1 files changed, 0 insertions, 281 deletions
diff --git a/vendor/github.com/prometheus/common/config/http_config.go b/vendor/github.com/prometheus/common/config/http_config.go
deleted file mode 100644
index ea231bf8d..000000000
--- a/vendor/github.com/prometheus/common/config/http_config.go
+++ /dev/null
@@ -1,281 +0,0 @@
-// Copyright 2016 The Prometheus Authors
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package config
-
-import (
-	"crypto/tls"
-	"crypto/x509"
-	"fmt"
-	"io/ioutil"
-	"net/http"
-	"net/url"
-	"strings"
-
-	"gopkg.in/yaml.v2"
-)
-
-// BasicAuth contains basic HTTP authentication credentials.
-type BasicAuth struct {
-	Username string `yaml:"username"`
-	Password Secret `yaml:"password"`
-
-	// Catches all undefined fields and must be empty after parsing.
-	XXX map[string]interface{} `yaml:",inline"`
-}
-
-// URL is a custom URL type that allows validation at configuration load time.
-type URL struct {
-	*url.URL
-}
-
-// UnmarshalYAML implements the yaml.Unmarshaler interface for URLs.
-func (u *URL) UnmarshalYAML(unmarshal func(interface{}) error) error {
-	var s string
-	if err := unmarshal(&s); err != nil {
-		return err
-	}
-
-	urlp, err := url.Parse(s)
-	if err != nil {
-		return err
-	}
-	u.URL = urlp
-	return nil
-}
-
-// MarshalYAML implements the yaml.Marshaler interface for URLs.
-func (u URL) MarshalYAML() (interface{}, error) {
-	if u.URL != nil {
-		return u.String(), nil
-	}
-	return nil, nil
-}
-
-// HTTPClientConfig configures an HTTP client.
-type HTTPClientConfig struct {
-	// The HTTP basic authentication credentials for the targets.
-	BasicAuth *BasicAuth `yaml:"basic_auth,omitempty"`
-	// The bearer token for the targets.
-	BearerToken Secret `yaml:"bearer_token,omitempty"`
-	// The bearer token file for the targets.
-	BearerTokenFile string `yaml:"bearer_token_file,omitempty"`
-	// HTTP proxy server to use to connect to the targets.
-	ProxyURL URL `yaml:"proxy_url,omitempty"`
-	// TLSConfig to use to connect to the targets.
-	TLSConfig TLSConfig `yaml:"tls_config,omitempty"`
-
-	// Catches all undefined fields and must be empty after parsing.
-	XXX map[string]interface{} `yaml:",inline"`
-}
-
-// Validate validates the HTTPClientConfig to check only one of BearerToken,
-// BasicAuth and BearerTokenFile is configured.
-func (c *HTTPClientConfig) Validate() error {
-	if len(c.BearerToken) > 0 && len(c.BearerTokenFile) > 0 {
-		return fmt.Errorf("at most one of bearer_token & bearer_token_file must be configured")
-	}
-	if c.BasicAuth != nil && (len(c.BearerToken) > 0 || len(c.BearerTokenFile) > 0) {
-		return fmt.Errorf("at most one of basic_auth, bearer_token & bearer_token_file must be configured")
-	}
-	return nil
-}
-
-// UnmarshalYAML implements the yaml.Unmarshaler interface
-func (c *HTTPClientConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
-	type plain HTTPClientConfig
-	err := unmarshal((*plain)(c))
-	if err != nil {
-		return err
-	}
-	err = c.Validate()
-	if err != nil {
-		return c.Validate()
-	}
-	return checkOverflow(c.XXX, "http_client_config")
-}
-
-// UnmarshalYAML implements the yaml.Unmarshaler interface.
-func (a *BasicAuth) UnmarshalYAML(unmarshal func(interface{}) error) error {
-	type plain BasicAuth
-	err := unmarshal((*plain)(a))
-	if err != nil {
-		return err
-	}
-	return checkOverflow(a.XXX, "basic_auth")
-}
-
-// NewHTTPClientFromConfig returns a new HTTP client configured for the
-// given config.HTTPClientConfig.
-func NewHTTPClientFromConfig(cfg *HTTPClientConfig) (*http.Client, error) {
-	tlsConfig, err := NewTLSConfig(&cfg.TLSConfig)
-	if err != nil {
-		return nil, err
-	}
-
-	// It's the caller's job to handle timeouts
-	var rt http.RoundTripper = &http.Transport{
-		Proxy:             http.ProxyURL(cfg.ProxyURL.URL),
-		DisableKeepAlives: true,
-		TLSClientConfig:   tlsConfig,
-	}
-
-	// If a bearer token is provided, create a round tripper that will set the
-	// Authorization header correctly on each request.
-	bearerToken := cfg.BearerToken
-	if len(bearerToken) == 0 && len(cfg.BearerTokenFile) > 0 {
-		b, err := ioutil.ReadFile(cfg.BearerTokenFile)
-		if err != nil {
-			return nil, fmt.Errorf("unable to read bearer token file %s: %s", cfg.BearerTokenFile, err)
-		}
-		bearerToken = Secret(strings.TrimSpace(string(b)))
-	}
-
-	if len(bearerToken) > 0 {
-		rt = NewBearerAuthRoundTripper(bearerToken, rt)
-	}
-
-	if cfg.BasicAuth != nil {
-		rt = NewBasicAuthRoundTripper(cfg.BasicAuth.Username, Secret(cfg.BasicAuth.Password), rt)
-	}
-
-	// Return a new client with the configured round tripper.
-	return &http.Client{Transport: rt}, nil
-}
-
-type bearerAuthRoundTripper struct {
-	bearerToken Secret
-	rt          http.RoundTripper
-}
-
-type basicAuthRoundTripper struct {
-	username string
-	password Secret
-	rt       http.RoundTripper
-}
-
-// NewBasicAuthRoundTripper will apply a BASIC auth authorization header to a request unless it has
-// already been set.
-func NewBasicAuthRoundTripper(username string, password Secret, rt http.RoundTripper) http.RoundTripper {
-	return &basicAuthRoundTripper{username, password, rt}
-}
-
-func (rt *bearerAuthRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
-	if len(req.Header.Get("Authorization")) == 0 {
-		req = cloneRequest(req)
-		req.Header.Set("Authorization", "Bearer "+string(rt.bearerToken))
-	}
-
-	return rt.rt.RoundTrip(req)
-}
-
-// NewBearerAuthRoundTripper adds the provided bearer token to a request unless the authorization
-// header has already been set.
-func NewBearerAuthRoundTripper(bearer Secret, rt http.RoundTripper) http.RoundTripper {
-	return &bearerAuthRoundTripper{bearer, rt}
-}
-
-func (rt *basicAuthRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
-	if len(req.Header.Get("Authorization")) != 0 {
-		return rt.RoundTrip(req)
-	}
-	req = cloneRequest(req)
-	req.SetBasicAuth(rt.username, string(rt.password))
-	return rt.rt.RoundTrip(req)
-}
-
-// cloneRequest returns a clone of the provided *http.Request.
-// The clone is a shallow copy of the struct and its Header map.
-func cloneRequest(r *http.Request) *http.Request {
-	// Shallow copy of the struct.
-	r2 := new(http.Request)
-	*r2 = *r
-	// Deep copy of the Header.
-	r2.Header = make(http.Header)
-	for k, s := range r.Header {
-		r2.Header[k] = s
-	}
-	return r2
-}
-
-// NewTLSConfig creates a new tls.Config from the given config.TLSConfig.
-func NewTLSConfig(cfg *TLSConfig) (*tls.Config, error) {
-	tlsConfig := &tls.Config{InsecureSkipVerify: cfg.InsecureSkipVerify}
-
-	// If a CA cert is provided then let's read it in so we can validate the
-	// scrape target's certificate properly.
-	if len(cfg.CAFile) > 0 {
-		caCertPool := x509.NewCertPool()
-		// Load CA cert.
-		caCert, err := ioutil.ReadFile(cfg.CAFile)
-		if err != nil {
-			return nil, fmt.Errorf("unable to use specified CA cert %s: %s", cfg.CAFile, err)
-		}
-		caCertPool.AppendCertsFromPEM(caCert)
-		tlsConfig.RootCAs = caCertPool
-	}
-
-	if len(cfg.ServerName) > 0 {
-		tlsConfig.ServerName = cfg.ServerName
-	}
-
-	// If a client cert & key is provided then configure TLS config accordingly.
-	if len(cfg.CertFile) > 0 && len(cfg.KeyFile) == 0 {
-		return nil, fmt.Errorf("client cert file %q specified without client key file", cfg.CertFile)
-	} else if len(cfg.KeyFile) > 0 && len(cfg.CertFile) == 0 {
-		return nil, fmt.Errorf("client key file %q specified without client cert file", cfg.KeyFile)
-	} else if len(cfg.CertFile) > 0 && len(cfg.KeyFile) > 0 {
-		cert, err := tls.LoadX509KeyPair(cfg.CertFile, cfg.KeyFile)
-		if err != nil {
-			return nil, fmt.Errorf("unable to use specified client cert (%s) & key (%s): %s", cfg.CertFile, cfg.KeyFile, err)
-		}
-		tlsConfig.Certificates = []tls.Certificate{cert}
-	}
-	tlsConfig.BuildNameToCertificate()
-
-	return tlsConfig, nil
-}
-
-// TLSConfig configures the options for TLS connections.
-type TLSConfig struct {
-	// The CA cert to use for the targets.
-	CAFile string `yaml:"ca_file,omitempty"`
-	// The client cert file for the targets.
-	CertFile string `yaml:"cert_file,omitempty"`
-	// The client key file for the targets.
-	KeyFile string `yaml:"key_file,omitempty"`
-	// Used to verify the hostname for the targets.
-	ServerName string `yaml:"server_name,omitempty"`
-	// Disable target certificate validation.
-	InsecureSkipVerify bool `yaml:"insecure_skip_verify"`
-
-	// Catches all undefined fields and must be empty after parsing.
-	XXX map[string]interface{} `yaml:",inline"`
-}
-
-// UnmarshalYAML implements the yaml.Unmarshaler interface.
-func (c *TLSConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
-	type plain TLSConfig
-	if err := unmarshal((*plain)(c)); err != nil {
-		return err
-	}
-	return checkOverflow(c.XXX, "TLS config")
-}
-
-func (c HTTPClientConfig) String() string {
-	b, err := yaml.Marshal(c)
-	if err != nil {
-		return fmt.Sprintf("<error creating http client config string: %s>", err)
-	}
-	return string(b)
-}