fix(inputs.jolokia2): add optional origin header (#11692)

plugins/inputs/jolokia2/common/client.go

@@ -23,6 +23,7 @@ type ClientConfig struct {
 	ResponseTimeout time.Duration
 	Username        string
 	Password        string
+	Origin          string
 	ProxyConfig     *ProxyConfig
 	tls.ClientConfig
 }
@@ -137,6 +138,9 @@ func (c *Client) read(requests []ReadRequest) ([]ReadResponse, error) {
 	}
 
 	req.Header.Add("Content-type", "application/json")
+	if c.config.Origin != "" {
+		req.Header.Add("Origin", c.config.Origin)
+	}
 
 	resp, err := c.client.Do(req)
 	if err != nil {

plugins/inputs/jolokia2/jolokia2_agent/README.md

@@ -18,6 +18,10 @@ The `jolokia2_agent` input plugin reads JMX metrics from one or more
   # password = ""
   # response_timeout = "5s"
 
+  ## Optional origin URL to include as a header in the request. Some endpoints
+  ## may reject an empty origin.
+  # origin = ""
+
   ## Optional TLS config
   # tls_ca   = "/var/private/ca.pem"
   # tls_cert = "/var/private/client.pem"

plugins/inputs/jolokia2/jolokia2_agent/jolokia2_agent.go

@@ -15,6 +15,7 @@ import (
 )
 
 // DO NOT REMOVE THE NEXT TWO LINES! This is required to embed the sampleConfig data.
+//
 //go:embed sample.conf
 var sampleConfig string
 
@@ -23,9 +24,10 @@ type JolokiaAgent struct {
 	DefaultFieldSeparator string
 	DefaultTagPrefix      string
 
-	URLs            []string `toml:"urls"`
-	Username        string
-	Password        string
+	URLs            []string        `toml:"urls"`
+	Username        string          `toml:"username"`
+	Password        string          `toml:"password"`
+	Origin          string          `toml:"origin"`
 	ResponseTimeout config.Duration `toml:"response_timeout"`
 
 	tls.ClientConfig
@@ -91,6 +93,7 @@ func (ja *JolokiaAgent) createClient(url string) (*common.Client, error) {
 	return common.NewClient(url, &common.ClientConfig{
 		Username:        ja.Username,
 		Password:        ja.Password,
+		Origin:          ja.Origin,
 		ResponseTimeout: time.Duration(ja.ResponseTimeout),
 		ClientConfig:    ja.ClientConfig,
 	})

plugins/inputs/jolokia2/jolokia2_agent/sample.conf

@@ -10,6 +10,10 @@
   # password = ""
   # response_timeout = "5s"
 
+  ## Optional origin URL to include as a header in the request. Some endpoints
+  ## may reject an empty origin.
+  # origin = ""
+
   ## Optional TLS config
   # tls_ca   = "/var/private/ca.pem"
   # tls_cert = "/var/private/client.pem"

plugins/inputs/jolokia2/jolokia2_proxy/README.md

@@ -19,6 +19,10 @@ REST endpoint.
   # password = ""
   # response_timeout = "5s"
 
+  ## Optional origin URL to include as a header in the request. Some endpoints
+  ## may reject an empty origin.
+  # origin = ""
+
   ## Optional TLS config
   # tls_ca   = "/var/private/ca.pem"
   # tls_cert = "/var/private/client.pem"

plugins/inputs/jolokia2/jolokia2_proxy/jolokia_proxy.go

@@ -12,21 +12,23 @@ import (
 )
 
 // DO NOT REMOVE THE NEXT TWO LINES! This is required to embed the sampleConfig data.
+//
 //go:embed sample.conf
 var sampleConfig string
 
 type JolokiaProxy struct {
-	DefaultFieldPrefix    string
-	DefaultFieldSeparator string
-	DefaultTagPrefix      string
+	DefaultFieldPrefix    string `toml:"default_field_prefix"`
+	DefaultFieldSeparator string `toml:"default_field_separator"`
+	DefaultTagPrefix      string `toml:"default_tag_prefix"`
 
-	URL                   string `toml:"url"`
-	DefaultTargetPassword string
-	DefaultTargetUsername string
+	URL                   string                     `toml:"url"`
+	DefaultTargetPassword string                     `toml:"default_target_password"`
+	DefaultTargetUsername string                     `toml:"default_target_username"`
 	Targets               []JolokiaProxyTargetConfig `toml:"target"`
 
-	Username        string
-	Password        string
+	Username        string          `toml:"username"`
+	Password        string          `toml:"password"`
+	Origin          string          `toml:"origin"`
 	ResponseTimeout config.Duration `toml:"response_timeout"`
 	tls.ClientConfig
 
@@ -37,8 +39,8 @@ type JolokiaProxy struct {
 
 type JolokiaProxyTargetConfig struct {
 	URL      string `toml:"url"`
-	Username string
-	Password string
+	Username string `toml:"username"`
+	Password string `toml:"password"`
 }
 
 func (*JolokiaProxy) SampleConfig() string {

plugins/inputs/jolokia2/jolokia2_proxy/sample.conf

@@ -10,6 +10,10 @@
   # password = ""
   # response_timeout = "5s"
 
+  ## Optional origin URL to include as a header in the request. Some endpoints
+  ## may reject an empty origin.
+  # origin = ""
+
   ## Optional TLS config
   # tls_ca   = "/var/private/ca.pem"
   # tls_cert = "/var/private/client.pem"