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feat: use embed geoip database (#396)
* feat: use embed geoip database * mention ipinfo * only read once * comments comments * chore: installer version --------- Co-authored-by: naiba <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| stub |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| package geoip | ||
|
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||
| import ( | ||
| "embed" | ||
| "fmt" | ||
| "log" | ||
| "net" | ||
| "strings" | ||
|
|
||
| maxminddb "github.com/oschwald/maxminddb-golang" | ||
| ) | ||
|
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| //go:embed geoip.db | ||
| var geoDBFS embed.FS | ||
|
|
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| var ( | ||
| dbData []byte | ||
| err error | ||
| ) | ||
|
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| type IPInfo struct { | ||
| Country string `maxminddb:"country"` | ||
| CountryName string `maxminddb:"country_name"` | ||
| Continent string `maxminddb:"continent"` | ||
| ContinentName string `maxminddb:"continent_name"` | ||
| } | ||
|
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| func init() { | ||
| dbData, err = geoDBFS.ReadFile("geoip.db") | ||
| if err != nil { | ||
| log.Printf("NEZHA>> Failed to open geoip database: %v", err) | ||
| } | ||
| } | ||
|
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| func Lookup(ip net.IP, record *IPInfo) (string, error) { | ||
| db, err := maxminddb.FromBytes(dbData) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| defer db.Close() | ||
|
|
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| err = db.Lookup(ip, record) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
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| if record.Country != "" { | ||
| return strings.ToLower(record.Country), nil | ||
| } else if record.Continent != "" { | ||
| return strings.ToLower(record.Continent), nil | ||
| } | ||
|
|
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| return "", fmt.Errorf("IP not found") | ||
| } |
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