85 lines
2.5 KiB
Go
85 lines
2.5 KiB
Go
// Copyright (c) 2024 Proton AG
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//
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// This file is part of Proton Mail Bridge.Bridge.
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//
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// Proton Mail Bridge is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Proton Mail Bridge is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
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package dialer
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import (
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"context"
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"crypto/tls"
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"net"
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"net/http"
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"time"
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)
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type TLSDialer interface {
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DialTLSContext(ctx context.Context, network, address string) (conn net.Conn, err error)
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}
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func SetBasicTransportTimeouts(t *http.Transport) {
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t.MaxIdleConns = 100
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t.MaxIdleConnsPerHost = 100
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t.IdleConnTimeout = 5 * time.Minute
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t.ExpectContinueTimeout = 500 * time.Millisecond
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// GODT-126: this was initially 10s but logs from users showed a significant number
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// were hitting this timeout, possibly due to flaky wifi taking >10s to reconnect.
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// Bumping to 30s for now to avoid this problem.
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t.ResponseHeaderTimeout = 30 * time.Second
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// If we allow up to 30 seconds for response headers, it is reasonable to allow up
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// to 30 seconds for the TLS handshake to take place.
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t.TLSHandshakeTimeout = 30 * time.Second
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}
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// CreateTransportWithDialer creates an http.Transport that uses the given dialer to make TLS connections.
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func CreateTransportWithDialer(dialer TLSDialer) *http.Transport {
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t := &http.Transport{
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DialTLSContext: dialer.DialTLSContext,
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Proxy: http.ProxyFromEnvironment,
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}
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SetBasicTransportTimeouts(t)
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return t
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}
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// BasicTLSDialer implements TLSDialer.
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type BasicTLSDialer struct {
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hostURL string
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}
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// NewBasicTLSDialer returns a new BasicTLSDialer.
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func NewBasicTLSDialer(hostURL string) *BasicTLSDialer {
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return &BasicTLSDialer{
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hostURL: hostURL,
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}
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}
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// DialTLSContext returns a connection to the given address using the given network.
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func (d *BasicTLSDialer) DialTLSContext(ctx context.Context, network, address string) (conn net.Conn, err error) {
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return (&tls.Dialer{
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NetDialer: &net.Dialer{
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Timeout: 30 * time.Second,
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},
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Config: &tls.Config{
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InsecureSkipVerify: address != d.hostURL, //nolint:gosec
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},
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}).DialContext(ctx, network, address)
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}
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