76 lines
1.7 KiB
Go
76 lines
1.7 KiB
Go
package subscriber
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import (
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"crypto/tls"
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"crypto/x509"
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"io/ioutil"
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"time"
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"github.com/influxdata/influxdb/client/v2"
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"github.com/influxdata/influxdb/coordinator"
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)
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// HTTP supports writing points over HTTP using the line protocol.
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type HTTP struct {
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c client.Client
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}
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// NewHTTP returns a new HTTP points writer with default options.
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func NewHTTP(addr string, timeout time.Duration) (*HTTP, error) {
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return NewHTTPS(addr, timeout, false, "")
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}
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// NewHTTPS returns a new HTTPS points writer with default options and HTTPS configured.
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func NewHTTPS(addr string, timeout time.Duration, unsafeSsl bool, caCerts string) (*HTTP, error) {
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tlsConfig, err := createTLSConfig(caCerts)
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if err != nil {
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return nil, err
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}
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conf := client.HTTPConfig{
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Addr: addr,
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Timeout: timeout,
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InsecureSkipVerify: unsafeSsl,
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TLSConfig: tlsConfig,
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}
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c, err := client.NewHTTPClient(conf)
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if err != nil {
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return nil, err
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}
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return &HTTP{c: c}, nil
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}
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// WritePoints writes points over HTTP transport.
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func (h *HTTP) WritePoints(p *coordinator.WritePointsRequest) (err error) {
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bp, _ := client.NewBatchPoints(client.BatchPointsConfig{
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Database: p.Database,
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RetentionPolicy: p.RetentionPolicy,
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})
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for _, pt := range p.Points {
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bp.AddPoint(client.NewPointFrom(pt))
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}
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err = h.c.Write(bp)
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return
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}
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func createTLSConfig(caCerts string) (*tls.Config, error) {
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if caCerts == "" {
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return nil, nil
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}
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return loadCaCerts(caCerts)
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}
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func loadCaCerts(caCerts string) (*tls.Config, error) {
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caCert, err := ioutil.ReadFile(caCerts)
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if err != nil {
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return nil, err
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}
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caCertPool := x509.NewCertPool()
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caCertPool.AppendCertsFromPEM(caCert)
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return &tls.Config{
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RootCAs: caCertPool,
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}, nil
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}
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