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gaore-common-sdk-go/sdk/client.go

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package sdk
import (
"bytes"
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"context"
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"crypto/tls"
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"fmt"
"golib.gaore.com/GaoreGo/gaore-common-sdk-go/sdk/auth"
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"golib.gaore.com/GaoreGo/gaore-common-sdk-go/sdk/auth/credentials"
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"golib.gaore.com/GaoreGo/gaore-common-sdk-go/sdk/requests"
"golib.gaore.com/GaoreGo/gaore-common-sdk-go/sdk/responses"
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"golib.gaore.com/GaoreGo/gaore-common-sdk-go/sdk/utils"
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"net"
"net/http"
"net/http/httputil"
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"net/url"
"os"
"regexp"
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"runtime"
"strings"
"time"
)
var Version = "0.0.1"
var defaultConnectTimeout = 5 * time.Second
var defaultReadTimeout = 10 * time.Second
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var defaultDomain = ".gaore.com"
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var DefaultUserAgent = fmt.Sprintf("GaoreGoSdk (%s;%s) Golang/%s Core/%s", runtime.GOOS, runtime.GOARCH, strings.Trim(runtime.Version(), "go"), Version)
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var debug utils.Debug
func init() {
debug = utils.Init("sdk")
}
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type Client struct {
Host string
httpClient *http.Client
isInsecure bool
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signer auth.Signer
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readTimeout time.Duration
connectTimeout time.Duration
config *Config
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httpProxy string
httpsProxy string
noProxy string
}
func (client *Client) GetNoProxy() string {
return client.noProxy
}
func (client *Client) SetNoProxy(noProxy string) {
client.noProxy = noProxy
}
func (client *Client) GetHttpsProxy() string {
return client.httpsProxy
}
func (client *Client) SetHttpsProxy(httpsProxy string) {
client.httpsProxy = httpsProxy
}
func (client *Client) SetHttpProxy(httpProxy string) {
client.httpProxy = httpProxy
}
func (client *Client) GetHttpProxy() string {
return client.httpProxy
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}
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func (client *Client) GetHTTPSInsecure() bool {
return client.isInsecure
}
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func (client *Client) InitClientConfig() (config *Config) {
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if client.config != nil {
return client.config
} else {
return NewConfig()
}
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}
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func (client *Client) Init() (err error) {
return client.InitWithAccessKey("", "", "")
}
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func (client *Client) InitWithAccessKey(accessKeyId, accessKeySecret, accessKeyFrom string) (err error) {
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config := client.InitWithConfig()
credential := &credentials.BaseCredential{
AccessKeyId: accessKeyId,
AccessKeySecret: accessKeySecret,
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AccessKeyFrom: accessKeyFrom,
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}
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return client.InitWithOptions(config, credential)
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}
func (client *Client) InitWithAliAppcode(accessKeyId, accessKeySecret string, env ...string) (err error) {
config := client.InitWithConfig()
credential := credentials.NewAliAppcodeCredential(accessKeyId, accessKeySecret)
if len(env) > 0 {
config.Env = env[0]
}
return client.InitWithOptions(config, credential)
}
func (client *Client) InitWithStsToken(accessKeyId, accessKeySecret, accessKeyFrom string) (err error) {
config := client.InitWithConfig()
credential := &credentials.StdTokenCredential{
AccessKeyId: accessKeyId,
AccessKeySecret: accessKeySecret,
AccessKeyFrom: accessKeyFrom,
}
return client.InitWithOptions(config, credential)
}
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func (client *Client) InitWithOptions(config *Config, credential auth.Credential) (err error) {
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client.httpClient = &http.Client{}
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client.config = config
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if config.Transport != nil {
client.httpClient.Transport = config.Transport
} else if config.HttpTransport != nil {
client.httpClient.Transport = config.HttpTransport
}
if config.Timeout > 0 {
client.httpClient.Timeout = config.Timeout
}
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client.signer, err = auth.NewSignerWithCredential(credential, client.ProcessCommonRequestWithSigner)
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return
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}
func (client *Client) InitWithConfig() (config *Config) {
if client.config != nil {
return client.config
} else {
return NewConfig()
}
}
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func (client *Client) ProcessCommonRequestWithSigner(request *requests.CommonRequest, signerInterface interface{}) (response *responses.CommonResponse, err error) {
if signer, isSigner := signerInterface.(auth.Signer); isSigner {
response = responses.NewCommonResponse()
err = client.DoActionWithSigner(request, response, signer)
return
}
panic("should not be here")
}
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func Timeout(connectTimeout time.Duration) func(ctx context.Context, net, addr string) (c net.Conn, err error) {
return func(ctx context.Context, network, address string) (c net.Conn, err error) {
return (&net.Dialer{
Timeout: connectTimeout,
DualStack: true,
}).DialContext(ctx, network, address)
}
}
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func (client *Client) setTimeOut(request requests.AcsRequest) {
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readTimeout, connectTimeout := client.getTimeOut(request)
client.httpClient.Timeout = readTimeout
if trans, ok := client.httpClient.Transport.(*http.Transport); ok && trans != nil {
trans.DialContext = Timeout(connectTimeout)
client.httpClient.Transport = trans
} else if client.httpClient.Transport == nil {
client.httpClient.Transport = &http.Transport{
DialContext: Timeout(connectTimeout),
}
}
}
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func (client *Client) getTimeOut(request requests.AcsRequest) (time.Duration, time.Duration) {
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readTimeOut := defaultReadTimeout
connectTimeOut := defaultConnectTimeout
reqReadTimeout := request.GetReadTimeout()
reqConnectTimeout := request.GetConnectTimeout()
if reqReadTimeout != 0*time.Millisecond {
readTimeOut = reqReadTimeout
} else if client.readTimeout != 0*time.Microsecond {
readTimeOut = client.readTimeout
} else if client.httpClient.Timeout != 0 {
readTimeOut = client.httpClient.Timeout
}
if reqConnectTimeout != 0*time.Microsecond {
connectTimeOut = reqConnectTimeout
} else if client.connectTimeout != 0*time.Millisecond {
connectTimeOut = client.connectTimeout
}
return readTimeOut, connectTimeOut
}
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func (client *Client) getHTTPSInsecure(request requests.AcsRequest) (insecure bool) {
if request.GetHTTPSInsecure() != nil {
insecure = *request.GetHTTPSInsecure()
} else {
insecure = client.GetHTTPSInsecure()
}
return
}
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func (client *Client) DoAction(request requests.AcsRequest, response responses.AcsResponse) (err error) {
return client.DoActionWithSigner(request, response, nil)
}
func (client *Client) DoActionWithSigner(request requests.AcsRequest, response responses.AcsResponse, signer auth.Signer) (err error) {
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httpRequest, err := client.buildRequestWithSigner(request, signer)
if err != nil {
return err
}
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client.setTimeOut(request)
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proxy, err := client.getHttpProxy(httpRequest.URL.Scheme)
if err != nil {
return err
}
noProxy := client.getNoProxy(httpRequest.URL.Scheme)
var flag bool
for _, value := range noProxy {
if strings.HasPrefix(value, "*") {
value = fmt.Sprint(".%s", value)
}
noProxyReg, err := regexp.Compile(value)
if err != nil {
return err
}
if noProxyReg.MatchString(httpRequest.Host) {
flag = true
break
}
}
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if trans, ok := client.httpClient.Transport.(*http.Transport); ok && trans != nil {
if trans.TLSClientConfig != nil {
trans.TLSClientConfig.InsecureSkipVerify = client.getHTTPSInsecure(request)
} else {
trans.TLSClientConfig = &tls.Config{
InsecureSkipVerify: client.getHTTPSInsecure(request),
}
}
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if proxy != nil && !flag {
trans.Proxy = http.ProxyURL(proxy)
}
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client.httpClient.Transport = trans
}
dump, err := httputil.DumpRequest(httpRequest, true)
debug("client %s", bytes.NewBuffer(dump).String())
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var httpResponse *http.Response
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httpResponse, err = hookDo(client.httpClient.Do)(httpRequest)
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if err != nil {
return
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}
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err = responses.Unmarshal(response, httpResponse, request.GetAcceptFormat())
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return
}
func (client *Client) buildRequestWithSigner(request requests.AcsRequest, signer auth.Signer) (httpRequest *http.Request, err error) {
// init param
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domain := request.GetDomain()
if strings.Index(domain.Default, ".") < 0 {
domain.Default += defaultDomain
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request.SetDomain(domain)
}
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if request.GetScheme() == "" {
request.SetScheme(client.config.Scheme)
}
if request.GetEnv() == "" && client.config.Env != "" {
request.SetEnv(client.config.Env)
}
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err = requests.InitParam(request)
if err != nil {
return
}
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// build signature
var finalSigner auth.Signer
if signer != nil {
finalSigner = signer
} else {
finalSigner = client.signer
}
err = auth.Sign(request, finalSigner)
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if err != nil {
return
}
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// build request
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requestMethod := request.GetMethod()
requestUrl := request.BuildUrl()
body := request.GetBodyReader()
httpRequest, err = http.NewRequest(requestMethod, requestUrl, body)
if err != nil {
return
}
for key, val := range request.GetHeaders() {
httpRequest.Header[key] = []string{val}
}
if host, isContainsHost := request.GetHeaders()["host"]; isContainsHost {
httpRequest.Host = host
}
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userAgent := DefaultUserAgent
httpRequest.Header.Set("User-Agent", userAgent)
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return
}
func (client *Client) getHttpProxy(scheme string) (proxy *url.URL, err error) {
switch scheme {
case "https":
if client.GetHttpsProxy() != "" {
proxy, err = url.Parse(client.httpsProxy)
} else if rawurl := os.Getenv("HTTPS_PROXY"); rawurl != "" {
proxy, err = url.Parse(rawurl)
} else if rawurl := os.Getenv("https_proxy"); rawurl != "" {
proxy, err = url.Parse(rawurl)
}
default:
if client.GetHttpProxy() != "" {
proxy, err = url.Parse(client.httpProxy)
} else if rawurl := os.Getenv("HTTP_PROXY"); rawurl != "" {
proxy, err = url.Parse(rawurl)
} else if rawurl := os.Getenv("http_proxy"); rawurl != "" {
proxy, err = url.Parse(rawurl)
}
}
return
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}
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func (client *Client) getNoProxy(scheme string) []string {
var urls []string
if client.GetNoProxy() != "" {
urls = strings.Split(client.noProxy, ",")
} else if rawurl := os.Getenv("NO_PROXY"); rawurl != "" {
urls = strings.Split(rawurl, ",")
} else if rawurl := os.Getenv("no_proxy"); rawurl != "" {
urls = strings.Split(rawurl, ",")
}
return urls
}
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func hookDo(fn func(req *http.Request) (*http.Response, error)) func(req *http.Request) (*http.Response, error) {
return fn
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}