mirror of
https://github.com/gravitational/teleport.git
synced 2026-09-21 14:35:22 +08:00
David Boslee
cc36d290a1
* Add metrics to track connection ingress * Add connection unwrapping * Add license * Remove debug logging * Add ingress reporter tests * Remove circular dependency * Fix import formatting * Missing defer * Fix spelling of accepted * Add _total suffix to counters * Add godocs and fix nits * Add test for http conn state reporter * Use loop to unwrap netConnGetters * Test meterics after http conn closed * Ensure conns implement conn getter interface
71 lines
2.2 KiB
Go
71 lines
2.2 KiB
Go
/*
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Copyright 2015 Gravitational, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package utils
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import (
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"net"
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"time"
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)
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// TimeoutConn wraps an existing net.Conn and adds read/write timeouts
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// for it, allowing to implement "disconnect after XX of idle time" policy
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//
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// Usage example:
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// tc := utils.ObeyIdleTimeout(conn, time.Second * 30, "ssh connection")
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// io.Copy(tc, xxx)
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type TimeoutConn struct {
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net.Conn
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TimeoutDuration time.Duration
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// Name is only useful for debugging/logging, it's a convenient
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// way to tag every idle connection
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OwnerName string
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}
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// ObeyIdleTimeout wraps an existing network connection with timeout-obeying
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// Write() and Read() - it will drop the connection after 'timeout' on idle
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//
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// Example:
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// ObeyIdletimeout(conn, time.Second * 60, "api server").
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func ObeyIdleTimeout(conn net.Conn, timeout time.Duration, ownerName string) net.Conn {
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return &TimeoutConn{
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Conn: conn,
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TimeoutDuration: timeout,
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OwnerName: ownerName,
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}
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}
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// NetConn returns the underlying net.Conn.
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func (tc *TimeoutConn) NetConn() net.Conn {
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return tc.Conn
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}
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func (tc *TimeoutConn) Read(p []byte) (n int, err error) {
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// note: checking for errors here does not buy anything: some net.Conn interface
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// implementations (sshConn, pipe) simply return "not supported" error
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tc.Conn.SetReadDeadline(time.Now().Add(tc.TimeoutDuration))
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return tc.Conn.Read(p)
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}
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func (tc *TimeoutConn) Write(p []byte) (n int, err error) {
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// note: checking for errors here does not buy anything: some net.Conn interface
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// implementations (sshConn, pipe) simply return "not supported" error
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tc.Conn.SetWriteDeadline(time.Now().Add(tc.TimeoutDuration))
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return tc.Conn.Write(p)
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}
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