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| author | Jordan <me@jordan.im> | 2023-12-16 17:41:01 -0700 |
|---|---|---|
| committer | Jordan <me@jordan.im> | 2023-12-16 17:41:01 -0700 |
| commit | 7ecc048ae012a631bc3f0dcbd62f6190384ea0cd (patch) | |
| tree | f8dd09feb67af740fb92d13c458e602f9bee8d45 /vendor/github.com/gorilla/websocket/util.go | |
| parent | a3dac1a28fdc9e42d85c4686858c64597cf1a15b (diff) | |
| download | keep-7ecc048ae012a631bc3f0dcbd62f6190384ea0cd.tar.gz keep-7ecc048ae012a631bc3f0dcbd62f6190384ea0cd.zip | |
Diffstat (limited to 'vendor/github.com/gorilla/websocket/util.go')
| -rw-r--r-- | vendor/github.com/gorilla/websocket/util.go | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/vendor/github.com/gorilla/websocket/util.go b/vendor/github.com/gorilla/websocket/util.go index 7bf2f66..9b1a629 100644 --- a/vendor/github.com/gorilla/websocket/util.go +++ b/vendor/github.com/gorilla/websocket/util.go @@ -6,7 +6,7 @@ package websocket import ( "crypto/rand" - "crypto/sha1" + "crypto/sha1" //#nosec G505 -- (CWE-327) https://datatracker.ietf.org/doc/html/rfc6455#page-54 "encoding/base64" "io" "net/http" @@ -17,7 +17,7 @@ import ( var keyGUID = []byte("258EAFA5-E914-47DA-95CA-C5AB0DC85B11") func computeAcceptKey(challengeKey string) string { - h := sha1.New() + h := sha1.New() //#nosec G401 -- (CWE-326) https://datatracker.ietf.org/doc/html/rfc6455#page-54 h.Write([]byte(challengeKey)) h.Write(keyGUID) return base64.StdEncoding.EncodeToString(h.Sum(nil)) @@ -281,3 +281,18 @@ headers: } return result } + +// isValidChallengeKey checks if the argument meets RFC6455 specification. +func isValidChallengeKey(s string) bool { + // From RFC6455: + // + // A |Sec-WebSocket-Key| header field with a base64-encoded (see + // Section 4 of [RFC4648]) value that, when decoded, is 16 bytes in + // length. + + if s == "" { + return false + } + decoded, err := base64.StdEncoding.DecodeString(s) + return err == nil && len(decoded) == 16 +} |