update vendor

vendor/github.com/qiniu/api.v7/api/api.go

@@ -0,0 +1,99 @@
+package api
+
+import (
+	. "context"
+	"sync"
+	"time"
+
+	"github.com/qiniu/x/rpc.v7"
+)
+
+const DefaultApiHost string = "http://uc.qbox.me"
+
+var (
+	bucketMu    sync.RWMutex
+	bucketCache = make(map[string]BucketInfo)
+)
+
+type Client struct {
+	*rpc.Client
+	host   string
+	scheme string
+}
+
+func NewClient(host string, scheme string) *Client {
+	if host == "" {
+		host = DefaultApiHost
+	}
+	client := rpc.DefaultClient
+	return &Client{&client, host, scheme}
+}
+
+type BucketInfo struct {
+	UpHosts []string `json:"up"`
+	IoHost  string   `json:"io"`
+	Expire  int64    `json:"expire"` // expire == 0 means no expire
+}
+
+func (p *Client) GetBucketInfo(ak, bucketName string) (ret BucketInfo, err error) {
+	key := ak + ":" + bucketName + ":" + p.scheme
+	bucketMu.RLock()
+	bucketInfo, ok := bucketCache[key]
+	bucketMu.RUnlock()
+	if ok && (bucketInfo.Expire == 0 || bucketInfo.Expire > time.Now().Unix()) {
+		ret = bucketInfo
+		return
+	}
+	hostInfo, err := p.bucketHosts(ak, bucketName)
+	if err != nil {
+		return
+	}
+	ret.Expire = time.Now().Unix() + hostInfo.Ttl
+	if p.scheme == "https" {
+		ret.UpHosts = hostInfo.Https["up"]
+		if iohosts, ok := hostInfo.Https["io"]; ok && len(iohosts) != 0 {
+			ret.IoHost = iohosts[0]
+		}
+	} else {
+		ret.UpHosts = hostInfo.Http["up"]
+		if iohosts, ok := hostInfo.Http["io"]; ok && len(iohosts) != 0 {
+			ret.IoHost = iohosts[0]
+		}
+	}
+	bucketMu.Lock()
+	bucketCache[key] = ret
+	bucketMu.Unlock()
+	return
+}
+
+type HostsInfo struct {
+	Ttl   int64               `json:"ttl"`
+	Http  map[string][]string `json:"http"`
+	Https map[string][]string `json:"https"`
+}
+
+/*
+请求包：
+	GET /v1/query?ak=<ak>&&bucket=<bucket>
+返回包：
+	200 OK {
+	  "ttl": <ttl>,              // 有效时间
+	  "http": {
+	    "up": [],
+	    "io": [],                // 当bucket为global时，我们不需要iohost, io缺省
+	  },
+	  "https": {
+	    "up": [],
+	    "io": [],                // 当bucket为global时，我们不需要iohost, io缺省
+	  }
+	}
+*/
+
+func (p *Client) bucketHosts(ak, bucket string) (info HostsInfo, err error) {
+	ctx := Background()
+	err = p.CallWithForm(ctx, &info, "GET", p.host+"/v1/query", map[string][]string{
+		"ak":     []string{ak},
+		"bucket": []string{bucket},
+	})
+	return
+}