// Opens a GeoIP database by filename, all formats supported by libgeoip are
// supported though there are only functions to access some of the databases in this API.
// The database is opened in MEMORY_CACHE mode, if you need to optimize for memory
// instead of performance you should change this.
// If you don't pass a filename, it will try opening the database from
// a list of common paths.
func Open(files ...string) (*GeoIP, error) {
if len(files) == 0 {
files = []string{
"/usr/share/GeoIP/GeoIP.dat", // Linux default
"/usr/share/local/GeoIP/GeoIP.dat", // source install?
"/usr/local/share/GeoIP/GeoIP.dat", // FreeBSD
"/opt/local/share/GeoIP/GeoIP.dat", // MacPorts
"/usr/share/GeoIP/GeoIP.dat", // ArchLinux
}
}
g := &GeoIP{}
runtime.SetFinalizer(g, (*GeoIP).free)
var err error
for _, file := range files {
// libgeoip prints errors if it can't open the file, so check first
if _, err := os.Stat(file); err != nil {
if os.IsExist(err) {
log.Println(err)
}
continue
}
cbase := C.CString(file)
defer C.free(unsafe.Pointer(cbase))
g.db, err = C.GeoIP_open(cbase, C.GEOIP_MEMORY_CACHE)
if g.db != nil && err != nil {
break
}
}
if err != nil {
return nil, fmt.Errorf("Error opening GeoIP database (%s): %s", files, err)
}
if g.db == nil {
return nil, fmt.Errorf("Didn't open GeoIP database (%s)", files)
}
C.GeoIP_set_charset(g.db, C.GEOIP_CHARSET_UTF8)
return g, nil
}
// OpenType opens a specified GeoIP database type in the default location. Constants
// are defined for each database type (for example GEOIP_COUNTRY_EDITION).
func OpenType(dbType int) (*GeoIP, error) {
g := &GeoIP{}
runtime.SetFinalizer(g, (*GeoIP).free)
var err error
g.db, err = C.GeoIP_open_type(C.int(dbType), C.GEOIP_MEMORY_CACHE)
if err != nil {
return nil, fmt.Errorf("Error opening GeoIP database (%d): %s", dbType, err)
}
if g.db == nil {
return nil, fmt.Errorf("Didn't open GeoIP database (%d)", dbType)
}
C.GeoIP_set_charset(g.db, C.GEOIP_CHARSET_UTF8)
return g, nil
}
// Open opens a GeoIP database, all formats supported by libgeoip are supported though
// there are only functions to access the country information in this API.
// The database is opened in MEMORY_CACHE mode, if you need to optimize for memory
// instead of performance you should change this.
// If you don't pass a filename, it will try opening the database from
// a list of common paths.
func Open(files ...string) *GeoIP {
if len(files) == 0 {
files = []string{
"/usr/share/GeoIP/GeoIP.dat", // Linux default
"/usr/share/local/GeoIP/GeoIP.dat", // source install?
"/usr/local/share/GeoIP/GeoIP.dat", // FreeBSD
"/opt/local/share/GeoIP/GeoIP.dat", // MacPorts
}
}
g := &GeoIP{}
var err error
for _, file := range files {
// libgeoip prints errors if it can't open the file, so check first
if _, err := os.Stat(file); err != nil {
if os.IsExist(err) {
log.Println(err)
}
continue
}
cbase := C.CString(file)
g.db, err = C.GeoIP_open(cbase, C.GEOIP_MEMORY_CACHE)
C.free(unsafe.Pointer(cbase))
if g.db != nil && err != nil {
break
}
}
if err != nil && !Quiet {
log.Println("Error opening GeoIP database", files, err)
}
if g.db != nil {
C.GeoIP_set_charset(g.db, C.GEOIP_CHARSET_UTF8)
return g
}
return nil
}
