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|
package common
import (
"encoding/xml"
"fmt"
"io/ioutil"
"os"
"strings"
"time"
"log"
)
const (
// LocationDefaultEndpoint is the default API endpoint of Location services
locationDefaultEndpoint = "https://location.aliyuncs.com"
locationAPIVersion = "2015-06-12"
HTTP_PROTOCOL = "http"
HTTPS_PROTOCOL = "https"
)
var (
endpoints = make(map[Region]map[string]string)
SpecailEnpoints = map[Region]map[string]string{
APNorthEast1: {
"ecs": "https://ecs.ap-northeast-1.aliyuncs.com",
"slb": "https://slb.ap-northeast-1.aliyuncs.com",
"rds": "https://rds.ap-northeast-1.aliyuncs.com",
"vpc": "https://vpc.ap-northeast-1.aliyuncs.com",
},
APSouthEast2: {
"ecs": "https://ecs.ap-southeast-2.aliyuncs.com",
"slb": "https://slb.ap-southeast-2.aliyuncs.com",
"rds": "https://rds.ap-southeast-2.aliyuncs.com",
"vpc": "https://vpc.ap-southeast-2.aliyuncs.com",
},
APSouthEast3: {
"ecs": "https://ecs.ap-southeast-3.aliyuncs.com",
"slb": "https://slb.ap-southeast-3.aliyuncs.com",
"rds": "https://rds.ap-southeast-3.aliyuncs.com",
"vpc": "https://vpc.ap-southeast-3.aliyuncs.com",
},
MEEast1: {
"ecs": "https://ecs.me-east-1.aliyuncs.com",
"slb": "https://slb.me-east-1.aliyuncs.com",
"rds": "https://rds.me-east-1.aliyuncs.com",
"vpc": "https://vpc.me-east-1.aliyuncs.com",
},
EUCentral1: {
"ecs": "https://ecs.eu-central-1.aliyuncs.com",
"slb": "https://slb.eu-central-1.aliyuncs.com",
"rds": "https://rds.eu-central-1.aliyuncs.com",
"vpc": "https://vpc.eu-central-1.aliyuncs.com",
},
Zhangjiakou: {
"ecs": "https://ecs.cn-zhangjiakou.aliyuncs.com",
"slb": "https://slb.cn-zhangjiakou.aliyuncs.com",
"rds": "https://rds.cn-zhangjiakou.aliyuncs.com",
"vpc": "https://vpc.cn-zhangjiakou.aliyuncs.com",
},
Huhehaote: {
"ecs": "https://ecs.cn-huhehaote.aliyuncs.com",
"slb": "https://slb.cn-huhehaote.aliyuncs.com",
"rds": "https://rds.cn-huhehaote.aliyuncs.com",
"vpc": "https://vpc.cn-huhehaote.aliyuncs.com",
},
}
)
//init endpoints from file
func init() {
}
type LocationClient struct {
Client
}
func NewLocationClient(accessKeyId, accessKeySecret, securityToken string) *LocationClient {
endpoint := os.Getenv("LOCATION_ENDPOINT")
if endpoint == "" {
endpoint = locationDefaultEndpoint
}
client := &LocationClient{}
client.Init(endpoint, locationAPIVersion, accessKeyId, accessKeySecret)
client.securityToken = securityToken
return client
}
func NewLocationClientWithSecurityToken(accessKeyId, accessKeySecret, securityToken string) *LocationClient {
endpoint := os.Getenv("LOCATION_ENDPOINT")
if endpoint == "" {
endpoint = locationDefaultEndpoint
}
client := &LocationClient{}
client.WithEndpoint(endpoint).
WithVersion(locationAPIVersion).
WithAccessKeyId(accessKeyId).
WithAccessKeySecret(accessKeySecret).
WithSecurityToken(securityToken).
InitClient()
return client
}
func (client *LocationClient) DescribeEndpoint(args *DescribeEndpointArgs) (*DescribeEndpointResponse, error) {
response := &DescribeEndpointResponse{}
err := client.Invoke("DescribeEndpoint", args, response)
if err != nil {
return nil, err
}
return response, err
}
func (client *LocationClient) DescribeEndpoints(args *DescribeEndpointsArgs) (*DescribeEndpointsResponse, error) {
response := &DescribeEndpointsResponse{}
err := client.Invoke("DescribeEndpoints", args, response)
if err != nil {
return nil, err
}
return response, err
}
func getProductRegionEndpoint(region Region, serviceCode string) string {
if sp, ok := endpoints[region]; ok {
if endpoint, ok := sp[serviceCode]; ok {
return endpoint
}
}
return ""
}
func setProductRegionEndpoint(region Region, serviceCode string, endpoint string) {
endpoints[region] = map[string]string{
serviceCode: endpoint,
}
}
func (client *LocationClient) DescribeOpenAPIEndpoint(region Region, serviceCode string) string {
if endpoint := getProductRegionEndpoint(region, serviceCode); endpoint != "" {
return endpoint
}
defaultProtocols := HTTP_PROTOCOL
args := &DescribeEndpointsArgs{
Id: region,
ServiceCode: serviceCode,
Type: "openAPI",
}
var endpoint *DescribeEndpointsResponse
var err error
for index := 0; index < 5; index++ {
endpoint, err = client.DescribeEndpoints(args)
if err == nil && endpoint != nil && len(endpoint.Endpoints.Endpoint) > 0 {
break
}
time.Sleep(500 * time.Millisecond)
}
if err != nil || endpoint == nil || len(endpoint.Endpoints.Endpoint) <= 0 {
log.Printf("aliyungo: can not get endpoint from service, use default. endpoint=[%v], error=[%v]\n",endpoint, err)
return ""
}
for _, protocol := range endpoint.Endpoints.Endpoint[0].Protocols.Protocols {
if strings.ToLower(protocol) == HTTPS_PROTOCOL {
defaultProtocols = HTTPS_PROTOCOL
break
}
}
ep := fmt.Sprintf("%s://%s", defaultProtocols, endpoint.Endpoints.Endpoint[0].Endpoint)
setProductRegionEndpoint(region, serviceCode, ep)
return ep
}
func loadEndpointFromFile(region Region, serviceCode string) string {
data, err := ioutil.ReadFile("./endpoints.xml")
if err != nil {
return ""
}
var endpoints Endpoints
err = xml.Unmarshal(data, &endpoints)
if err != nil {
return ""
}
for _, endpoint := range endpoints.Endpoint {
if endpoint.RegionIds.RegionId == string(region) {
for _, product := range endpoint.Products.Product {
if strings.ToLower(product.ProductName) == serviceCode {
return fmt.Sprintf("%s://%s", HTTPS_PROTOCOL, product.DomainName)
}
}
}
}
return ""
}
|
