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fix matching if only h1 is enabled

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This commit is contained in:
WeidiDeng 2025-05-23 10:28:58 +08:00
parent c28bab9cb3
commit 4158f9e8d5
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1 changed files with 11 additions and 5 deletions
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16
modules/caddyhttp/http2listener.go
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@ -86,11 +86,17 @@ func (c *http2Conn) Read(p []byte) (int, error) {
} }
n, err := c.Conn.Read(p) n, err := c.Conn.Read(p)
for i := range n { for i := range n {
// first mismatch, close the connection if h2 is expected // first mismatch
if p[i] != http2.ClientPreface[c.idx] && c.h2Expected { if p[i] != http2.ClientPreface[c.idx] {
c.logger.Debug("h1 connection detected, but h1 is not enabled") // close the connection if h2 is expected
_ = c.Conn.Close() if c.h2Expected {
return 0, io.EOF c.logger.Debug("h1 connection detected, but h1 is not enabled")
_ = c.Conn.Close()
return 0, io.EOF
}
// no need to continue matching anymore
c.idx = len(http2.ClientPreface)
return n, err
} }
c.idx++ c.idx++
// matching complete // matching complete