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package main
import (
"fmt"
"io"
"log"
"os"
"github.com/microcosm-cc/bluemonday"
)
func main() {
// Define a policy, we are using the UGC policy as a base.
p := bluemonday.UGCPolicy()
// Add "rel=nofollow" to links
p.RequireNoFollowOnLinks(true)
p.RequireNoFollowOnFullyQualifiedLinks(true)
// Open external links in a new window/tab
p.AddTargetBlankToFullyQualifiedLinks(true)
// Read input from stdin so that this is a nice unix utility and can receive
// piped input
dirty, err := io.ReadAll(os.Stdin)
if err != nil {
log.Fatal(err)
}
// Apply the policy and write to stdout
fmt.Fprint(
os.Stdout,
p.Sanitize(
string(dirty),
),
)
}
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