mirror of
https://github.com/simple-login/app.git
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243 lines
7.7 KiB
Python
243 lines
7.7 KiB
Python
from typing import Optional
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from email_validator import validate_email
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from flask import g
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from flask import jsonify, request
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from itsdangerous import SignatureExpired
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from app.alias_utils import check_alias_prefix
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from app.api.base import api_bp, require_api_auth
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from app.api.serializer import (
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serialize_alias_info_v2,
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get_alias_info_v2,
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)
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from app.config import MAX_NB_EMAIL_FREE_PLAN, ALIAS_LIMIT
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from app.dashboard.views.custom_alias import verify_prefix_suffix, signer
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from app.db import Session
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from app.extensions import limiter
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from app.log import LOG
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from app.models import (
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Alias,
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AliasUsedOn,
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User,
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CustomDomain,
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DeletedAlias,
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DomainDeletedAlias,
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Mailbox,
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AliasMailbox,
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SLDomain,
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)
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from app.utils import convert_to_id
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def get_custom_domain(alias_address) -> Optional[CustomDomain]:
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alias_domain = validate_email(
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alias_address, check_deliverability=False, allow_smtputf8=False
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).domain
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# handle the case a SLDomain is also a CustomDomain
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if SLDomain.get_by(domain=alias_domain) is None:
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custom_domain = CustomDomain.get_by(domain=alias_domain)
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if custom_domain:
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return custom_domain
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@api_bp.route("/v2/alias/custom/new", methods=["POST"])
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@limiter.limit(ALIAS_LIMIT)
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@require_api_auth
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def new_custom_alias_v2():
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"""
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Create a new custom alias
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Same as v1 but signed_suffix is actually the suffix with signature, e.g.
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.random_word@SL.co.Xq19rQ.s99uWQ7jD1s5JZDZqczYI5TbNNU
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Input:
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alias_prefix, for ex "www_groupon_com"
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signed_suffix, either .random_letters@simplelogin.co or @my-domain.com
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optional "hostname" in args
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optional "note"
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Output:
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201 if success
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409 if the alias already exists
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"""
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user: User = g.user
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if not user.can_create_new_alias():
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LOG.d("user %s cannot create any custom alias", user)
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return (
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jsonify(
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error="You have reached the limitation of a free account with the maximum of "
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f"{MAX_NB_EMAIL_FREE_PLAN} aliases, please upgrade your plan to create more aliases"
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),
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400,
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)
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hostname = request.args.get("hostname")
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data = request.get_json()
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if not data:
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return jsonify(error="request body cannot be empty"), 400
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alias_prefix = data.get("alias_prefix", "").strip().lower().replace(" ", "")
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signed_suffix = data.get("signed_suffix", "").strip()
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note = data.get("note")
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alias_prefix = convert_to_id(alias_prefix)
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# hypothesis: user will click on the button in the 600 secs
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try:
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alias_suffix = signer.unsign(signed_suffix, max_age=600).decode()
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except SignatureExpired:
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LOG.w("Alias creation time expired for %s", user)
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return jsonify(error="Alias creation time is expired, please retry"), 412
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except Exception:
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LOG.w("Alias suffix is tampered, user %s", user)
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return jsonify(error="Tampered suffix"), 400
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if not verify_prefix_suffix(user, alias_prefix, alias_suffix):
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return jsonify(error="wrong alias prefix or suffix"), 400
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full_alias = alias_prefix + alias_suffix
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if (
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Alias.get_by(email=full_alias)
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or DeletedAlias.get_by(email=full_alias)
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or DomainDeletedAlias.get_by(email=full_alias)
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):
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LOG.d("full alias already used %s", full_alias)
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return jsonify(error=f"alias {full_alias} already exists"), 409
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custom_domain = get_custom_domain(full_alias)
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alias = Alias.create(
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user_id=user.id,
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email=full_alias,
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mailbox_id=user.default_mailbox_id,
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note=note,
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custom_domain_id=custom_domain.id if custom_domain else None,
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)
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Session.commit()
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if hostname:
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AliasUsedOn.create(alias_id=alias.id, hostname=hostname, user_id=alias.user_id)
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Session.commit()
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return (
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jsonify(alias=full_alias, **serialize_alias_info_v2(get_alias_info_v2(alias))),
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201,
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)
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@api_bp.route("/v3/alias/custom/new", methods=["POST"])
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@limiter.limit(ALIAS_LIMIT)
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@require_api_auth
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def new_custom_alias_v3():
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"""
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Create a new custom alias
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Same as v2 but accept a list of mailboxes as input
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Input:
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alias_prefix, for ex "www_groupon_com"
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signed_suffix, either .random_letters@simplelogin.co or @my-domain.com
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mailbox_ids: list of int
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optional "hostname" in args
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optional "note"
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optional "name"
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Output:
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201 if success
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409 if the alias already exists
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"""
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user: User = g.user
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if not user.can_create_new_alias():
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LOG.d("user %s cannot create any custom alias", user)
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return (
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jsonify(
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error="You have reached the limitation of a free account with the maximum of "
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f"{MAX_NB_EMAIL_FREE_PLAN} aliases, please upgrade your plan to create more aliases"
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),
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400,
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)
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hostname = request.args.get("hostname")
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data = request.get_json()
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if not data:
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return jsonify(error="request body cannot be empty"), 400
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if type(data) is not dict:
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return jsonify(error="request body does not follow the required format"), 400
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alias_prefix = data.get("alias_prefix", "").strip().lower().replace(" ", "")
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signed_suffix = data.get("signed_suffix", "").strip()
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mailbox_ids = data.get("mailbox_ids")
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note = data.get("note")
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name = data.get("name")
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if name:
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name = name.replace("\n", "")
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alias_prefix = convert_to_id(alias_prefix)
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if not check_alias_prefix(alias_prefix):
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return jsonify(error="alias prefix invalid format or too long"), 400
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# check if mailbox is not tempered with
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if type(mailbox_ids) is not list:
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return jsonify(error="mailbox_ids must be an array of id"), 400
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mailboxes = []
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for mailbox_id in mailbox_ids:
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mailbox = Mailbox.get(mailbox_id)
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if not mailbox or mailbox.user_id != user.id or not mailbox.verified:
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return jsonify(error="Errors with Mailbox"), 400
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mailboxes.append(mailbox)
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if not mailboxes:
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return jsonify(error="At least one mailbox must be selected"), 400
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# hypothesis: user will click on the button in the 600 secs
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try:
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alias_suffix = signer.unsign(signed_suffix, max_age=600).decode()
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except SignatureExpired:
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LOG.w("Alias creation time expired for %s", user)
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return jsonify(error="Alias creation time is expired, please retry"), 412
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except Exception:
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LOG.w("Alias suffix is tampered, user %s", user)
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return jsonify(error="Tampered suffix"), 400
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if not verify_prefix_suffix(user, alias_prefix, alias_suffix):
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return jsonify(error="wrong alias prefix or suffix"), 400
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full_alias = alias_prefix + alias_suffix
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if (
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Alias.get_by(email=full_alias)
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or DeletedAlias.get_by(email=full_alias)
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or DomainDeletedAlias.get_by(email=full_alias)
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):
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LOG.d("full alias already used %s", full_alias)
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return jsonify(error=f"alias {full_alias} already exists"), 409
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custom_domain = get_custom_domain(full_alias)
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alias = Alias.create(
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user_id=user.id,
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email=full_alias,
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note=note,
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name=name or None,
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mailbox_id=mailboxes[0].id,
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custom_domain_id=custom_domain.id if custom_domain else None,
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)
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Session.flush()
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for i in range(1, len(mailboxes)):
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AliasMailbox.create(
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alias_id=alias.id,
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mailbox_id=mailboxes[i].id,
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)
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Session.commit()
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if hostname:
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AliasUsedOn.create(alias_id=alias.id, hostname=hostname, user_id=alias.user_id)
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Session.commit()
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return (
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jsonify(alias=full_alias, **serialize_alias_info_v2(get_alias_info_v2(alias))),
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201,
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)
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