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

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import re
from email.utils import parseaddr
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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 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
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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 <ab@cd.com>
"""
message = "Invalid email format. Email must be either email@example.com or *First Last <email@example.com>*"
def _check(form, field):
email = field.data
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email = email.strip()
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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/<alias_id>/", methods=["GET", "POST"])
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@dashboard_bp.route(
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"/alias_contact_manager/<alias_id>/<contact_id>", methods=["GET", "POST"]
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)
@login_required
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def alias_contact_manager(alias_id, contact_id=None):
alias = Alias.get(alias_id)
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# sanity check
if not alias:
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flash("You do not have access to this page", "warning")
return redirect(url_for("dashboard.index"))
if alias.user_id != current_user.id:
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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():
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contact_email = new_contact_form.email.data.strip()
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# generate a reply_email, make sure it is unique
# not use while to avoid infinite loop
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reply_email = f"ra+{random_string(25)}@{EMAIL_DOMAIN}"
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for _ in range(1000):
reply_email = f"ra+{random_string(25)}@{EMAIL_DOMAIN}"
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if not Contact.get_by(reply_email=reply_email):
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break
_, website_email = parseaddr(contact_email)
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# already been added
if Contact.get_by(gen_email_id=alias.id, website_email=website_email):
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flash(f"{website_email} is already added", "error")
return redirect(
url_for("dashboard.alias_contact_manager", alias_id=alias_id)
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)
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contact = Contact.create(
gen_email_id=alias.id,
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website_email=website_email,
website_from=contact_email,
reply_email=reply_email,
)
LOG.d("create reverse-alias for %s", contact_email)
db.session.commit()
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flash(f"Reverse alias for {contact_email} is created", "success")
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return redirect(
url_for(
"dashboard.alias_contact_manager",
alias_id=alias_id,
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contact_id=contact.id,
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)
)
elif request.form.get("form-name") == "delete":
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contact_id = request.form.get("contact-id")
contact = Contact.get(contact_id)
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if not contact:
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flash("Unknown error. Refresh the page", "warning")
return redirect(
url_for("dashboard.alias_contact_manager", alias_id=alias_id)
)
elif contact.gen_email_id != alias.id:
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flash("You cannot delete reverse-alias", "warning")
return redirect(
url_for("dashboard.alias_contact_manager", alias_id=alias_id)
)
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contact_name = contact.website_from
Contact.delete(contact_id)
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db.session.commit()
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flash(f"Reverse-alias for {contact_name} has been deleted", "success")
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return redirect(
url_for("dashboard.alias_contact_manager", alias_id=alias_id)
)
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# make sure highlighted contact is at array start
contacts = alias.contacts
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if contact_id:
contacts = sorted(contacts, key=lambda fe: fe.id == contact_id, reverse=True)
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return render_template(
"dashboard/alias_contact_manager.html",
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contacts=contacts,
alias=alias,
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new_contact_form=new_contact_form,
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contact_id=contact_id,
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)