From 930b639cc9cd2d2873302f30303378c0e53816a8 Mon Sep 17 00:00:00 2001
From: Wim <wim@42.be>
Date: Sat, 18 Feb 2017 23:00:46 +0100
Subject: Update vendor

---
 .../dgrijalva/jwt-go/request/extractor.go          | 81 ++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 vendor/github.com/dgrijalva/jwt-go/request/extractor.go

(limited to 'vendor/github.com/dgrijalva/jwt-go/request/extractor.go')

diff --git a/vendor/github.com/dgrijalva/jwt-go/request/extractor.go b/vendor/github.com/dgrijalva/jwt-go/request/extractor.go
new file mode 100644
index 00000000..14414fe2
--- /dev/null
+++ b/vendor/github.com/dgrijalva/jwt-go/request/extractor.go
@@ -0,0 +1,81 @@
+package request
+
+import (
+	"errors"
+	"net/http"
+)
+
+// Errors
+var (
+	ErrNoTokenInRequest = errors.New("no token present in request")
+)
+
+// Interface for extracting a token from an HTTP request.
+// The ExtractToken method should return a token string or an error.
+// If no token is present, you must return ErrNoTokenInRequest.
+type Extractor interface {
+	ExtractToken(*http.Request) (string, error)
+}
+
+// Extractor for finding a token in a header.  Looks at each specified
+// header in order until there's a match
+type HeaderExtractor []string
+
+func (e HeaderExtractor) ExtractToken(req *http.Request) (string, error) {
+	// loop over header names and return the first one that contains data
+	for _, header := range e {
+		if ah := req.Header.Get(header); ah != "" {
+			return ah, nil
+		}
+	}
+	return "", ErrNoTokenInRequest
+}
+
+// Extract token from request arguments.  This includes a POSTed form or
+// GET URL arguments.  Argument names are tried in order until there's a match.
+// This extractor calls `ParseMultipartForm` on the request
+type ArgumentExtractor []string
+
+func (e ArgumentExtractor) ExtractToken(req *http.Request) (string, error) {
+	// Make sure form is parsed
+	req.ParseMultipartForm(10e6)
+
+	// loop over arg names and return the first one that contains data
+	for _, arg := range e {
+		if ah := req.Form.Get(arg); ah != "" {
+			return ah, nil
+		}
+	}
+
+	return "", ErrNoTokenInRequest
+}
+
+// Tries Extractors in order until one returns a token string or an error occurs
+type MultiExtractor []Extractor
+
+func (e MultiExtractor) ExtractToken(req *http.Request) (string, error) {
+	// loop over header names and return the first one that contains data
+	for _, extractor := range e {
+		if tok, err := extractor.ExtractToken(req); tok != "" {
+			return tok, nil
+		} else if err != ErrNoTokenInRequest {
+			return "", err
+		}
+	}
+	return "", ErrNoTokenInRequest
+}
+
+// Wrap an Extractor in this to post-process the value before it's handed off.
+// See AuthorizationHeaderExtractor for an example
+type PostExtractionFilter struct {
+	Extractor
+	Filter func(string) (string, error)
+}
+
+func (e *PostExtractionFilter) ExtractToken(req *http.Request) (string, error) {
+	if tok, err := e.Extractor.ExtractToken(req); tok != "" {
+		return e.Filter(tok)
+	} else {
+		return "", err
+	}
+}
-- 
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