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allow to limit the number of per-host connections

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This commit is contained in:
Nicola Murino
2021-05-08 19:45:21 +02:00
parent 8f736da4b8
commit 8f6cdacd00
21 changed files with 356 additions and 105 deletions
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51
common/common_test.go
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@@ -228,32 +228,61 @@ func TestRateLimitersIntegration(t *testing.T) {
func TestMaxConnections(t *testing.T) {
oldValue := Config.MaxTotalConnections
Config.MaxTotalConnections = 1
perHost := Config.MaxPerHostConnections
assert.True(t, Connections.IsNewConnectionAllowed())
Config.MaxPerHostConnections = 0
ipAddr := "192.168.7.8"
assert.True(t, Connections.IsNewConnectionAllowed(ipAddr))
Config.MaxTotalConnections = 1
Config.MaxPerHostConnections = perHost
assert.True(t, Connections.IsNewConnectionAllowed(ipAddr))
c := NewBaseConnection("id", ProtocolSFTP, dataprovider.User{})
fakeConn := &fakeConnection{
BaseConnection: c,
}
Connections.Add(fakeConn)
assert.Len(t, Connections.GetStats(), 1)
assert.False(t, Connections.IsNewConnectionAllowed())
assert.False(t, Connections.IsNewConnectionAllowed(ipAddr))
res := Connections.Close(fakeConn.GetID())
assert.True(t, res)
assert.Eventually(t, func() bool { return len(Connections.GetStats()) == 0 }, 300*time.Millisecond, 50*time.Millisecond)
assert.True(t, Connections.IsNewConnectionAllowed())
Connections.AddNetworkConnection()
Connections.AddNetworkConnection()
assert.False(t, Connections.IsNewConnectionAllowed())
Connections.RemoveNetworkConnection()
assert.True(t, Connections.IsNewConnectionAllowed())
Connections.RemoveNetworkConnection()
assert.True(t, Connections.IsNewConnectionAllowed(ipAddr))
Connections.AddClientConnection(ipAddr)
Connections.AddClientConnection(ipAddr)
assert.False(t, Connections.IsNewConnectionAllowed(ipAddr))
Connections.RemoveClientConnection(ipAddr)
assert.True(t, Connections.IsNewConnectionAllowed(ipAddr))
Connections.RemoveClientConnection(ipAddr)
Config.MaxTotalConnections = oldValue
}
func TestMaxConnectionPerHost(t *testing.T) {
oldValue := Config.MaxPerHostConnections
Config.MaxPerHostConnections = 2
ipAddr := "192.168.9.9"
Connections.AddClientConnection(ipAddr)
assert.True(t, Connections.IsNewConnectionAllowed(ipAddr))
Connections.AddClientConnection(ipAddr)
assert.True(t, Connections.IsNewConnectionAllowed(ipAddr))
Connections.AddClientConnection(ipAddr)
assert.False(t, Connections.IsNewConnectionAllowed(ipAddr))
Connections.RemoveClientConnection(ipAddr)
Connections.RemoveClientConnection(ipAddr)
Config.MaxPerHostConnections = oldValue
}
func TestIdleConnections(t *testing.T) {
configCopy := Config
@@ -340,7 +369,7 @@ func TestCloseConnection(t *testing.T) {
fakeConn := &fakeConnection{
BaseConnection: c,
}
assert.True(t, Connections.IsNewConnectionAllowed())
assert.True(t, Connections.IsNewConnectionAllowed("127.0.0.1"))
Connections.Add(fakeConn)
assert.Len(t, Connections.GetStats(), 1)
res := Connections.Close(fakeConn.GetID())