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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| package forwarder | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/tls" | ||
| "crypto/x509" | ||
| "github.com/carlmjohnson/requests" | ||
| "github.com/pkg/errors" | ||
| "net/http" | ||
| "net/url" | ||
| "os" | ||
| "strings" | ||
| ) | ||
|
|
||
| type HTTPMethod int | ||
|
|
||
| const ( | ||
| HTTPMethodPost HTTPMethod = iota | ||
| HTTPMethodGet | ||
| HTTPMethodPut | ||
| ) | ||
|
|
||
| func (h *HTTPMethod) String() string { | ||
| switch *h { | ||
| case HTTPMethodPost: | ||
| return "POST" | ||
| case HTTPMethodGet: | ||
| return "GET" | ||
| case HTTPMethodPut: | ||
| return "PUT" | ||
| default: | ||
| return "" | ||
| } | ||
| } | ||
|
|
||
| func (h *HTTPMethod) UnmarshalText(text []byte) error { | ||
| switch strings.ToLower(string(text)) { | ||
| case "post": | ||
| *h = HTTPMethodPost | ||
| case "get": | ||
| *h = HTTPMethodGet | ||
| case "put": | ||
| *h = HTTPMethodPut | ||
| default: | ||
| return errors.Errorf("unsupported HTTPMethod: %s", string(text)) | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| type HTTPBasicAuth struct { | ||
| Username string | ||
| Password string | ||
| } | ||
|
|
||
| type HTTPConfig struct { | ||
| URL string `mapstructure:"url"` | ||
| Method HTTPMethod | ||
| Headers map[string][]string | ||
| BasicAuth *HTTPBasicAuth `mapstructure:"basic_auth"` | ||
| Tls *Tls | ||
| Proxy string | ||
| Timeout Duration | ||
| } | ||
|
|
||
| type HTTP struct { | ||
| Base | ||
|
|
||
| builder *requests.Builder | ||
| } | ||
|
|
||
| func (h *HTTP) Run() { | ||
| defer h.cancel() | ||
| defer h.logger.Info().Msg("forwarder exited") | ||
| h.logger.Info().Msg("starting forwarder") | ||
|
|
||
| builder := requests. | ||
| URL(h.config.HTTP.URL). | ||
| Method(h.config.HTTP.Method.String()). | ||
| Headers(h.config.HTTP.Headers) | ||
| transport := &http.Transport{} | ||
| if h.config.HTTP.BasicAuth != nil { | ||
| builder = builder.BasicAuth(h.config.HTTP.BasicAuth.Username, h.config.HTTP.BasicAuth.Password) | ||
| } | ||
| if h.config.HTTP.Tls != nil { | ||
| tlsConf := &tls.Config{ | ||
| InsecureSkipVerify: h.config.HTTP.Tls.InsecureSkipVerify, | ||
| } | ||
| if h.config.HTTP.Tls.CaCert != "" { | ||
| ca, err := os.ReadFile(h.config.HTTP.Tls.CaCert) | ||
| if err != nil { | ||
| h.logger.Fatal().Err(err).Msg("failed reading ca certificate") | ||
| } | ||
| caCerts := x509.NewCertPool() | ||
| caCerts.AppendCertsFromPEM(ca) | ||
| tlsConf.RootCAs = caCerts | ||
| } | ||
| if h.config.HTTP.Tls.ClientCert != "" && | ||
| h.config.HTTP.Tls.ClientKey != "" { | ||
| cert, err := tls.LoadX509KeyPair(h.config.HTTP.Tls.ClientCert, h.config.HTTP.Tls.ClientKey) | ||
| if err != nil { | ||
| h.logger.Fatal().Err(err).Msg("failed reading client certificate") | ||
| } | ||
| tlsConf.Certificates = []tls.Certificate{cert} | ||
| } | ||
| transport.TLSClientConfig = tlsConf | ||
| } | ||
| if h.config.HTTP.Proxy != "" { | ||
| proxyUrl, err := url.Parse(h.config.HTTP.Proxy) | ||
| if err != nil { | ||
| h.logger.Fatal().Err(err).Msg("proxy url is not in the correct format") | ||
| } | ||
| transport.Proxy = http.ProxyURL(proxyUrl) | ||
| } | ||
| builder = builder.Transport(transport) | ||
|
|
||
| for { | ||
| m, err := h.Get() | ||
| if err != nil { | ||
| break | ||
| } | ||
| m.Compile(h.CompilerConf) | ||
| if m.Skip { | ||
| h.ctrFiltered.Inc() | ||
| continue | ||
| } | ||
| ctx, cancel := context.WithTimeout(context.Background(), h.config.HTTP.Timeout.Duration) | ||
| if err := builder.BodyBytes(m.MessageJSON).Fetch(ctx); err != nil { | ||
| cancel() | ||
| h.Retry(m, err) | ||
| } else { | ||
| cancel() | ||
| h.ctrSucceeded.Inc() | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func NewHTTP(c Config, idx int) Forwarder { | ||
| fwd := &HTTP{ | ||
| Base: NewBase(c, idx), | ||
| } | ||
| go fwd.Run() | ||
| return fwd | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| logger: | ||
| level: debug | ||
| forwarders: | ||
| - id: http | ||
| http: | ||
| url: http://host.docker.internal:9789 | ||
| snmptrapd: | ||
| auth: | ||
| enable: true | ||
| community: | ||
| - name: public |
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