = 'approved'
-            request.responded_at = datetime.utcnow()
+            request.responded_at = utc_now_naive()
         except SQLAlchemyError:
             db.session.rollback()
             logger.exception('Could not read One on One request %s to approve it', request_id)
@@ -875,7 +877,7 @@ class TeamTryoutsBot(commands.Bot):
 
         try:
             request.status = 'rejected'
-            request.responded_at = datetime.utcnow()
+            request.responded_at = utc_now_naive()
             if refusal_note:
                 request.coach_rejection_message = refusal_note
         except SQLAlchemyError:

app/models/availability/base.py

@@ -1,8 +1,7 @@
 """Abstract base class for availability models (PlayerDisponibility + CoachAvailability)."""
 
-from datetime import datetime
-
 from app.extensions import db
+from app.time_utils import utc_now_naive
 
 
 class BaseAvailability(db.Model):
@@ -13,5 +12,5 @@ class BaseAvailability(db.Model):
     day_of_week = db.Column(db.Integer, nullable=False)
     start_time = db.Column(db.Time, nullable=False)
     end_time = db.Column(db.Time, nullable=False)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=utc_now_naive)
-    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    updated_at = db.Column(db.DateTime, default=utc_now_naive, onupdate=utc_now_naive)

app/models/contract.py

@@ -1,8 +1,7 @@
 """Contract documents for players to sign."""
 
-from datetime import datetime
-
 from app.extensions import db
+from app.time_utils import utc_now_naive
 
 
 class Contract(db.Model):
@@ -23,7 +22,7 @@ class Contract(db.Model):
 
     status = db.Column(db.String(20), default='pending')
     notes = db.Column(db.Text, nullable=True)
-    uploaded_at = db.Column(db.DateTime, default=datetime.utcnow)
+    uploaded_at = db.Column(db.DateTime, default=utc_now_naive)
     signed_at = db.Column(db.DateTime, nullable=True)
 
     player = db.relationship('User', foreign_keys=[player_id], backref='contracts')

app/models/evaluation.py

@@ -1,8 +1,7 @@
 """Player evaluation record."""
 
-from datetime import datetime
-
 from app.extensions import db
+from app.time_utils import utc_now_naive
 
 
 class Evaluation(db.Model):
@@ -25,8 +24,8 @@ class Evaluation(db.Model):
     overall_score = db.Column(db.Float, nullable=True)
     comments = db.Column(db.Text, nullable=True)
     position_recommendation = db.Column(db.String(50), nullable=True)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=utc_now_naive)
-    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    updated_at = db.Column(db.DateTime, default=utc_now_naive, onupdate=utc_now_naive)
 
     __table_args__ = (
         db.UniqueConstraint('tryout_id', 'player_id', 'evaluator_id', name='unique_evaluation'),

app/models/match_model/base.py

@@ -1,8 +1,7 @@
 """Abstract base class for match models (Match + TeamMatch)."""
 
-from datetime import datetime
-
 from app.extensions import db
+from app.time_utils import utc_now_naive
 
 
 class BaseMatch(db.Model):
@@ -18,4 +17,4 @@ class BaseMatch(db.Model):
     location = db.Column(db.String(200), nullable=True)
     status = db.Column(db.String(20), default='scheduled')
     created_by = db.Column(db.Integer, db.ForeignKey('users.id'), nullable=False)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=utc_now_naive)

app/models/one_on_one_request.py

@@ -1,8 +1,7 @@
 """Request from player to coach for a One on One session."""
 
-from datetime import datetime
-
 from app.extensions import db
+from app.time_utils import utc_now_naive
 
 
 class OneOnOneRequest(db.Model):
@@ -18,7 +17,7 @@ class OneOnOneRequest(db.Model):
     end_time = db.Column(db.Time, nullable=False)
     points = db.Column(db.Text, nullable=True)
     status = db.Column(db.String(20), default='pending')
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=utc_now_naive)
     responded_at = db.Column(db.DateTime, nullable=True)
     discord_message_id = db.Column(db.BigInteger, nullable=True)
     coach_rejection_message = db.Column(db.Text, nullable=True)

app/models/org_team/org_team.py

@@ -1,9 +1,8 @@
 """Persistent organisation team (e.g. Varsity, JV)."""
 
-from datetime import datetime
-
 from app.extensions import db
 from app.models._associations import org_team_coaches, org_team_managers
+from app.time_utils import utc_now_naive
 
 
 class OrgTeam(db.Model):
@@ -13,7 +12,7 @@ class OrgTeam(db.Model):
     id = db.Column(db.Integer, primary_key=True)
     name = db.Column(db.String(100), nullable=False, unique=True)
     created_by = db.Column(db.Integer, db.ForeignKey('users.id'), nullable=False)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=utc_now_naive)
 
     coach_id = db.Column(db.Integer, db.ForeignKey('users.id'), nullable=True)
     manager_id = db.Column(db.Integer, db.ForeignKey('users.id'), nullable=True)

app/models/org_team/team_player.py

@@ -1,8 +1,7 @@
 """Many-to-many junction: player to org-team."""
 
-from datetime import datetime
-
 from app.extensions import db
+from app.time_utils import utc_now_naive
 
 
 class TeamPlayer(db.Model):
@@ -14,7 +13,7 @@ class TeamPlayer(db.Model):
     org_team_id = db.Column(db.Integer, db.ForeignKey('org_teams.id'), nullable=False)
     status = db.Column(db.String(20), nullable=False, default='starter')
     position = db.Column(db.String(50), nullable=True)
-    added_at = db.Column(db.DateTime, default=datetime.utcnow)
+    added_at = db.Column(db.DateTime, default=utc_now_naive)
 
     player = db.relationship('User', foreign_keys=[player_id], backref='team_placements')
     org_team = db.relationship('OrgTeam', foreign_keys=[org_team_id], backref='team_players')

app/models/participant/base.py

@@ -1,8 +1,7 @@
 """Abstract base class for match participant models."""
 
-from datetime import datetime
-
 from app.extensions import db
+from app.time_utils import utc_now_naive
 
 
 class BaseParticipant(db.Model):
@@ -11,4 +10,4 @@ class BaseParticipant(db.Model):
     __abstract__ = True
 
     player_id = db.Column(db.Integer, db.ForeignKey('users.id'), nullable=False)
-    added_at = db.Column(db.DateTime, default=datetime.utcnow)
+    added_at = db.Column(db.DateTime, default=utc_now_naive)

app/models/personal_note.py

@@ -1,8 +1,7 @@
 """Personal notes from coach to individual player."""
 
-from datetime import datetime
-
 from app.extensions import db
+from app.time_utils import utc_now_naive
 
 
 class PersonalNote(db.Model):
@@ -13,8 +12,8 @@ class PersonalNote(db.Model):
     player_id = db.Column(db.Integer, db.ForeignKey('users.id'), nullable=False)
     coach_id = db.Column(db.Integer, db.ForeignKey('users.id'), nullable=False)
     content = db.Column(db.Text, nullable=False)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=utc_now_naive)
-    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    updated_at = db.Column(db.DateTime, default=utc_now_naive, onupdate=utc_now_naive)
 
     match_id = db.Column(db.Integer, db.ForeignKey('matches.id'), nullable=True)
     team_id = db.Column(db.Integer, db.ForeignKey('teams.id'), nullable=True)

app/models/team/team.py

@@ -1,8 +1,7 @@
 """Tryout-specific team (e.g. Alpha, Bravo within a single tryout)."""
 
-from datetime import datetime
-
 from app.extensions import db
+from app.time_utils import utc_now_naive
 
 
 class Team(db.Model):
@@ -13,7 +12,7 @@ class Team(db.Model):
     tryout_id = db.Column(db.Integer, db.ForeignKey('tryouts.id'), nullable=False)
     name = db.Column(db.String(100), nullable=False)
     created_by = db.Column(db.Integer, db.ForeignKey('users.id'), nullable=False)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=utc_now_naive)
 
     creator = db.relationship('User', backref='created_teams')
     members = db.relationship('TeamMember', backref='team', lazy='dynamic')

app/models/team/team_member.py

@@ -1,8 +1,7 @@
 """Link between a player and a tryout-specific team."""
 
-from datetime import datetime
-
 from app.extensions import db
+from app.time_utils import utc_now_naive
 
 
 class TeamMember(db.Model):
@@ -13,6 +12,6 @@ class TeamMember(db.Model):
     team_id = db.Column(db.Integer, db.ForeignKey('teams.id'), nullable=False)
     player_id = db.Column(db.Integer, db.ForeignKey('users.id'), nullable=False)
     position = db.Column(db.String(50), nullable=True)
-    added_at = db.Column(db.DateTime, default=datetime.utcnow)
+    added_at = db.Column(db.DateTime, default=utc_now_naive)
 
     player = db.relationship('User', overlaps="player_ref,team_assignments")

app/models/team_note.py

@@ -1,8 +1,7 @@
 """Team improvement notes from coach."""
 
-from datetime import datetime
-
 from app.extensions import db
+from app.time_utils import utc_now_naive
 
 
 class TeamNote(db.Model):
@@ -13,8 +12,8 @@ class TeamNote(db.Model):
     org_team_id = db.Column(db.Integer, db.ForeignKey('org_teams.id'), nullable=False)
     coach_id = db.Column(db.Integer, db.ForeignKey('users.id'), nullable=False)
     content = db.Column(db.Text, nullable=False)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=utc_now_naive)
-    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    updated_at = db.Column(db.DateTime, default=utc_now_naive, onupdate=utc_now_naive)
 
     team = db.relationship('OrgTeam', backref='team_notes')
     coach = db.relationship('User', foreign_keys=[coach_id])

app/models/tryout/tryout.py

@@ -1,9 +1,8 @@
 """Tryout event for player evaluations and team formation."""
 
-from datetime import datetime
-
 from app.extensions import db
 from app.models._associations import tryout_coaches
+from app.time_utils import utc_now_naive
 
 
 class Tryout(db.Model):
@@ -25,7 +24,7 @@ class Tryout(db.Model):
     coach_id = db.Column(
         db.Integer, db.ForeignKey('users.id'), nullable=True
     )  # deprecated, kept for migration
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=utc_now_naive)
 
     creator = db.relationship('User', foreign_keys=[created_by], backref='created_tryouts')
     manager = db.relationship('User', foreign_keys=[manager_id], backref='managed_tryouts')

app/models/tryout/tryout_registration.py

@@ -1,8 +1,7 @@
 """Registration linking a player to a tryout."""
 
-from datetime import datetime
-
 from app.extensions import db
+from app.time_utils import utc_now_naive
 
 
 class TryoutRegistration(db.Model):
@@ -12,6 +11,6 @@ class TryoutRegistration(db.Model):
     id = db.Column(db.Integer, primary_key=True)
     tryout_id = db.Column(db.Integer, db.ForeignKey('tryouts.id'), nullable=False)
     player_id = db.Column(db.Integer, db.ForeignKey('users.id'), nullable=False)
-    registered_at = db.Column(db.DateTime, default=datetime.utcnow)
+    registered_at = db.Column(db.DateTime, default=utc_now_naive)
     status = db.Column(db.String(20), default='registered')
     notes = db.Column(db.Text, nullable=True)

app/models/user_model/user.py

@@ -1,10 +1,9 @@
 """Base User model — shared fields and polymorphic configuration."""
 
-from datetime import datetime
-
 from flask_login import UserMixin
 
 from app.extensions import db
+from app.time_utils import utc_now_naive
 
 
 class User(UserMixin, db.Model):
@@ -25,7 +24,7 @@ class User(UserMixin, db.Model):
     email = db.Column(db.String(120), unique=True, nullable=False)
     phone = db.Column(db.String(20), nullable=True)
     is_active_account = db.Column(db.Boolean, default=True)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=utc_now_naive)
 
     failed_login_attempts = db.Column(db.Integer, default=0)
     locked_until = db.Column(db.DateTime, nullable=True)

app/routes/auth.py

@@ -8,7 +8,7 @@ password policy enforcement and sign-up screening.
 import os
 import secrets
 import time
-from datetime import datetime, timedelta
+from datetime import timedelta
 from urllib.parse import urlencode, urlparse
 
 import requests
@@ -22,6 +22,7 @@ from app.forms import form_gamertags
 from app.i18n import LOCALE_SESSION_KEY
 from app.logging_config import log_auth_event
 from app.models import ESPORT_GAMES, Player, User
+from app.time_utils import utc_now_naive
 from app.validators import LoginSchema, RegisterSchema, validate_discord_user_id
 
 #: Session key holding the pending OAuth2 anti-forgery token.
@@ -294,7 +295,7 @@ def login():
             )
             if user.failed_login_attempts >= MAX_LOGIN_ATTEMPTS:
                 minutes = cooloff_minutes(user.failed_login_attempts)
-                user.locked_until = datetime.utcnow() + timedelta(minutes=minutes)
+                user.locked_until = utc_now_naive() + timedelta(minutes=minutes)
                 log_auth_event(
                     'account.throttled',
                     username=username,

app/routes/team_matches.py

@@ -3,8 +3,6 @@
 Uses polymorphic isinstance checks instead of role-string comparisons.
 """
 
-from datetime import datetime
-
 from flask import Blueprint, flash, jsonify, redirect, render_template, request, url_for
 from flask_babel import gettext as _
 from flask_login import current_user, login_required
@@ -27,6 +25,7 @@ from app.pagination import paginate
 from app.permissions import can_manage_org_team, coach_org_teams, visible_org_teams
 from app.routes.matches import default_end_time
 from app.services.scheduling import notify_participants, zip_participants
+from app.time_utils import utc_now_naive
 from app.validators import TeamMatchSchema
 
 team_matches_bp = Blueprint('team_matches', __name__, url_prefix='/team-matches')
@@ -100,7 +99,7 @@ def list_matches():
         teams=teams,
         match_data=match_data,
         pagination=matches_page,
-        now=datetime.utcnow(),
+        now=utc_now_naive(),
     )
 
 

app/routes/teams.py

@@ -3,8 +3,6 @@
 Uses polymorphic isinstance checks instead of role-string comparisons.
 """
 
-from datetime import datetime
-
 from flask import Blueprint, flash, jsonify, redirect, render_template, url_for
 from flask_babel import gettext as _
 from flask_login import current_user, login_required
@@ -29,6 +27,7 @@ from app.models import (
     User,
 )
 from app.permissions import visible_org_teams
+from app.time_utils import utc_now_naive
 from app.validators import NoteContentSchema, OrgTeamSchema, TeamPlayerSchema, TeamStaffSchema
 
 teams_bp = Blueprint('teams', __name__, url_prefix='/teams')
@@ -82,7 +81,7 @@ def my_teams():
     from app.models import TeamMatch, TeamMatchParticipant
 
     player_teams = current_user.get_org_teams()
-    now = datetime.utcnow()
+    now = utc_now_naive()
     team_data = []
 
     for org_team in player_teams:

app/routes/tryouts.py

@@ -4,8 +4,6 @@ This module handles CRUD operations for tryouts and player registrations.
 Uses polymorphic isinstance checks instead of role-string comparisons.
 """
 
-from datetime import datetime
-
 from flask import Blueprint, abort, flash, redirect, render_template, request, url_for
 from flask_babel import gettext as _
 from flask_login import current_user, login_required
@@ -33,6 +31,7 @@ from app.models import (
     TryoutRegistration,
     User,
 )
+from app.time_utils import utc_now_naive
 from app.validators import (
     PlayerSelectionSchema,
     TryoutRegistrationStatusSchema,
@@ -114,7 +113,7 @@ def list_tryouts():
     Delegates to the polymorphic User subclass's get_visible_tryouts() method.
     """
     tryouts = current_user.get_visible_tryouts()
-    return render_template('pages/tryouts.html', tryouts=tryouts, now=datetime.utcnow())
+    return render_template('pages/tryouts.html', tryouts=tryouts, now=utc_now_naive())
 
 
 @tryouts_bp.route('/create', methods=['GET', 'POST'])
@@ -425,7 +424,7 @@ def view_tryout(tryout_id):
         matches=matches,
         match_data=match_data,
         game_positions=GAME_POSITIONS,
-        now=datetime.utcnow(),
+        now=utc_now_naive(),
     )
 
 

app/routes/users/contracts.py

@@ -2,7 +2,6 @@
 
 import os
 import uuid
-from datetime import datetime
 
 from flask import flash, redirect, render_template, request, send_file, url_for
 from flask_babel import gettext as _
@@ -20,6 +19,7 @@ from app.routes.users._shared import (
 )
 from app.routes.users.blueprint import users_bp
 from app.storage import CONTRACTS_DIR, document_path
+from app.time_utils import utc_now_naive
 from app.validators import UploadContractSchema
 
 
@@ -172,7 +172,7 @@ def upload_signed_contract(contract_id):
     contract.signed_filename = signed_filename
     contract.signed_file_path = signed_path
     contract.status = 'signed'
-    contract.signed_at = datetime.utcnow()
+    contract.signed_at = utc_now_naive()
     db.session.commit()
     flash(_('Signed contract uploaded successfully!'), 'success')
     return redirect(url_for('users.list_contracts'))

app/routes/users/one_on_one.py

@@ -1,7 +1,5 @@
 """One-on-one sessions between a player and their coach."""
 
-from datetime import datetime
-
 from flask import flash, redirect, render_template, request, url_for
 from flask_babel import gettext as _
 from flask_login import current_user, login_required
@@ -12,6 +10,7 @@ from app.forms import flash_validation_errors, form_payload
 from app.models import Coach, CoachAvailability, OneOnOneRequest, PersonalNote, Player, TeamNote
 from app.routes.users.blueprint import users_bp
 from app.services.notifications import send_discord_notification
+from app.time_utils import utc_now_naive
 from app.validators import OneOnOneRejectionSchema, OneOnOneRequestSchema
 
 
@@ -178,7 +177,7 @@ def accept_one_on_one(request_id):
 
     player = request_obj.player
     request_obj.status = 'approved'
-    request_obj.responded_at = datetime.utcnow()
+    request_obj.responded_at = utc_now_naive()
     db.session.commit()
 
     # Notify player via Discord (same message as if approved through Discord reactions)
@@ -235,7 +234,7 @@ def reject_one_on_one(request_id):
     player = request_obj.player
 
     request_obj.status = 'rejected'
-    request_obj.responded_at = datetime.utcnow()
+    request_obj.responded_at = utc_now_naive()
     if rejection_reason:
         request_obj.coach_rejection_message = rejection_reason
     db.session.commit()

app/time_utils.py

@@ -0,0 +1,19 @@
+"""Time helpers with explicit storage semantics.
+
+The deployed schema currently stores timestamps in ``DateTime`` columns
+without timezone information.  Until the real PostgreSQL schema is restored
+and migrated, application timestamps must therefore remain naive values.
+They are nevertheless generated from an aware UTC clock so the convention is
+explicit and does not rely on the deprecated :meth:`datetime.utcnow` API.
+"""
+
+from datetime import UTC, datetime
+
+
+def utc_now_naive() -> datetime:
+    """Return the current UTC instant without ``tzinfo`` for legacy columns.
+
+    Replace this compatibility boundary with aware UTC values when the
+    corresponding columns are migrated to timezone-aware types.
+    """
+    return datetime.now(UTC).replace(tzinfo=None)

pyproject.toml

@@ -21,9 +21,6 @@ filterwarnings = [
     "default",
     # discord.py imports audioop, removed from the stdlib in 3.13.
     "ignore:'audioop' is deprecated:DeprecationWarning",
-    # Every model uses datetime.utcnow as a column default. Tracked as
-    # DB-009; the warning would otherwise drown the run.
-    "ignore:datetime.datetime.utcnow:DeprecationWarning",
 ]
 
 [tool.coverage.report]

tests/test_time_utils.py

@@ -0,0 +1,29 @@
+"""Regression tests for the application's timestamp convention."""
+
+import ast
+from datetime import UTC, datetime
+from pathlib import Path
+
+from app.time_utils import utc_now_naive
+
+
+def test_utc_now_naive_is_an_explicit_utc_value():
+    before = datetime.now(UTC).replace(tzinfo=None)
+    actual = utc_now_naive()
+    after = datetime.now(UTC).replace(tzinfo=None)
+
+    assert actual.tzinfo is None
+    assert before <= actual <= after
+
+
+def test_application_does_not_call_deprecated_utcnow():
+    app_root = Path(__file__).parents[1] / 'app'
+    offenders = []
+
+    for path in app_root.rglob('*.py'):
+        tree = ast.parse(path.read_text(encoding='utf-8'), filename=str(path))
+        for node in ast.walk(tree):
+            if isinstance(node, ast.Attribute) and node.attr == 'utcnow':
+                offenders.append(f'{path.relative_to(app_root)}:{node.lineno}')
+
+    assert offenders == []