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Add hint if provider is called outside of CGI

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Co-authored-by: Sascha L. Teichmann <sascha.teichmann@intevation.de>
This commit is contained in:
JanHoefelmeyer 2022-06-23 17:27:25 +02:00 • committed by GitHub
parent f8ce08a26e
commit 38d3679704
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1 changed files with 13 additions and 0 deletions
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13
cmd/csaf_provider/main.go
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@ -13,6 +13,7 @@ import (
"log" "log"
"net/http" "net/http"
"net/http/cgi" "net/http/cgi"
"os"
"github.com/csaf-poc/csaf_distribution/util" "github.com/csaf-poc/csaf_distribution/util"
"github.com/jessevdk/go-flags" "github.com/jessevdk/go-flags"
@ -22,6 +23,16 @@ type options struct {
Version bool `long:"version" description:"Display version of the binary"` Version bool `long:"version" description:"Display version of the binary"`
} }
const cgiRequired = "The csaf_provider is a cgi binary and is designed to be served via a web server."
func ensureCGI() {
if _, ok := os.LookupEnv("REQUEST_METHOD"); !ok {
fmt.Println(cgiRequired)
fmt.Println("Version: " + util.SemVersion)
os.Exit(1)
}
}
func main() { func main() {
var opts options var opts options
parser := flags.NewParser(&opts, flags.Default) parser := flags.NewParser(&opts, flags.Default)
@ -31,6 +42,8 @@ func main() {
return return
} }
ensureCGI()
cfg, err := loadConfig() cfg, err := loadConfig()
if err != nil { if err != nil {
cgi.Serve(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) { cgi.Serve(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {