a0246ccee2
Includes a few minor fixes: - frontend: support setting port for WHOIS server - proxy: fix handling of very long lines - proxy: refactor IP allowlist logic, parse allow IP list at startup
102 lines
2.1 KiB
Go
102 lines
2.1 KiB
Go
package main
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import (
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"fmt"
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"strings"
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)
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func dn42WhoisFilter(whois string) string {
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commandResult := ""
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isNextSection := false
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skippedLines := 0
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// Filter out some long (and useless) keys
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filteredPrefix := []string{
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"descr:", "remarks:", "ds-rdata:", "auth:", "country:",
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"nserver:", "status:", "pgp-fingerprint:", "mp-import:", "mp-export:",
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"members:", "key:", "inetnum:", "inet6num:", " ", "+",
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}
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for _, s := range strings.Split(whois, "\n") {
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if len(s) == 0 {
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// This line is a separation between parts of results
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// Only keep last part of result
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isNextSection = true
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continue
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}
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shouldSkip := false
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for _, filtered := range filteredPrefix {
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if strings.HasPrefix(s, filtered) {
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shouldSkip = true
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}
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}
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if shouldSkip {
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skippedLines++
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continue
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}
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if isNextSection {
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isNextSection = false
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skippedLines = 0
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commandResult = ""
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}
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commandResult += s + "\n"
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}
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if skippedLines > 0 {
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return commandResult + fmt.Sprintf("\n%d line(s) skipped.\n", skippedLines)
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} else {
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return commandResult
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}
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}
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/* experimental, behavior may change */
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func shortenWhoisFilter(whois string) string {
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commandResult := ""
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commandResultLonger := ""
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lines := 0
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linesLonger := 0
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skippedLines := 0
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skippedLinesLonger := 0
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for _, s := range strings.Split(whois, "\n") {
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s = strings.TrimSpace(s)
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shouldSkip := false
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shouldSkip = shouldSkip || len(s) == 0
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shouldSkip = shouldSkip || len(s) > 0 && s[0] == '#'
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shouldSkip = shouldSkip || strings.Contains(strings.ToUpper(s), "REDACTED")
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if shouldSkip {
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skippedLinesLonger++
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continue
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}
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commandResultLonger += s + "\n"
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linesLonger++
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shouldSkip = shouldSkip || len(s) > 80
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shouldSkip = shouldSkip || !strings.Contains(s, ":")
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shouldSkip = shouldSkip || strings.Index(s, ":") > 20
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if shouldSkip {
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skippedLines++
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continue
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}
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commandResult += s + "\n"
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lines++
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}
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if lines < 5 {
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commandResult = commandResultLonger
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skippedLines = skippedLinesLonger
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}
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if skippedLines > 0 {
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return commandResult + fmt.Sprintf("\n%d line(s) skipped.\n", skippedLines)
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} else {
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return commandResult
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}
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}
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