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mobileprovider.go
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mobileprovider.go
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/*
* Copyright (C) 2014 ~ 2018 Deepin Technology Co., Ltd.
*
* Author: jouyouyun <jouyouwen717@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package mobileprovider
import (
"encoding/xml"
"fmt"
"io/ioutil"
"strings"
"sync"
)
const mobileServiceProvidersXMLFile = "/usr/share/mobile-broadband-provider-info/serviceproviders.xml"
var (
errCountryNotFound = fmt.Errorf("country not found")
errProviderNotFound = fmt.Errorf("provider not found")
errGSMNotFound = fmt.Errorf("gsm not found")
errCDMANotFound = fmt.Errorf("cdma not found")
errAPNNotFound = fmt.Errorf("apn not found")
errPlanNotFound = fmt.Errorf("plan not found")
)
var mobileProviderDatabase *MobileServiceProviderDatabase
var mobileProviderDatabaseLock sync.Mutex
// GetMobileProviderDatabase return mobile service provider's database
// that marshaled from serviceproviders.xml.
func GetMobileProviderDatabase() (*MobileServiceProviderDatabase, error) {
mobileProviderDatabaseLock.Lock()
defer mobileProviderDatabaseLock.Unlock()
if mobileProviderDatabase != nil {
return mobileProviderDatabase, nil
}
mobileProviderDatabase = &MobileServiceProviderDatabase{}
xmlContent, err := ioutil.ReadFile(mobileServiceProvidersXMLFile)
if err != nil {
return mobileProviderDatabase, err
}
err = xml.Unmarshal(xmlContent, mobileProviderDatabase)
return mobileProviderDatabase, err
}
// GetAllCountryCode return all country code that provide mobile
// service.
func GetAllCountryCode() (codeList []string, err error) {
database, err := GetMobileProviderDatabase()
if err != nil {
return
}
for _, c := range database.Countries {
codeList = append(codeList, strings.ToUpper(c.Code))
}
return
}
// GetProviders return all providers in target country.
func GetProviders(countryCode string) (providers []*Provider, err error) {
database, err := GetMobileProviderDatabase()
if err != nil {
return
}
found := false
for _, c := range database.Countries {
if strings.ToUpper(c.Code) == strings.ToUpper(countryCode) {
found = true
providers = c.Providers
break
}
}
if !found {
err = errCountryNotFound
}
return
}
// GetProvider return the provider information that matched the provided country
// code and provider name.
func GetProvider(countryCode, providerName string) (provider *Provider, err error) {
providers, err := GetProviders(countryCode)
if err != nil {
return
}
found := false
for _, p := range providers {
if p.Name.Body == providerName {
found = true
provider = p
break
}
}
if !found {
err = errProviderNotFound
}
return
}
// GetGSM return the gsm information that matched the provided country
// code and provider name.
func GetGSM(countryCode, providerName string) (gsm *GSM, err error) {
provider, err := GetProvider(countryCode, providerName)
if err != nil {
return
}
gsm = provider.GSM
if gsm == nil {
err = errGSMNotFound
}
return
}
// GetCDMA return the cdma information that match the provided
// country code and provider name.
func GetCDMA(countryCode, providerName string) (cdma *CDMA, err error) {
provider, err := GetProvider(countryCode, providerName)
if err != nil {
return
}
cdma = provider.CDMA
if cdma == nil {
err = errCDMANotFound
}
return
}
// GetGSMForNetworkID return the gsm information that match the mcc
// and mnc.
func GetGSMForNetworkID(mcc, mnc string) (gsm *GSM, err error) {
database, err := GetMobileProviderDatabase()
if err != nil {
return
}
found := false
outside:
for _, c := range database.Countries {
for _, p := range c.Providers {
if p.GSM != nil {
for _, id := range p.GSM.NetworkID {
if id.MCC == mcc && id.MNC == mnc {
found = true
gsm = p.GSM
break outside
}
}
}
}
}
if !found {
err = errGSMNotFound
}
return
}
// GetAPN return the apn information that match the provided
// country code, provider name and apn value.
func GetAPN(countryCode, providerName, apnValue, apnUsageType string) (apn *APN, err error) {
gsm, err := GetGSM(countryCode, providerName)
if err != nil {
return
}
found := false
for _, a := range gsm.APN {
if a.Value == apnValue && GetAPNUsageType(a) == apnUsageType {
found = true
apn = a
}
}
if !found {
err = errAPNNotFound
}
return
}
// GetAPNName return apn's default name, if not exist, return empty
// string.
func GetAPNName(apn *APN) (name string) {
if len(apn.Name) == 0 {
return
}
name = apn.Name[0].Body
return
}
// GetAPNUsageType return apn's usage type, if not exist, return empty
// string.
func GetAPNUsageType(apn *APN) (usageType string) {
if apn.Usage == nil {
return
}
usageType = apn.Usage.Type
return
}
// GetProviderNames return all provider names in target country.
func GetProviderNames(countryCode string) (names []string, err error) {
providers, err := GetProviders(countryCode)
if err != nil {
return
}
for _, p := range providers {
names = append(names, p.Name.Body)
}
return
}
// GetDefaultProvider return the default provider in target country,
// usually is the first provider.
func GetDefaultProvider(countryCode string) (defaultProvider string, err error) {
providers, err := GetProviderNames(countryCode)
if err != nil {
return
}
if len(providers) > 0 {
defaultProvider = providers[0]
} else {
err = errProviderNotFound
}
return
}