canaille-globuzma/canaille/core/account.py

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import datetime
import io
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from dataclasses import astuple
from dataclasses import dataclass
from typing import List
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import pkg_resources
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import wtforms
from canaille.utils import b64_to_obj
from canaille.utils import default_fields
from canaille.utils import login_placeholder
from canaille.utils import obj_to_b64
from canaille.utils import profile_hash
from canaille.utils.flask import current_user
from canaille.utils.flask import permissions_needed
from canaille.utils.flask import render_htmx_template
from canaille.utils.flask import request_is_htmx
from canaille.utils.flask import smtp_needed
from canaille.utils.flask import user_needed
from canaille.utils.forms import TableForm
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from flask import abort
from flask import Blueprint
from flask import current_app
from flask import flash
from flask import redirect
from flask import request
from flask import send_file
from flask import session
from flask import url_for
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from flask_babel import gettext as _
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from flask_babel import refresh
from flask_themer import render_template
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from werkzeug.datastructures import CombinedMultiDict
from werkzeug.datastructures import FileStorage
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from .forms import FirstLoginForm
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from .forms import ForgottenPasswordForm
from .forms import InvitationForm
from .forms import LoginForm
from .forms import PasswordForm
from .forms import PasswordResetForm
from .forms import profile_form
from .mails import send_invitation_mail
from .mails import send_password_initialization_mail
from .mails import send_password_reset_mail
from .models import Group
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from .models import User
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bp = Blueprint("account", __name__)
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@bp.context_processor
def global_processor():
return {
"has_password_recovery": current_app.config.get(
"ENABLE_PASSWORD_RECOVERY", True
),
}
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@bp.route("/")
def index():
user = current_user()
if not user:
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return redirect(url_for("account.login"))
if user.can_edit_self or user.can_manage_users:
return redirect(
url_for("account.profile_edition", username=current_user().user_name[0])
)
if user.can_use_oidc:
return redirect(url_for("oidc.consents.consents"))
return redirect(url_for("account.about"))
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@bp.route("/about")
def about():
try:
version = pkg_resources.get_distribution("canaille").version
except pkg_resources.DistributionNotFound: # pragma: no cover
version = "git"
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return render_template("about.html", version=version)
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@bp.route("/login", methods=("GET", "POST"))
def login():
if current_user():
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return redirect(
url_for("account.profile_edition", username=current_user().user_name[0])
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)
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form = LoginForm(request.form or None)
form["login"].render_kw["placeholder"] = login_placeholder()
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if request.form:
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user = User.get_from_login(form.login.data)
if user and not user.has_password():
return redirect(url_for("account.firstlogin", user_name=user.user_name[0]))
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if not form.validate():
User.logout()
flash(_("Login failed, please check your information"), "error")
return render_template("login.html", form=form)
session["attempt_login"] = form.login.data
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return redirect(url_for("account.password"))
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return render_template("login.html", form=form)
@bp.route("/password", methods=("GET", "POST"))
def password():
if "attempt_login" not in session:
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return redirect(url_for("account.login"))
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form = PasswordForm(request.form or None)
if request.form:
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user = User.get_from_login(session["attempt_login"])
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if user and not user.has_password():
return redirect(url_for("account.firstlogin", user_name=user.user_name[0]))
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if not form.validate() or not User.authenticate(
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session["attempt_login"], form.password.data, True
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):
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User.logout()
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flash(_("Login failed, please check your information"), "error")
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return render_template(
"password.html", form=form, username=session["attempt_login"]
)
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del session["attempt_login"]
flash(
_("Connection successful. Welcome %(user)s", user=user.formatted_name[0]),
"success",
)
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return redirect(url_for("account.index"))
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return render_template(
"password.html", form=form, username=session["attempt_login"]
)
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@bp.route("/logout")
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def logout():
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user = current_user()
if user:
flash(
_(
"You have been disconnected. See you next time %(user)s",
user=user.formatted_name[0],
),
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"success",
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)
user.logout()
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return redirect("/")
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@bp.route("/firstlogin/<user_name>", methods=("GET", "POST"))
def firstlogin(user_name):
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user = User.get_from_login(user_name)
if not user or user.has_password():
abort(404)
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form = FirstLoginForm(request.form or None)
if not request.form:
return render_template("firstlogin.html", form=form, user_name=user_name)
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form.validate()
if send_password_initialization_mail(user):
flash(
_(
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"A password initialization link has been sent at your email address. You should receive it within a few minutes."
),
"success",
)
else:
flash(_("Could not send the password initialization email"), "error")
return render_template("firstlogin.html", form=form, user_name=user_name)
@bp.route("/users", methods=["GET", "POST"])
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@permissions_needed("manage_users")
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def users(user):
table_form = TableForm(User, fields=user.read | user.write, formdata=request.form)
if request.form and not table_form.validate():
abort(404)
return render_htmx_template(
"users.html",
menuitem="users",
table_form=table_form,
)
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@dataclass
class Invitation:
creation_date_isoformat: str
user_name: str
user_name_editable: bool
email: str
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groups: List[str]
@property
def creation_date(self):
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return datetime.datetime.fromisoformat(self.creation_date_isoformat)
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def has_expired(self):
DEFAULT_INVITATION_DURATION = 2 * 24 * 60 * 60
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return datetime.datetime.now(
datetime.timezone.utc
) - self.creation_date > datetime.timedelta(
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seconds=current_app.config.get(
"INVITATION_EXPIRATION", DEFAULT_INVITATION_DURATION
)
)
def b64(self):
return obj_to_b64(astuple(self))
def profile_hash(self):
return profile_hash(*astuple(self))
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@bp.route("/invite", methods=["GET", "POST"])
@smtp_needed()
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@permissions_needed("manage_users")
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def user_invitation(user):
form = InvitationForm(request.form or None)
email_sent = None
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registration_url = None
form_validated = False
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if request.form and form.validate():
form_validated = True
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invitation = Invitation(
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datetime.datetime.now(datetime.timezone.utc).isoformat(),
form.user_name.data,
form.user_name_editable.data,
form.email.data,
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form.groups.data,
)
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registration_url = url_for(
"account.registration",
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data=invitation.b64(),
hash=invitation.profile_hash(),
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_external=True,
)
if request.form["action"] == "send":
email_sent = send_invitation_mail(form.email.data, registration_url)
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return render_template(
"invite.html",
form=form,
menuitems="users",
form_validated=form_validated,
email_sent=email_sent,
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registration_url=registration_url,
)
@bp.route("/register/<data>/<hash>", methods=["GET", "POST"])
def registration(data, hash):
try:
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invitation = Invitation(*b64_to_obj(data))
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except:
flash(
_("The invitation link that brought you here was invalid."),
"error",
)
return redirect(url_for("account.index"))
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if invitation.has_expired():
flash(
_("The invitation link that brought you here has expired."),
"error",
)
return redirect(url_for("account.index"))
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if User.get_from_login(invitation.user_name):
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flash(
_("Your account has already been created."),
"error",
)
return redirect(url_for("account.index"))
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if current_user():
flash(
_("You are already logged in, you cannot create an account."),
"error",
)
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return redirect(url_for("account.index"))
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if hash != invitation.profile_hash():
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flash(
_("The invitation link that brought you here was invalid."),
"error",
)
return redirect(url_for("account.index"))
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data = {
"user_name": invitation.user_name,
"email": invitation.email,
"groups": invitation.groups,
}
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readable_fields, writable_fields = default_fields()
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form = profile_form(writable_fields, readable_fields)
if "groups" not in form and invitation.groups:
form["groups"] = wtforms.SelectMultipleField(
_("Groups"),
choices=[(group.id, group.display_name) for group in Group.query()],
render_kw={"readonly": "true"},
)
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form.process(CombinedMultiDict((request.files, request.form)) or None, data=data)
if "readonly" in form["user_name"].render_kw and invitation.user_name_editable:
del form["user_name"].render_kw["readonly"]
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form["password1"].validators = [
wtforms.validators.DataRequired(),
wtforms.validators.Length(min=8),
]
form["password2"].validators = [
wtforms.validators.DataRequired(),
wtforms.validators.Length(min=8),
]
form["password1"].flags.required = True
form["password2"].flags.required = True
if request.form:
if not form.validate():
flash(_("User account creation failed."), "error")
else:
user = profile_create(current_app, form)
user.login()
flash(_("Your account has been created successfuly."), "success")
return redirect(
url_for("account.profile_edition", username=user.user_name[0])
)
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return render_template(
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"profile_add.html",
form=form,
menuitem="users",
edited_user=None,
self_deletion=False,
)
@bp.route("/profile", methods=("GET", "POST"))
@permissions_needed("manage_users")
def profile_creation(user):
form = profile_form(user.write, user.read)
form.process(CombinedMultiDict((request.files, request.form)) or None)
for field in form:
if field.render_kw and "readonly" in field.render_kw:
del field.render_kw["readonly"]
if request.form:
if not form.validate():
flash(_("User account creation failed."), "error")
else:
user = profile_create(current_app, form)
return redirect(
url_for("account.profile_edition", username=user.user_name[0])
)
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return render_template(
"profile_add.html",
form=form,
menuitem="users",
edited_user=None,
self_deletion=False,
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)
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def profile_create(current_app, form):
user = User()
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for attribute in form:
if attribute.name in user.attribute_table:
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if isinstance(attribute.data, FileStorage):
data = attribute.data.stream.read()
else:
data = attribute.data
user[attribute.name] = data
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if "photo" in form and form["photo_delete"].data:
user["photo"] = None
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user.formatted_name = [f"{user.given_name[0]} {user.family_name[0]}".strip()]
user.save()
if "groups" in form:
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groups = [Group.get(group_id) for group_id in form["groups"].data]
for group in groups:
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group.members = group.members + [user]
group.save()
if form["password1"].data:
user.set_password(form["password1"].data)
flash(_("User account creation succeed."), "success")
user.save()
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return user
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@bp.route("/profile/<username>", methods=("GET", "POST"))
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@user_needed()
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def profile_edition(user, username):
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editor = user
if not user.can_manage_users and not (
user.can_edit_self and username == user.user_name[0]
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):
abort(403)
menuitem = "profile" if username == editor.user_name[0] else "users"
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fields = editor.read | editor.write
if username != editor.user_name[0]:
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user = User.get_from_login(username)
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else:
user = editor
if not user:
abort(404)
available_fields = {
"formatted_name",
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"title",
"given_name",
"family_name",
"display_name",
"email",
"phone_number",
"formatted_address",
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"street",
"postal_code",
"locality",
"region",
"photo",
"photo_delete",
"employee_number",
"department",
"profile_url",
"preferred_language",
"organization",
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}
data = {
k: getattr(user, k)[0]
if getattr(user, k) and isinstance(getattr(user, k), list)
else getattr(user, k) or ""
for k in fields
if hasattr(user, k) and k in available_fields
}
form = profile_form(
editor.write & available_fields, editor.read & available_fields, user
)
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form.process(CombinedMultiDict((request.files, request.form)) or None, data=data)
if request.form:
if not form.validate():
flash(_("Profile edition failed."), "error")
else:
for attribute in form:
if (
attribute.name in user.attribute_table
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and attribute.name in editor.write
):
if isinstance(attribute.data, FileStorage):
data = attribute.data.stream.read()
else:
data = attribute.data
user[attribute.name] = data
if "photo" in form and form["photo_delete"].data:
user["photo"] = None
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if "preferred_language" in request.form:
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# Refresh the babel cache in case the lang is updated
refresh()
if form["preferred_language"].data == "auto":
user.preferred_language = None
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user.save()
flash(_("Profile updated successfuly."), "success")
return redirect(url_for("account.profile_edition", username=username))
return render_template(
"profile_edit.html",
form=form,
menuitem=menuitem,
edited_user=user,
)
@bp.route("/profile/<username>/settings", methods=("GET", "POST"))
@user_needed()
def profile_settings(user, username):
if not user.can_manage_users and not (
user.can_edit_self and username == user.user_name[0]
):
abort(403)
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edited_user = User.get_from_login(username)
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if not edited_user:
abort(404)
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if (
request.method == "GET"
or request.form.get("action") == "edit"
or request_is_htmx()
):
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return profile_settings_edit(user, edited_user)
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if request.form.get("action") == "delete":
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return profile_delete(user, edited_user)
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if request.form.get("action") == "password-initialization-mail":
if send_password_initialization_mail(user):
flash(
_(
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"A password initialization link has been sent at the user email address. It should be received within a few minutes."
),
"success",
)
else:
flash(_("Could not send the password initialization email"), "error")
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return profile_settings_edit(user, edited_user)
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if request.form.get("action") == "password-reset-mail":
if send_password_reset_mail(user):
flash(
_(
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"A password reset link has been sent at the user email address. It should be received within a few minutes."
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),
"success",
)
else:
flash(_("Could not send the password reset email"), "error")
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return profile_settings_edit(user, edited_user)
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abort(400)
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def profile_settings_edit(editor, edited_user):
menuitem = "profile" if editor.id == editor.id else "users"
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fields = editor.read | editor.write
available_fields = {"password", "groups", "user_name"}
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data = {
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k: getattr(edited_user, k)[0]
if getattr(edited_user, k) and isinstance(getattr(edited_user, k), list)
else getattr(edited_user, k) or ""
for k in fields
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if hasattr(edited_user, k) and k in available_fields
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}
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if "groups" in fields:
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data["groups"] = [g.id for g in edited_user.groups]
form = profile_form(
editor.write & available_fields, editor.read & available_fields, edited_user
)
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form.process(CombinedMultiDict((request.files, request.form)) or None, data=data)
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if request.form and request.form.get("action") == "edit" or request_is_htmx():
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if not form.validate():
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flash(_("Profile edition failed."), "error")
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else:
for attribute in form:
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if attribute.name == "groups" and "groups" in editor.write:
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edited_user.groups = attribute.data
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if (
"password1" in request.form
and form["password1"].data
and request.form["action"] == "edit"
):
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edited_user.set_password(form["password1"].data)
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edited_user.save()
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flash(_("Profile updated successfuly."), "success")
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return redirect(
url_for("account.profile_edition", username=edited_user.user_name[0])
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)
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return render_template(
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"profile_settings.html",
form=form,
menuitem=menuitem,
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edited_user=edited_user,
self_deletion=edited_user.can_delete_account,
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)
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def profile_delete(user, edited_user):
self_deletion = user.id == edited_user.id
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if self_deletion:
user.logout()
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flash(
_(
"The user %(user)s has been sucessfuly deleted",
user=edited_user.formatted_name[0],
),
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"success",
)
edited_user.delete()
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if self_deletion:
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return redirect(url_for("account.index"))
return redirect(url_for("account.users"))
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@bp.route("/impersonate/<username>")
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@permissions_needed("impersonate_users")
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def impersonate(user, username):
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puppet = User.get_from_login(username)
if not puppet:
abort(404)
puppet.login()
flash(_("Connection successful. Welcome %(user)s", user=puppet.name), "success")
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return redirect(url_for("account.index"))
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@bp.route("/reset", methods=["GET", "POST"])
@smtp_needed()
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def forgotten():
if not current_app.config.get("ENABLE_PASSWORD_RECOVERY", True):
abort(404)
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form = ForgottenPasswordForm(request.form)
if not request.form:
return render_template("forgotten-password.html", form=form)
if not form.validate():
flash(_("Could not send the password reset link."), "error")
return render_template("forgotten-password.html", form=form)
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user = User.get_from_login(form.login.data)
success_message = _(
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"A password reset link has been sent at your email address. You should receive it within a few minutes."
)
if current_app.config.get("HIDE_INVALID_LOGINS", True) and (
not user or not user.can_edit_self
):
flash(success_message, "success")
return render_template("forgotten-password.html", form=form)
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if not user.can_edit_self:
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flash(
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_(
"The user '%(user)s' does not have permissions to update their password. "
"We cannot send a password reset email.",
user=user.formatted_name[0],
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),
"error",
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)
return render_template("forgotten-password.html", form=form)
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success = send_password_reset_mail(user)
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if success:
flash(success_message, "success")
else:
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flash(
_("We encountered an issue while we sent the password recovery email."),
"error",
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)
return render_template("forgotten-password.html", form=form)
@bp.route("/reset/<user_name>/<hash>", methods=["GET", "POST"])
def reset(user_name, hash):
if not current_app.config.get("ENABLE_PASSWORD_RECOVERY", True):
abort(404)
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form = PasswordResetForm(request.form)
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user = User.get_from_login(user_name)
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if not user or hash != profile_hash(
user.user_name[0],
user.email[0],
user.password[0] if user.has_password() else "",
):
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flash(
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_("The password reset link that brought you here was invalid."),
"error",
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)
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return redirect(url_for("account.index"))
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if request.form and form.validate():
user.set_password(form.password.data)
user.login()
flash(_("Your password has been updated successfuly"), "success")
return redirect(url_for("account.profile_edition", username=user_name))
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return render_template(
"reset-password.html", form=form, user_name=user_name, hash=hash
)
@bp.route("/profile/<user_name>/<field>")
def photo(user_name, field):
if field.lower() != "photo":
abort(404)
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user = User.get_from_login(user_name)
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if not user:
abort(404)
etag = None
if request.if_modified_since and request.if_modified_since >= user.last_modified:
return "", 304
etag = profile_hash(user_name, user.last_modified.isoformat())
if request.if_none_match and etag in request.if_none_match:
return "", 304
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photos = getattr(user, field)
if not photos:
abort(404)
stream = io.BytesIO(photos[0])
return send_file(
stream, mimetype="image/jpeg", last_modified=user.last_modified, etag=etag
)