import re from dataclasses import dataclass from operator import or_ from flask import render_template, request, redirect, flash from flask import url_for from flask_login import login_required, current_user from flask_wtf import FlaskForm from sqlalchemy import and_, func, case from wtforms import StringField, validators, ValidationError from app.config import EMAIL_DOMAIN, PAGE_LIMIT from app.dashboard.base import dashboard_bp from app.email_utils import parseaddr_unicode, is_valid_email, generate_reply_email from app.extensions import db from app.log import LOG from app.models import Alias, Contact, EmailLog 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 not is_valid_email(email_part): raise ValidationError(message) 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_( EmailLog.is_reply == False, EmailLog.blocked == False, ), 1, ) ], else_=0, ) ).label("nb_forward"), func.max(EmailLog.created_at).label("max_email_log_created_at"), ) .join( EmailLog, EmailLog.contact_id == Contact.id, isouter=True, ) .filter(Contact.alias_id == alias.id) .group_by(Contact.id) .subquery() ) q = ( 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 sub.c.max_email_log_created_at == 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//", methods=["GET", "POST"]) @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) page = 0 if request.args.get("page"): page = int(request.args.get("page")) # 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_addr = new_contact_form.email.data.strip() try: contact_name, contact_email = parseaddr_unicode(contact_addr) except Exception: flash(f"{contact_addr} is invalid", "error") return redirect( 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, ) ) contact = Contact.get_by(alias_id=alias.id, website_email=contact_email) # already been added if contact: flash(f"{contact_email} is already added", "error") return redirect( url_for( "dashboard.alias_contact_manager", alias_id=alias_id, highlight_contact_id=contact.id, ) ) contact = Contact.create( user_id=alias.user_id, alias_id=alias.id, website_email=contact_email, name=contact_name, reply_email=generate_reply_email(contact_email), ) LOG.d("create reverse-alias for %s", contact_addr) db.session.commit() flash(f"Reverse alias for {contact_addr} is created", "success") return redirect( url_for( "dashboard.alias_contact_manager", alias_id=alias_id, highlight_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) ) delete_contact_email = contact.website_email Contact.delete(contact_id) db.session.commit() flash( f"Reverse-alias for {delete_contact_email} has been deleted", "success" ) return redirect( url_for("dashboard.alias_contact_manager", alias_id=alias_id) ) contact_infos = get_contact_infos(alias, page) last_page = len(contact_infos) < PAGE_LIMIT # 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] 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 ) return render_template( "dashboard/alias_contact_manager.html", contact_infos=contact_infos, alias=alias, new_contact_form=new_contact_form, highlight_contact_id=highlight_contact_id, page=page, last_page=last_page, )