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

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from dataclasses import dataclass
from operator import or_
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from flask import render_template, request, redirect, flash
from flask import url_for
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from flask_login import login_required, current_user
from flask_wtf import FlaskForm
from sqlalchemy import and_, func, case
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from wtforms import StringField, validators, ValidationError
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from app.config import PAGE_LIMIT
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from app.dashboard.base import dashboard_bp
from app.email_utils import (
parseaddr_unicode,
is_valid_email,
generate_reply_email,
)
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from app.extensions import db
from app.log import LOG
from app.models import Alias, Contact, EmailLog
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from app.utils import sanitize_email
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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()
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if not is_valid_email(email_part):
raise ValidationError(message)
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return _check
class NewContactForm(FlaskForm):
email = StringField(
"Email", validators=[validators.DataRequired(), email_validator()]
)
@dataclass
class ContactInfo(object):
contact: Contact
nb_forward: int
nb_reply: int
latest_email_log: EmailLog
def get_contact_infos(alias: Alias, page=0, contact_id=None) -> [ContactInfo]:
"""if contact_id is set, only return the contact info for this contact"""
sub = (
db.session.query(
Contact.id,
func.sum(case([(EmailLog.is_reply, 1)], else_=0)).label("nb_reply"),
func.sum(
case(
[
(
and_(
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EmailLog.is_reply.is_(False),
EmailLog.blocked.is_(False),
),
1,
)
],
else_=0,
)
).label("nb_forward"),
func.max(EmailLog.created_at).label("max_email_log_created_at"),
)
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.join(
EmailLog,
EmailLog.contact_id == Contact.id,
isouter=True,
)
.filter(Contact.alias_id == alias.id)
.group_by(Contact.id)
.subquery()
)
q = (
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db.session.query(
Contact,
EmailLog,
sub.c.nb_reply,
sub.c.nb_forward,
)
.join(
EmailLog,
EmailLog.contact_id == Contact.id,
isouter=True,
)
.filter(Contact.alias_id == alias.id)
.filter(Contact.id == sub.c.id)
.filter(
or_(
EmailLog.created_at == sub.c.max_email_log_created_at,
# no email log yet for this contact
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sub.c.max_email_log_created_at.is_(None),
)
)
)
if contact_id:
q = q.filter(Contact.id == contact_id)
latest_activity = case(
[
(EmailLog.created_at > Contact.created_at, EmailLog.created_at),
(EmailLog.created_at < Contact.created_at, Contact.created_at),
],
else_=Contact.created_at,
)
q = q.order_by(latest_activity.desc()).limit(PAGE_LIMIT).offset(page * PAGE_LIMIT)
ret = []
for contact, latest_email_log, nb_reply, nb_forward in q:
contact_info = ContactInfo(
contact=contact,
nb_forward=nb_forward,
nb_reply=nb_reply,
latest_email_log=latest_email_log,
)
ret.append(contact_info)
return ret
@dashboard_bp.route("/alias_contact_manager/<alias_id>/", methods=["GET", "POST"])
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@login_required
def alias_contact_manager(alias_id):
highlight_contact_id = None
if request.args.get("highlight_contact_id"):
highlight_contact_id = int(request.args.get("highlight_contact_id"))
alias = Alias.get(alias_id)
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page = 0
if request.args.get("page"):
page = int(request.args.get("page"))
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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():
contact_addr = new_contact_form.email.data.strip()
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try:
contact_name, contact_email = parseaddr_unicode(contact_addr)
contact_email = sanitize_email(contact_email)
except Exception:
flash(f"{contact_addr} is invalid", "error")
return redirect(
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url_for(
"dashboard.alias_contact_manager",
alias_id=alias_id,
)
)
if not is_valid_email(contact_email):
flash(f"{contact_email} is invalid", "error")
return redirect(
url_for(
"dashboard.alias_contact_manager",
alias_id=alias_id,
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)
)
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contact = Contact.get_by(alias_id=alias.id, website_email=contact_email)
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# already been added
if contact:
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flash(f"{contact_email} is already added", "error")
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return redirect(
url_for(
"dashboard.alias_contact_manager",
alias_id=alias_id,
highlight_contact_id=contact.id,
)
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)
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contact = Contact.create(
user_id=alias.user_id,
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alias_id=alias.id,
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website_email=contact_email,
name=contact_name,
reply_email=generate_reply_email(contact_email, current_user),
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)
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LOG.d("create reverse-alias for %s", contact_addr)
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db.session.commit()
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flash(f"Reverse alias for {contact_addr} is created", "success")
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return redirect(
url_for(
"dashboard.alias_contact_manager",
alias_id=alias_id,
highlight_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)
)
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elif contact.alias_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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delete_contact_email = contact.website_email
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Contact.delete(contact_id)
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db.session.commit()
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flash(
f"Reverse-alias for {delete_contact_email} has been deleted", "success"
)
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return redirect(
url_for("dashboard.alias_contact_manager", alias_id=alias_id)
)
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contact_infos = get_contact_infos(alias, page)
last_page = len(contact_infos) < PAGE_LIMIT
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# if highlighted contact isn't included, fetch it
# make sure highlighted contact is at array start
contact_ids = [contact_info.contact.id for contact_info in contact_infos]
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if highlight_contact_id and highlight_contact_id not in contact_ids:
contact_infos = (
get_contact_infos(alias, contact_id=highlight_contact_id) + contact_infos
)
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return render_template(
"dashboard/alias_contact_manager.html",
contact_infos=contact_infos,
alias=alias,
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new_contact_form=new_contact_form,
highlight_contact_id=highlight_contact_id,
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page=page,
last_page=last_page,
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)