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http: add Error helper function
R=r, rsc CC=golang-dev https://golang.org/cl/626042
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@ -328,13 +328,16 @@ func (f HandlerFunc) ServeHTTP(c *Conn, req *Request) {
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// Helper handlers
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// NotFound replies to the request with an HTTP 404 not found error.
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func NotFound(c *Conn, req *Request) {
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// Error replies to the request with the specified error message and HTTP code.
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func Error(c *Conn, error string, code int) {
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c.SetHeader("Content-Type", "text/plain; charset=utf-8")
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c.WriteHeader(StatusNotFound)
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io.WriteString(c, "404 page not found\n")
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c.WriteHeader(code)
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fmt.Fprintln(c, error)
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}
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// NotFound replies to the request with an HTTP 404 not found error.
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func NotFound(c *Conn, req *Request) { Error(c, "404 page not found", StatusNotFound) }
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// NotFoundHandler returns a simple request handler
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// that replies to each request with a ``404 page not found'' reply.
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func NotFoundHandler() Handler { return HandlerFunc(NotFound) }
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