fix(audit): fermer les frontieres restantes

app/routes/auth.py

@@ -18,6 +18,7 @@ from flask_login import current_user, login_required, login_user, logout_user
 from marshmallow import ValidationError
 
 from app.extensions import check_password, db, hash_password, limiter
+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
@@ -393,6 +394,13 @@ def register():
         full_name = validated['full_name']
         phone = validated.get('phone')
         selected_games = validated.get('games', [])
+        try:
+            submitted_gamertags = form_gamertags(selected_games)
+        except ValidationError as err:
+            for field, messages in err.messages.items():
+                for msg in messages:
+                    flash(_('%(field)s: %(msg)s', field=field, msg=msg), 'danger')
+            return _rerender_registration(form_data)
         # The OAuth identity is server-side state. It used to be copied into
         # hidden inputs and read back from request.form, which let anyone
         # replace the verified Discord account before submitting (SEC-AUTH-005).
@@ -445,16 +453,14 @@ def register():
         # Create UserGamertag records for each selected game
         from app.models import UserGamertag
 
-        for game in selected_games:
-            field_name = f'gamertag_{game}'
-            gamertag_value = request.form.get(field_name, '').strip()
-            if gamertag_value:
-                gamertag = UserGamertag(
-                    user_id=user.id,
-                    game=game,
-                    gamertag=gamertag_value,
-                )
-                db.session.add(gamertag)
+        for game, gamertag_data in submitted_gamertags.items():
+            gamertag = UserGamertag(
+                user_id=user.id,
+                game=game,
+                gamertag=gamertag_data['gamertag'],
+                platform=gamertag_data['platform'],
+            )
+            db.session.add(gamertag)
         db.session.commit()
 
         # Clear Discord OAuth data from session after successful registration

app/routes/matches.py

@@ -46,6 +46,25 @@ def match_form_payload():
     return form_payload(list_fields=('player_ids',), optional_blank=())
 
 
+def registered_players(tryout_id):
+    """Players registered for one tryout, loaded in a single query.
+
+    The create form previously called ``User.query.get`` twice per
+    registration (once in the filter and once in the result expression),
+    and the edit form called it once per row. Besides scaling linearly, both
+    paths could return duplicates while DB-006 is still pending. The join is
+    bounded and ``distinct`` preserves the form's intended one-option-per-
+    player contract until the database constraint lands.
+    """
+    return (
+        User.query.join(TryoutRegistration, TryoutRegistration.player_id == User.id)
+        .filter(TryoutRegistration.tryout_id == tryout_id)
+        .order_by(User.username)
+        .distinct()
+        .all()
+    )
+
+
 #: How long a match lasts when the form gives a start and no end.
 DEFAULT_MATCH_MINUTES = 30
 
@@ -369,11 +388,7 @@ def create_match(tryout_id):
         return redirect(url_for('tryouts.view_tryout', tryout_id=tryout_id))
 
     teams = Team.query.filter_by(tryout_id=tryout_id).all()
-    registrations = TryoutRegistration.query.filter_by(tryout_id=tryout_id).all()
-    all_players = [
-        User.query.get(r.player_id) for r in registrations if User.query.get(r.player_id)
-    ]
-    all_players = sorted([p for p in all_players if p], key=lambda x: x.username)
+    all_players = registered_players(tryout_id)
     prefill_date = request.args.get('date', '')
 
     def rerender():
@@ -449,9 +464,7 @@ def edit_match(match_id):
         return redirect(url_for('tryouts.view_tryout', tryout_id=tryout.id))
 
     teams = Team.query.filter_by(tryout_id=tryout.id).all()
-    registrations = TryoutRegistration.query.filter_by(tryout_id=tryout.id).all()
-    all_players = [User.query.get(r.player_id) for r in registrations if r.player_id]
-    all_players = sorted([p for p in all_players if p], key=lambda x: x.username)
+    all_players = registered_players(tryout.id)
     current_player_ids = [p.player_id for p in match.participants.all()]
     team1_player_ids = [p.player_id for p in match.participants.filter_by(team_side=1).all()]
     team2_player_ids = [p.player_id for p in match.participants.filter_by(team_side=2).all()]

app/routes/teams.py

@@ -5,7 +5,7 @@ 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 import Blueprint, flash, jsonify, redirect, render_template, url_for
 from flask_babel import gettext as _
 from flask_login import current_user, login_required
 from marshmallow import ValidationError
@@ -29,7 +29,7 @@ from app.models import (
     User,
 )
 from app.permissions import visible_org_teams
-from app.validators import OrgTeamSchema, TeamPlayerSchema, TeamStaffSchema
+from app.validators import NoteContentSchema, OrgTeamSchema, TeamPlayerSchema, TeamStaffSchema
 
 teams_bp = Blueprint('teams', __name__, url_prefix='/teams')
 
@@ -572,12 +572,16 @@ def add_team_note(team_id):
         flash(_('You do not have permission to add notes to this team.'), 'danger')
         return redirect(url_for('teams.list_teams'))
 
-    content = request.form.get('content', '').strip()
-    if content:
-        note = TeamNote(org_team_id=team_id, coach_id=current_user.id, content=content)
-        db.session.add(note)
-        db.session.commit()
-        flash(_('Team notes added successfully!'), 'success')
+    try:
+        data = NoteContentSchema().load(form_payload(list_fields=()))
+    except ValidationError as err:
+        flash_validation_errors(err)
+        return redirect(url_for('teams.list_teams'))
+
+    note = TeamNote(org_team_id=team_id, coach_id=current_user.id, content=data['content'])
+    db.session.add(note)
+    db.session.commit()
+    flash(_('Team notes added successfully!'), 'success')
     return redirect(url_for('teams.list_teams'))
 
 
@@ -603,10 +607,14 @@ def add_player_note(team_id, player_id):
         )
         return redirect(url_for('teams.list_teams'))
 
-    content = request.form.get('content', '').strip()
-    if content:
-        note = PersonalNote(player_id=player_id, coach_id=current_user.id, content=content)
-        db.session.add(note)
-        db.session.commit()
-        flash(_('Note added for %(username)s!', username=player.username), 'success')
+    try:
+        data = NoteContentSchema().load(form_payload(list_fields=()))
+    except ValidationError as err:
+        flash_validation_errors(err)
+        return redirect(url_for('teams.list_teams'))
+
+    note = PersonalNote(player_id=player_id, coach_id=current_user.id, content=data['content'])
+    db.session.add(note)
+    db.session.commit()
+    flash(_('Note added for %(username)s!', username=player.username), 'success')
     return redirect(url_for('teams.list_teams'))

app/routes/tryouts.py

@@ -10,6 +10,7 @@ from flask import Blueprint, abort, flash, redirect, render_template, request, u
 from flask_babel import gettext as _
 from flask_login import current_user, login_required
 from marshmallow import ValidationError
+from sqlalchemy import select
 
 from app.extensions import db
 from app.forms import flash_validation_errors, form_payload
@@ -32,7 +33,14 @@ from app.models import (
     TryoutRegistration,
     User,
 )
-from app.validators import PlayerSelectionSchema, TryoutSchema
+from app.validators import (
+    PlayerSelectionSchema,
+    TryoutRegistrationStatusSchema,
+    TryoutSchema,
+    TryoutStatusSchema,
+    TryoutTeamMemberSchema,
+    TryoutTeamSchema,
+)
 
 tryouts_bp = Blueprint('tryouts', __name__, url_prefix='/tryouts')
 
@@ -79,6 +87,25 @@ def _users_by_id(user_ids):
     return {user.id: user for user in User.query.filter(User.id.in_(wanted)).all()}
 
 
+def registration_lock_statement(tryout_id):
+    """The PostgreSQL row lock used by both registration entry points."""
+    return select(Tryout).where(Tryout.id == tryout_id).with_for_update()
+
+
+def locked_tryout_or_404(tryout_id):
+    """Load and row-lock a tryout while a registration slot is decided.
+
+    PostgreSQL serializes concurrent registration attempts on this row. The
+    duplicate check, capacity count and insert that follow therefore form
+    one decision instead of three independently racing statements. SQLite
+    ignores ``FOR UPDATE`` in tests, but production does not.
+    """
+    tryout = db.session.execute(registration_lock_statement(tryout_id)).scalar_one_or_none()
+    if tryout is None:
+        abort(404)
+    return tryout
+
+
 @tryouts_bp.route('')
 @login_required
 def list_tryouts():
@@ -406,10 +433,10 @@ def view_tryout(tryout_id):
 @login_required
 def register_for_tryout(tryout_id):
     """Register a player for a tryout. Only Players can self-register."""
-    tryout = Tryout.query.get_or_404(tryout_id)
     if not isinstance(current_user, Player):
         flash(_('Only players can register for tryouts.'), 'danger')
         return redirect(url_for('tryouts.view_tryout', tryout_id=tryout_id))
+    tryout = locked_tryout_or_404(tryout_id)
 
     if tryout.status not in ['upcoming', 'in_progress']:
         flash(_('This tryout is not accepting registrations.'), 'danger')
@@ -443,11 +470,15 @@ def update_status(tryout_id):
     if not current_user.can_manage_this_tryout(tryout):
         flash(_('Permission denied.'), 'danger')
         return redirect(url_for('tryouts.list_tryouts'))
-    new_status = request.form.get('status')
-    if new_status in ['upcoming', 'in_progress', 'completed']:
-        tryout.status = new_status
-        db.session.commit()
-        flash(_('Tryout status updated to %(new_status)s.', new_status=new_status), 'success')
+    try:
+        data = TryoutStatusSchema().load(form_payload(list_fields=()))
+    except ValidationError as err:
+        flash_validation_errors(err)
+        return redirect(url_for('tryouts.view_tryout', tryout_id=tryout_id))
+
+    tryout.status = data['status']
+    db.session.commit()
+    flash(_('Tryout status updated to %(new_status)s.', new_status=data['status']), 'success')
     return redirect(url_for('tryouts.view_tryout', tryout_id=tryout_id))
 
 
@@ -463,11 +494,15 @@ def update_registration_status(tryout_id, player_id):
     registration = TryoutRegistration.query.filter_by(
         tryout_id=tryout_id, player_id=player_id
     ).first_or_404()
-    new_status = request.form.get('status')
-    if new_status in ['registered', 'attended', 'no_show']:
-        registration.status = new_status
-        db.session.commit()
-        flash(_('Registration status updated.'), 'success')
+    try:
+        data = TryoutRegistrationStatusSchema().load(form_payload(list_fields=()))
+    except ValidationError as err:
+        flash_validation_errors(err)
+        return redirect(url_for('tryouts.view_tryout', tryout_id=tryout_id))
+
+    registration.status = data['status']
+    db.session.commit()
+    flash(_('Registration status updated.'), 'success')
     return redirect(url_for('tryouts.view_tryout', tryout_id=tryout_id))
 
 
@@ -475,7 +510,7 @@ def update_registration_status(tryout_id, player_id):
 @login_required
 def register_player(tryout_id):
     """Manually register a player for a tryout (by managers/coaches)."""
-    tryout = Tryout.query.get_or_404(tryout_id)
+    tryout = locked_tryout_or_404(tryout_id)
     if not current_user.can_manage_this_tryout(tryout):
         flash(_('Permission denied.'), 'danger')
         return redirect(url_for('tryouts.view_tryout', tryout_id=tryout_id))
@@ -563,12 +598,16 @@ def create_team(tryout_id):
         flash(_('Permission denied.'), 'danger')
         return redirect(url_for('tryouts.view_tryout', tryout_id=tryout_id))
 
-    team_name = request.form.get('team_name')
-    if team_name:
-        team = Team(tryout_id=tryout_id, name=team_name, created_by=current_user.id)
-        db.session.add(team)
-        db.session.commit()
-        flash(_('Team "%(team_name)s" created!', team_name=team_name), 'success')
+    try:
+        data = TryoutTeamSchema().load(form_payload(list_fields=()))
+    except ValidationError as err:
+        flash_validation_errors(err)
+        return redirect(url_for('tryouts.view_tryout', tryout_id=tryout_id))
+
+    team = Team(tryout_id=tryout_id, name=data['team_name'], created_by=current_user.id)
+    db.session.add(team)
+    db.session.commit()
+    flash(_('Team "%(team_name)s" created!', team_name=data['team_name']), 'success')
     return redirect(url_for('tryouts.view_tryout', tryout_id=tryout_id))
 
 
@@ -588,10 +627,12 @@ def add_to_team(tryout_id, team_id):
     if team.tryout_id != tryout_id:
         abort(404)
 
-    player_id = request.form.get('player_id', type=int)
-    if not player_id:
-        flash(_('Please select a player.'), 'danger')
+    try:
+        data = TryoutTeamMemberSchema().load(form_payload(list_fields=()))
+    except ValidationError as err:
+        flash_validation_errors(err)
         return redirect(url_for('tryouts.view_tryout', tryout_id=tryout_id))
+    player_id = data['player_id']
 
     # Only players registered for this tryout may be placed on its teams.
     is_registered = (
@@ -602,12 +643,11 @@ def add_to_team(tryout_id, team_id):
         flash(_('That player is not registered for this tryout.'), 'danger')
         return redirect(url_for('tryouts.view_tryout', tryout_id=tryout_id))
 
-    position = request.form.get('position', '')
     existing = TeamMember.query.filter_by(team_id=team_id, player_id=player_id).first()
     if existing:
         flash(_('Player is already on this team.'), 'info')
     else:
-        member = TeamMember(team_id=team_id, player_id=player_id, position=position)
+        member = TeamMember(team_id=team_id, player_id=player_id, position=data['position'])
         db.session.add(member)
         db.session.commit()
         flash(_('Player added to team!'), 'success')

app/routes/users/_shared.py

@@ -4,7 +4,6 @@ Nothing here touches the blueprint: these are plain functions, so a test
 can call them with a request context and nothing else.
 """
 
-from flask import request
 from flask_babel import gettext as _
 
 from app.extensions import db
@@ -13,7 +12,7 @@ from app.extensions import db
 # routes needed them as well (ARCH-005). Importing them from here still
 # works, so the thirty call sites in this package did not have to move.
 from app.forms import flash_validation_errors, form_payload  # noqa: F401
-from app.models import GAME_PLATFORMS, Admin, Coach, Manager, Player, Scout, UserGamertag
+from app.models import Admin, Coach, Manager, Player, Scout, UserGamertag
 
 ALLOWED_CONTRACT_EXTENSIONS = {'pdf'}
 ALLOWED_SIGNED_EXTENSIONS = {'pdf'}
@@ -63,20 +62,25 @@ def pdf_upload_error(file, allowed_extensions):
 
 
 def update_user_gamertags(user, selected_games):
-    """Update gamertags for a user based on form input."""
+    """Update gamertags for a user from validated dynamic form fields."""
+    from app.forms import form_gamertags
+
+    submitted = form_gamertags(selected_games)
     existing_gamertags = {gt.game: gt for gt in user.gamertags}
     for game in selected_games:
-        gamertag = request.form.get(f'gamertag_{game}', '').strip()
-        platform = (
-            request.form.get(f'platform_{game}', '').strip() if GAME_PLATFORMS.get(game) else None
-        )
+        payload = submitted.get(game)
         existing = existing_gamertags.get(game)
-        if gamertag:
+        if payload:
             if existing:
-                existing.gamertag = gamertag
-                existing.platform = platform
+                existing.gamertag = payload['gamertag']
+                existing.platform = payload['platform']
             else:
-                gt = UserGamertag(user_id=user.id, game=game, gamertag=gamertag, platform=platform)
+                gt = UserGamertag(
+                    user_id=user.id,
+                    game=game,
+                    gamertag=payload['gamertag'],
+                    platform=payload['platform'],
+                )
                 db.session.add(gt)
         elif existing:
             db.session.delete(existing)

app/routes/users/accounts.py

@@ -121,6 +121,12 @@ def edit_user(user_id):
             flash(_('This Discord account is already linked to another account.'), 'danger')
             return _rerender()
 
+        try:
+            update_user_gamertags(user, selected_games)
+        except ValidationError as err:
+            flash_validation_errors(err)
+            return _rerender()
+
         role_changed = user.role != role
         previous_role = user.role
 
@@ -183,8 +189,6 @@ def edit_user(user_id):
         user.discord_user_id = discord_user_id or None
         user.league_os_profile = league_os_profile or None
 
-        update_user_gamertags(user, selected_games)
-
         # Blank means "keep the current password"; anything else has already
         # been checked against the policy by the schema.
         password = validated.get('password')

app/routes/users/notes.py

@@ -7,23 +7,32 @@ it reads exactly what the coach routes write.
 from flask import flash, redirect, render_template, request, url_for
 from flask_babel import gettext as _
 from flask_login import current_user, login_required
+from marshmallow import ValidationError
 
 from app.extensions import db
+from app.forms import flash_validation_errors, form_payload
 from app.models import (
     Coach,
     Match,
     MatchParticipant,
     OneOnOneRequest,
-    OrgTeam,
     PersonalNote,
     Player,
+    Team,
+    TeamMember,
     TeamNote,
     Tryout,
     TryoutRegistration,
     User,
 )
-from app.permissions import coach_can_access_player, coach_org_teams, coach_player_ids
+from app.permissions import (
+    coach_can_access_player,
+    coach_org_teams,
+    coach_player_ids,
+    coach_tryouts,
+)
 from app.routes.users.blueprint import users_bp
+from app.validators import NoteContentSchema, PersonalNoteSchema
 
 
 @users_bp.route('/my-notes')
@@ -116,23 +125,25 @@ def notes_dashboard():
         )
 
     # For context selectors in the form
+    # PersonalNote.team_id references a tryout-local Team, not OrgTeam. The
+    # previous selector mixed the two namespaces and could either attach the
+    # note to an unrelated team with the same integer id or fail its FK.
+    # Every context list now comes from the tryouts this coach may manage.
+    tryouts = list(reversed(coach_tryouts(current_user)))[:20]
+    tryout_ids = [tryout.id for tryout in tryouts]
     matches = (
-        Match.query.filter(
-            db.or_(Match.created_by == current_user.id, Match.status == 'scheduled'),
-        )
+        Match.query.filter(Match.tryout_id.in_(tryout_ids))
         .order_by(Match.date.desc())
         .limit(20)
         .all()
+        if tryout_ids
+        else []
     )
-    tryouts = (
-        Tryout.query.filter_by(
-            created_by=current_user.id,
-        )
-        .order_by(Tryout.date.desc())
-        .limit(20)
-        .all()
+    teams = (
+        Team.query.filter(Team.tryout_id.in_(tryout_ids)).order_by(Team.name).all()
+        if tryout_ids
+        else []
     )
-    teams = OrgTeam.query.order_by(OrgTeam.name).all()
 
     return render_template(
         'pages/notes.html',
@@ -168,16 +179,20 @@ def manage_team_notes():
         return redirect(url_for('users.notes_dashboard'))
     org_team = org_teams[0]
 
-    content = request.form.get('content', '').strip()
-    if content:
-        note = TeamNote(
-            org_team_id=org_team.id,
-            coach_id=current_user.id,
-            content=content,
-        )
-        db.session.add(note)
-        db.session.commit()
-        flash(_('Team notes saved successfully!'), 'success')
+    try:
+        data = NoteContentSchema().load(form_payload(list_fields=()))
+    except ValidationError as err:
+        flash_validation_errors(err)
+        return redirect(url_for('users.notes_dashboard'))
+
+    note = TeamNote(
+        org_team_id=org_team.id,
+        coach_id=current_user.id,
+        content=data['content'],
+    )
+    db.session.add(note)
+    db.session.commit()
+    flash(_('Team notes saved successfully!'), 'success')
 
     return redirect(url_for('users.notes_dashboard'))
 
@@ -195,12 +210,12 @@ def manage_personal_notes():
         flash(_('Only coaches can manage personal notes.'), 'danger')
         return redirect(url_for('main.dashboard'))
 
-    player_id = request.form.get('player_id', type=int)
-    content = request.form.get('content', '').strip()
-
-    if not player_id or not content:
-        flash(_('Player and content are required.'), 'danger')
+    try:
+        data = PersonalNoteSchema().load(form_payload(list_fields=()))
+    except ValidationError as err:
+        flash_validation_errors(err)
         return redirect(url_for('users.notes_dashboard'))
+    player_id = data['player_id']
 
     player = User.query.get_or_404(player_id)
     if not isinstance(player, Player):
@@ -214,7 +229,7 @@ def manage_personal_notes():
     note = PersonalNote(
         player_id=player_id,
         coach_id=current_user.id,
-        content=content,
+        content=data['content'],
     )
     db.session.add(note)
     db.session.commit()
@@ -235,15 +250,12 @@ def add_personal_note():
         flash(_('Only coaches can add personal notes.'), 'danger')
         return redirect(url_for('main.dashboard'))
 
-    player_id = request.form.get('player_id', type=int)
-    content = request.form.get('content', '').strip()
-    match_id = request.form.get('match_id', type=int)
-    tryout_id = request.form.get('tryout_id', type=int)
-    team_id_str = request.form.get('team_id')
-
-    if not player_id or not content:
-        flash(_('Player and content are required.'), 'danger')
+    try:
+        data = PersonalNoteSchema().load(form_payload(list_fields=()))
+    except ValidationError as err:
+        flash_validation_errors(err)
         return redirect(url_for('users.notes_dashboard'))
+    player_id = data['player_id']
 
     player = User.query.get_or_404(player_id)
     if not isinstance(player, Player):
@@ -254,13 +266,40 @@ def add_personal_note():
         flash(_('You can only write notes about players you work with.'), 'danger')
         return redirect(url_for('users.notes_dashboard'))
 
+    if data['match_id']:
+        match = Match.query.get_or_404(data['match_id'])
+        if not current_user.can_manage_this_tryout(match.tryout):
+            flash(_('You cannot use that match as note context.'), 'danger')
+            return redirect(url_for('users.notes_dashboard'))
+        if not MatchParticipant.query.filter_by(match_id=match.id, player_id=player_id).first():
+            flash(_('That player did not participate in the selected match.'), 'danger')
+            return redirect(url_for('users.notes_dashboard'))
+
+    if data['tryout_id']:
+        tryout = Tryout.query.get_or_404(data['tryout_id'])
+        if not current_user.can_manage_this_tryout(tryout):
+            flash(_('You cannot use that tryout as note context.'), 'danger')
+            return redirect(url_for('users.notes_dashboard'))
+        if not TryoutRegistration.query.filter_by(tryout_id=tryout.id, player_id=player_id).first():
+            flash(_('That player is not registered for the selected tryout.'), 'danger')
+            return redirect(url_for('users.notes_dashboard'))
+
+    if data['team_id']:
+        team = Team.query.get_or_404(data['team_id'])
+        if not current_user.can_manage_this_tryout(team.tryout):
+            flash(_('You cannot use that team as note context.'), 'danger')
+            return redirect(url_for('users.notes_dashboard'))
+        if not TeamMember.query.filter_by(team_id=team.id, player_id=player_id).first():
+            flash(_('That player is not on the selected team.'), 'danger')
+            return redirect(url_for('users.notes_dashboard'))
+
     note = PersonalNote(
         player_id=player_id,
         coach_id=current_user.id,
-        content=content,
-        match_id=match_id if match_id else None,
-        tryout_id=tryout_id if tryout_id else None,
-        team_id=int(team_id_str) if team_id_str and team_id_str.isdigit() else None,
+        content=data['content'],
+        match_id=data['match_id'],
+        tryout_id=data['tryout_id'],
+        team_id=data['team_id'],
     )
     db.session.add(note)
     db.session.commit()
@@ -282,6 +321,9 @@ def add_note_from_tryout(tryout_id):
         return redirect(url_for('main.dashboard'))
 
     tryout = Tryout.query.get_or_404(tryout_id)
+    if not current_user.can_manage_this_tryout(tryout):
+        flash(_('You do not have permission to add notes for this tryout.'), 'danger')
+        return redirect(url_for('users.notes_dashboard'))
     preselected_player_id = request.args.get('player_id', type=int)
 
     # Get registrations as players for the select list
@@ -289,21 +331,29 @@ def add_note_from_tryout(tryout_id):
     players = [r.player for r in registrations if r.player]
 
     if request.method == 'POST':
-        player_id = request.form.get('player_id', type=int)
-        content = request.form.get('content', '').strip()
+        try:
+            data = PersonalNoteSchema().load(form_payload(list_fields=()))
+        except ValidationError as err:
+            flash_validation_errors(err)
+            return redirect(url_for('users.add_note_from_tryout', tryout_id=tryout_id))
+        player_id = data['player_id']
 
-        if not player_id or not content:
-            flash(_('Player and content are required.'), 'danger')
+        if data['tryout_id'] not in (None, tryout_id):
+            flash(_('Invalid tryout context.'), 'danger')
             return redirect(url_for('users.add_note_from_tryout', tryout_id=tryout_id))
 
         if not coach_can_access_player(current_user, player_id):
             flash(_('You can only write notes about players you work with.'), 'danger')
             return redirect(url_for('users.add_note_from_tryout', tryout_id=tryout_id))
 
+        if not TryoutRegistration.query.filter_by(tryout_id=tryout_id, player_id=player_id).first():
+            flash(_('That player is not registered for this tryout.'), 'danger')
+            return redirect(url_for('users.add_note_from_tryout', tryout_id=tryout_id))
+
         note = PersonalNote(
             player_id=player_id,
             coach_id=current_user.id,
-            content=content,
+            content=data['content'],
             tryout_id=tryout_id,
         )
         db.session.add(note)
@@ -335,6 +385,9 @@ def add_note_from_match(match_id):
         return redirect(url_for('main.dashboard'))
 
     match_obj = Match.query.get_or_404(match_id)
+    if not current_user.can_manage_this_tryout(match_obj.tryout):
+        flash(_('You do not have permission to add notes for this match.'), 'danger')
+        return redirect(url_for('users.notes_dashboard'))
 
     # Get participants as players for the select list
     participants = MatchParticipant.query.filter_by(match_id=match_id).all()
@@ -343,21 +396,29 @@ def add_note_from_match(match_id):
     preselected_player_id = request.args.get('player_id', type=int)
 
     if request.method == 'POST':
-        player_id = request.form.get('player_id', type=int)
-        content = request.form.get('content', '').strip()
+        try:
+            data = PersonalNoteSchema().load(form_payload(list_fields=()))
+        except ValidationError as err:
+            flash_validation_errors(err)
+            return redirect(url_for('users.add_note_from_match', match_id=match_id))
+        player_id = data['player_id']
 
-        if not player_id or not content:
-            flash(_('Player and content are required.'), 'danger')
+        if data['match_id'] not in (None, match_id):
+            flash(_('Invalid match context.'), 'danger')
             return redirect(url_for('users.add_note_from_match', match_id=match_id))
 
         if not coach_can_access_player(current_user, player_id):
             flash(_('You can only write notes about players you work with.'), 'danger')
             return redirect(url_for('users.add_note_from_match', match_id=match_id))
 
+        if not MatchParticipant.query.filter_by(match_id=match_id, player_id=player_id).first():
+            flash(_('That player did not participate in this match.'), 'danger')
+            return redirect(url_for('users.add_note_from_match', match_id=match_id))
+
         note = PersonalNote(
             player_id=player_id,
             coach_id=current_user.id,
-            content=content,
+            content=data['content'],
             match_id=match_id,
         )
         db.session.add(note)

app/routes/users/one_on_one.py

@@ -12,7 +12,7 @@ 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.validators import OneOnOneRequestSchema
+from app.validators import OneOnOneRejectionSchema, OneOnOneRequestSchema
 
 
 @users_bp.route('/one-on-one', methods=['GET', 'POST'])
@@ -226,7 +226,12 @@ def reject_one_on_one(request_id):
         flash(_('This request has already been processed.'), 'info')
         return redirect(url_for('users.notes_dashboard'))
 
-    rejection_reason = request.form.get('rejection_reason', '').strip()
+    try:
+        data = OneOnOneRejectionSchema().load(form_payload(list_fields=()))
+    except ValidationError as err:
+        flash_validation_errors(err)
+        return redirect(url_for('users.notes_dashboard'))
+    rejection_reason = data['rejection_reason']
     player = request_obj.player
 
     request_obj.status = 'rejected'

app/routes/users/profile.py

@@ -98,6 +98,18 @@ def edit_profile():
                 user_gamertags=current_user.get_gamertags(),
             )
 
+        try:
+            update_user_gamertags(current_user, selected_games)
+        except ValidationError as err:
+            flash_validation_errors(err)
+            return render_template(
+                'pages/edit_profile.html',
+                user=current_user,
+                esport_games=ESPORT_GAMES,
+                game_platforms=GAME_PLATFORMS,
+                user_gamertags=current_user.get_gamertags(),
+            )
+
         current_user.username = username
         current_user.full_name = full_name
         current_user.email = email
@@ -106,8 +118,6 @@ def edit_profile():
         current_user.discord_username = discord_username or None
         current_user.league_os_profile = league_os_profile or None
 
-        update_user_gamertags(current_user, selected_games)
-
         # Blank means "keep the current password"; anything else has already
         # been checked against the policy by the schema.
         password = validated.get('password')