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authorWim <wim@42.be>2018-08-06 21:47:05 +0200
committerWim <wim@42.be>2018-08-06 21:47:05 +0200
commit51062863a5c34d81e296cf15c61140911037cf3b (patch)
tree9b5e044672486326c7a0ca8fb26430f37bf4d83c /vendor/github.com/armon/consul-api/api.go
parent4fb4b7aa6c02a54db8ad8dd98e4d321396926c0d (diff)
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Use mod vendor for vendored directory (backwards compatible)
Diffstat (limited to 'vendor/github.com/armon/consul-api/api.go')
-rw-r--r--vendor/github.com/armon/consul-api/api.go323
1 files changed, 0 insertions, 323 deletions
diff --git a/vendor/github.com/armon/consul-api/api.go b/vendor/github.com/armon/consul-api/api.go
deleted file mode 100644
index e1335769..00000000
--- a/vendor/github.com/armon/consul-api/api.go
+++ /dev/null
@@ -1,323 +0,0 @@
-package consulapi
-
-import (
- "bytes"
- "encoding/json"
- "fmt"
- "io"
- "net/http"
- "net/url"
- "strconv"
- "time"
-)
-
-// QueryOptions are used to parameterize a query
-type QueryOptions struct {
- // Providing a datacenter overwrites the DC provided
- // by the Config
- Datacenter string
-
- // AllowStale allows any Consul server (non-leader) to service
- // a read. This allows for lower latency and higher throughput
- AllowStale bool
-
- // RequireConsistent forces the read to be fully consistent.
- // This is more expensive but prevents ever performing a stale
- // read.
- RequireConsistent bool
-
- // WaitIndex is used to enable a blocking query. Waits
- // until the timeout or the next index is reached
- WaitIndex uint64
-
- // WaitTime is used to bound the duration of a wait.
- // Defaults to that of the Config, but can be overriden.
- WaitTime time.Duration
-
- // Token is used to provide a per-request ACL token
- // which overrides the agent's default token.
- Token string
-}
-
-// WriteOptions are used to parameterize a write
-type WriteOptions struct {
- // Providing a datacenter overwrites the DC provided
- // by the Config
- Datacenter string
-
- // Token is used to provide a per-request ACL token
- // which overrides the agent's default token.
- Token string
-}
-
-// QueryMeta is used to return meta data about a query
-type QueryMeta struct {
- // LastIndex. This can be used as a WaitIndex to perform
- // a blocking query
- LastIndex uint64
-
- // Time of last contact from the leader for the
- // server servicing the request
- LastContact time.Duration
-
- // Is there a known leader
- KnownLeader bool
-
- // How long did the request take
- RequestTime time.Duration
-}
-
-// WriteMeta is used to return meta data about a write
-type WriteMeta struct {
- // How long did the request take
- RequestTime time.Duration
-}
-
-// HttpBasicAuth is used to authenticate http client with HTTP Basic Authentication
-type HttpBasicAuth struct {
- // Username to use for HTTP Basic Authentication
- Username string
-
- // Password to use for HTTP Basic Authentication
- Password string
-}
-
-// Config is used to configure the creation of a client
-type Config struct {
- // Address is the address of the Consul server
- Address string
-
- // Scheme is the URI scheme for the Consul server
- Scheme string
-
- // Datacenter to use. If not provided, the default agent datacenter is used.
- Datacenter string
-
- // HttpClient is the client to use. Default will be
- // used if not provided.
- HttpClient *http.Client
-
- // HttpAuth is the auth info to use for http access.
- HttpAuth *HttpBasicAuth
-
- // WaitTime limits how long a Watch will block. If not provided,
- // the agent default values will be used.
- WaitTime time.Duration
-
- // Token is used to provide a per-request ACL token
- // which overrides the agent's default token.
- Token string
-}
-
-// DefaultConfig returns a default configuration for the client
-func DefaultConfig() *Config {
- return &Config{
- Address: "127.0.0.1:8500",
- Scheme: "http",
- HttpClient: http.DefaultClient,
- }
-}
-
-// Client provides a client to the Consul API
-type Client struct {
- config Config
-}
-
-// NewClient returns a new client
-func NewClient(config *Config) (*Client, error) {
- // bootstrap the config
- defConfig := DefaultConfig()
-
- if len(config.Address) == 0 {
- config.Address = defConfig.Address
- }
-
- if len(config.Scheme) == 0 {
- config.Scheme = defConfig.Scheme
- }
-
- if config.HttpClient == nil {
- config.HttpClient = defConfig.HttpClient
- }
-
- client := &Client{
- config: *config,
- }
- return client, nil
-}
-
-// request is used to help build up a request
-type request struct {
- config *Config
- method string
- url *url.URL
- params url.Values
- body io.Reader
- obj interface{}
-}
-
-// setQueryOptions is used to annotate the request with
-// additional query options
-func (r *request) setQueryOptions(q *QueryOptions) {
- if q == nil {
- return
- }
- if q.Datacenter != "" {
- r.params.Set("dc", q.Datacenter)
- }
- if q.AllowStale {
- r.params.Set("stale", "")
- }
- if q.RequireConsistent {
- r.params.Set("consistent", "")
- }
- if q.WaitIndex != 0 {
- r.params.Set("index", strconv.FormatUint(q.WaitIndex, 10))
- }
- if q.WaitTime != 0 {
- r.params.Set("wait", durToMsec(q.WaitTime))
- }
- if q.Token != "" {
- r.params.Set("token", q.Token)
- }
-}
-
-// durToMsec converts a duration to a millisecond specified string
-func durToMsec(dur time.Duration) string {
- return fmt.Sprintf("%dms", dur/time.Millisecond)
-}
-
-// setWriteOptions is used to annotate the request with
-// additional write options
-func (r *request) setWriteOptions(q *WriteOptions) {
- if q == nil {
- return
- }
- if q.Datacenter != "" {
- r.params.Set("dc", q.Datacenter)
- }
- if q.Token != "" {
- r.params.Set("token", q.Token)
- }
-}
-
-// toHTTP converts the request to an HTTP request
-func (r *request) toHTTP() (*http.Request, error) {
- // Encode the query parameters
- r.url.RawQuery = r.params.Encode()
-
- // Get the url sring
- urlRaw := r.url.String()
-
- // Check if we should encode the body
- if r.body == nil && r.obj != nil {
- if b, err := encodeBody(r.obj); err != nil {
- return nil, err
- } else {
- r.body = b
- }
- }
-
- // Create the HTTP request
- req, err := http.NewRequest(r.method, urlRaw, r.body)
-
- // Setup auth
- if err == nil && r.config.HttpAuth != nil {
- req.SetBasicAuth(r.config.HttpAuth.Username, r.config.HttpAuth.Password)
- }
-
- return req, err
-}
-
-// newRequest is used to create a new request
-func (c *Client) newRequest(method, path string) *request {
- r := &request{
- config: &c.config,
- method: method,
- url: &url.URL{
- Scheme: c.config.Scheme,
- Host: c.config.Address,
- Path: path,
- },
- params: make(map[string][]string),
- }
- if c.config.Datacenter != "" {
- r.params.Set("dc", c.config.Datacenter)
- }
- if c.config.WaitTime != 0 {
- r.params.Set("wait", durToMsec(r.config.WaitTime))
- }
- if c.config.Token != "" {
- r.params.Set("token", r.config.Token)
- }
- return r
-}
-
-// doRequest runs a request with our client
-func (c *Client) doRequest(r *request) (time.Duration, *http.Response, error) {
- req, err := r.toHTTP()
- if err != nil {
- return 0, nil, err
- }
- start := time.Now()
- resp, err := c.config.HttpClient.Do(req)
- diff := time.Now().Sub(start)
- return diff, resp, err
-}
-
-// parseQueryMeta is used to help parse query meta-data
-func parseQueryMeta(resp *http.Response, q *QueryMeta) error {
- header := resp.Header
-
- // Parse the X-Consul-Index
- index, err := strconv.ParseUint(header.Get("X-Consul-Index"), 10, 64)
- if err != nil {
- return fmt.Errorf("Failed to parse X-Consul-Index: %v", err)
- }
- q.LastIndex = index
-
- // Parse the X-Consul-LastContact
- last, err := strconv.ParseUint(header.Get("X-Consul-LastContact"), 10, 64)
- if err != nil {
- return fmt.Errorf("Failed to parse X-Consul-LastContact: %v", err)
- }
- q.LastContact = time.Duration(last) * time.Millisecond
-
- // Parse the X-Consul-KnownLeader
- switch header.Get("X-Consul-KnownLeader") {
- case "true":
- q.KnownLeader = true
- default:
- q.KnownLeader = false
- }
- return nil
-}
-
-// decodeBody is used to JSON decode a body
-func decodeBody(resp *http.Response, out interface{}) error {
- dec := json.NewDecoder(resp.Body)
- return dec.Decode(out)
-}
-
-// encodeBody is used to encode a request body
-func encodeBody(obj interface{}) (io.Reader, error) {
- buf := bytes.NewBuffer(nil)
- enc := json.NewEncoder(buf)
- if err := enc.Encode(obj); err != nil {
- return nil, err
- }
- return buf, nil
-}
-
-// requireOK is used to wrap doRequest and check for a 200
-func requireOK(d time.Duration, resp *http.Response, e error) (time.Duration, *http.Response, error) {
- if e != nil {
- return d, resp, e
- }
- if resp.StatusCode != 200 {
- var buf bytes.Buffer
- io.Copy(&buf, resp.Body)
- return d, resp, fmt.Errorf("Unexpected response code: %d (%s)", resp.StatusCode, buf.Bytes())
- }
- return d, resp, e
-}