app-MAIL-temp/app/dashboard/views/mailbox_detail.py

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from flask import render_template, request, redirect, url_for, flash
from flask_login import login_required, current_user
from flask_wtf import FlaskForm
from itsdangerous import Signer, BadSignature
from wtforms import validators
from wtforms.fields.html5 import EmailField
from app.config import MAILBOX_SECRET
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from app.config import URL
from app.dashboard.base import dashboard_bp
from app.email_utils import can_be_used_as_personal_email, email_already_used
from app.email_utils import mailbox_already_used, render, send_email
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from app.extensions import db
from app.log import LOG
from app.models import Alias, DeletedAlias
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from app.models import Mailbox
from app.pgp_utils import PGPException, load_public_key
from smtplib import SMTPRecipientsRefused
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class ChangeEmailForm(FlaskForm):
email = EmailField(
"email", validators=[validators.DataRequired(), validators.Email()]
)
@dashboard_bp.route("/mailbox/<int:mailbox_id>/", methods=["GET", "POST"])
@login_required
def mailbox_detail_route(mailbox_id):
mailbox = Mailbox.get(mailbox_id)
if not mailbox or mailbox.user_id != current_user.id:
flash("You cannot see this page", "warning")
return redirect(url_for("dashboard.index"))
change_email_form = ChangeEmailForm()
if mailbox.new_email:
pending_email = mailbox.new_email
else:
pending_email = None
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if request.method == "POST":
if (
request.form.get("form-name") == "update-email"
and change_email_form.validate_on_submit()
):
new_email = change_email_form.email.data
if new_email != mailbox.email and not pending_email:
# check if this email is not already used
if (
mailbox_already_used(new_email, current_user)
or Alias.get_by(email=new_email)
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or DeletedAlias.get_by(email=new_email)
):
flash(f"Email {new_email} already used", "error")
elif not can_be_used_as_personal_email(new_email):
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flash("You cannot use this email address as your mailbox", "error")
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else:
mailbox.new_email = new_email
db.session.commit()
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s = Signer(MAILBOX_SECRET)
mailbox_id_signed = s.sign(str(mailbox.id)).decode()
verification_url = (
URL
+ "/dashboard/mailbox/confirm_change"
+ f"?mailbox_id={mailbox_id_signed}"
)
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try:
send_email(
new_email,
f"Confirm mailbox change on SimpleLogin",
render(
"transactional/verify-mailbox-change.txt",
user=current_user,
link=verification_url,
mailbox_email=mailbox.email,
mailbox_new_email=new_email,
),
render(
"transactional/verify-mailbox-change.html",
user=current_user,
link=verification_url,
mailbox_email=mailbox.email,
mailbox_new_email=new_email,
),
)
except SMTPRecipientsRefused:
flash(
f"Incorrect mailbox, please recheck {mailbox.email}",
"error",
)
else:
flash(
f"You are going to receive an email to confirm {new_email}.",
"success",
)
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return redirect(
url_for("dashboard.mailbox_detail_route", mailbox_id=mailbox_id)
)
elif request.form.get("form-name") == "pgp":
if request.form.get("action") == "save":
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if not current_user.is_premium():
flash("Only premium plan can add PGP Key", "warning")
return redirect(
url_for("dashboard.mailbox_detail_route", mailbox_id=mailbox_id)
)
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mailbox.pgp_public_key = request.form.get("pgp")
try:
mailbox.pgp_finger_print = load_public_key(mailbox.pgp_public_key)
except PGPException:
flash("Cannot add the public key, please verify it", "error")
else:
db.session.commit()
flash("Your PGP public key is saved successfully", "success")
return redirect(
url_for("dashboard.mailbox_detail_route", mailbox_id=mailbox_id)
)
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elif request.form.get("action") == "remove":
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# Free user can decide to remove their added PGP key
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mailbox.pgp_public_key = None
mailbox.pgp_finger_print = None
db.session.commit()
flash("Your PGP public key is removed successfully", "success")
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return redirect(
url_for("dashboard.mailbox_detail_route", mailbox_id=mailbox_id)
)
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return render_template("dashboard/mailbox_detail.html", **locals())
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@dashboard_bp.route(
"/mailbox/<int:mailbox_id>/cancel_email_change", methods=["GET", "POST"]
)
@login_required
def cancel_mailbox_change_route(mailbox_id):
mailbox = Mailbox.get(mailbox_id)
if not mailbox or mailbox.user_id != current_user.id:
flash("You cannot see this page", "warning")
return redirect(url_for("dashboard.index"))
if mailbox.new_email:
mailbox.new_email = None
db.session.commit()
flash("Your mailbox change is cancelled", "success")
return redirect(
url_for("dashboard.mailbox_detail_route", mailbox_id=mailbox_id)
)
else:
flash("You have no pending mailbox change", "warning")
return redirect(
url_for("dashboard.mailbox_detail_route", mailbox_id=mailbox_id)
)
@dashboard_bp.route("/mailbox/confirm_change")
def mailbox_confirm_change_route():
s = Signer(MAILBOX_SECRET)
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mailbox_id = request.args.get("mailbox_id")
try:
r_id = int(s.unsign(mailbox_id))
except Exception:
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flash("Invalid link", "error")
return redirect(url_for("dashboard.index"))
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else:
mailbox = Mailbox.get(r_id)
# new_email can be None if user cancels change in the meantime
if mailbox and mailbox.new_email:
mailbox.email = mailbox.new_email
mailbox.new_email = None
# mark mailbox as verified if the change request is sent from an unverified mailbox
mailbox.verified = True
db.session.commit()
LOG.d("Mailbox change %s is verified", mailbox)
flash(f"The {mailbox.email} is updated", "success")
return redirect(
url_for("dashboard.mailbox_detail_route", mailbox_id=mailbox.id)
)
else:
flash("Invalid link", "error")
return redirect(url_for("dashboard.index"))