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FILE / ScuroNeko/mtg
network/v2/init.go
Исходный файл и его история в репозитории.
appolimp
5f81ae3743
TCP keepalive was configured (SetKeepAlivePeriod) but never actually enabled (SO_KEEPALIVE) on accepted client connections. Go 1.26's SetKeepAlivePeriod only sets TCP_KEEPIDLE — it does not call setsockopt(SO_KEEPALIVE, 1). Without SO_KEEPALIVE the kernel never sends probe packets, so dead connections from sleeping mobile clients linger until the idle timeout fires. Replace SetKeepAlive + SetKeepAlivePeriod with net.KeepAliveConfig (available since Go 1.24) for explicit per-socket control: Idle: 30s (time before first probe) Interval: 10s (between probes) Count: 3 (failed probes to declare dead) This detects dead connections in ~60s instead of relying on system defaults (tcp_keepalive_intvl=75s, probes=9 → up to 11 minutes). Increase the default idle timeout from 1 minute to 5 minutes. MTProto clients send ping_delay_disconnect every ~60s, which resets the idle timer. The previous 1-minute default created a race: if a ping arrived even 1–2 seconds late the relay was killed. A 5-minute window also survives typical mobile sleep periods (phone idle 2–5 min) where the NAT mapping is still alive and the connection can resume without reconnection. Ref: #132
54 lines
1.6 KiB
Go
54 lines
1.6 KiB
Go
// Network contains a default implementation of the network.
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//
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// Please see [mtglib.Network] interface to get some basic idea behind this
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// abstraction.
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//
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// This implementation is more simple that v1 because life shows that all
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// this complexity, especially around circuit breakers and DoH is not really
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// required. There is no chance that if DNS address is spoofed, that real
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// IP would work as expected.
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package network
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import (
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"errors"
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"time"
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)
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const (
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// DefaultTimeout is a default timeout for establishing TCP connection.
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DefaultTimeout = 10 * time.Second
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// DefaultHTTPTimeout defines a default timeout for making HTTP request.
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DefaultHTTPTimeout = 10 * time.Second
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// DefaultIdleTimeout defines a timeout for idle HTTP connections
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DefaultIdleTimeout = time.Minute
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// DefaultTCPKeepAlivePeriod defines a time period between 2 consecuitive
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// probes.
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//
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// Deprecated: use DefaultKeepAliveIdle and DefaultKeepAliveInterval instead.
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DefaultTCPKeepAlivePeriod = 10 * time.Second
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// DefaultKeepAliveIdle is the time a connection must be idle before
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// the first keepalive probe is sent.
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DefaultKeepAliveIdle = 30 * time.Second
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// DefaultKeepAliveInterval is the time between consecutive keepalive
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// probes.
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DefaultKeepAliveInterval = 10 * time.Second
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// DefaultKeepAliveCount is the number of unacknowledged probes before
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// the connection is considered dead.
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DefaultKeepAliveCount = 3
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// User Agent to use in HTTP client.
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UserAgent = "curl/8.5.0"
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// tcpLingerTimeout defines a number of seconds to wait for sending
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// unacknowledged data.
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tcpLingerTimeout = 1
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)
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var ErrCannotDial = errors.New("cannot dial to any address")
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