import re from email.utils import parseaddr from flask import render_template, request, redirect, url_for, flash from flask_login import login_required, current_user from flask_wtf import FlaskForm from wtforms import StringField, validators, ValidationError from app.config import EMAIL_DOMAIN from app.dashboard.base import dashboard_bp from app.extensions import db from app.log import LOG from app.models import Alias, Contact from app.utils import random_string def email_validator(): """validate email address. Handle both only email and email with name: - ab@cd.com - AB CD """ message = "Invalid email format. Email must be either email@example.com or *First Last *" def _check(form, field): email = field.data email = email.strip() email_part = email if "<" in email and ">" in email: if email.find("<") + 1 < email.find(">"): email_part = email[email.find("<") + 1 : email.find(">")].strip() if re.match(r"^[A-Za-z0-9\.\+_-]+@[A-Za-z0-9\._-]+\.[a-zA-Z]*$", email_part): return raise ValidationError(message) return _check class NewContactForm(FlaskForm): email = StringField( "Email", validators=[validators.DataRequired(), email_validator()] ) @dashboard_bp.route("/alias_contact_manager//", methods=["GET", "POST"]) @dashboard_bp.route( "/alias_contact_manager//", methods=["GET", "POST"] ) @login_required def alias_contact_manager(alias_id, contact_id=None): alias = Alias.get(alias_id) # sanity check if not alias: flash("You do not have access to this page", "warning") return redirect(url_for("dashboard.index")) if alias.user_id != current_user.id: flash("You do not have access to this page", "warning") return redirect(url_for("dashboard.index")) new_contact_form = NewContactForm() if request.method == "POST": if request.form.get("form-name") == "create": if new_contact_form.validate(): contact_email = new_contact_form.email.data.strip() # generate a reply_email, make sure it is unique # not use while to avoid infinite loop reply_email = f"ra+{random_string(25)}@{EMAIL_DOMAIN}" for _ in range(1000): reply_email = f"ra+{random_string(25)}@{EMAIL_DOMAIN}" if not Contact.get_by(reply_email=reply_email): break _, website_email = parseaddr(contact_email) # already been added if Contact.get_by(alias_id=alias.id, website_email=website_email): flash(f"{website_email} is already added", "error") return redirect( url_for("dashboard.alias_contact_manager", alias_id=alias_id) ) contact = Contact.create( user_id=alias.user_id, alias_id=alias.id, website_email=website_email, website_from=contact_email, reply_email=reply_email, ) LOG.d("create reverse-alias for %s", contact_email) db.session.commit() flash(f"Reverse alias for {contact_email} is created", "success") return redirect( url_for( "dashboard.alias_contact_manager", alias_id=alias_id, contact_id=contact.id, ) ) elif request.form.get("form-name") == "delete": contact_id = request.form.get("contact-id") contact = Contact.get(contact_id) if not contact: flash("Unknown error. Refresh the page", "warning") return redirect( url_for("dashboard.alias_contact_manager", alias_id=alias_id) ) elif contact.alias_id != alias.id: flash("You cannot delete reverse-alias", "warning") return redirect( url_for("dashboard.alias_contact_manager", alias_id=alias_id) ) contact_name = contact.website_from Contact.delete(contact_id) db.session.commit() flash(f"Reverse-alias for {contact_name} has been deleted", "success") return redirect( url_for("dashboard.alias_contact_manager", alias_id=alias_id) ) # make sure highlighted contact is at array start contacts = alias.contacts if contact_id: contacts = sorted(contacts, key=lambda fe: fe.id == contact_id, reverse=True) return render_template( "dashboard/alias_contact_manager.html", contacts=contacts, alias=alias, new_contact_form=new_contact_form, contact_id=contact_id, )