commit ad649555c4937ed5cacb401c3c4ef3ad614fab34
Author: gazebo <gazeboxu@gmail.com>
Date:   Tue Jun 5 16:57:27 2018 +0800

    - first edition.

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..d3bffdfe
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,14 @@
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+.DS_Store
+*.test
diff --git a/platform/jdapi/jdapi.go b/platform/jdapi/jdapi.go
new file mode 100644
index 00000000..0d3f1ffb
--- /dev/null
+++ b/platform/jdapi/jdapi.go
@@ -0,0 +1,346 @@
+package jdapi
+
+import (
+	"crypto/md5"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"net"
+	"net/http"
+	"net/url"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+
+	"git.rosy.net.cn/baseapi/utils"
+	"github.com/satori/go.uuid"
+	"go.uber.org/zap"
+)
+
+type JDAPI struct {
+	token       string
+	appKey      string
+	appSecret   string
+	logger      *zap.Logger
+	sugarLogger *zap.SugaredLogger
+	client      http.Client
+}
+
+const (
+	sleepSecondWhenLimited            = 6 * time.Second
+	maxRetryCountWhenNetworkException = 3
+	maxRetryCountWhenReachLimited     = 10
+	jdAPIURL                          = "https://openo2o.jd.com/djapi/%s"
+	AllPage                           = 0
+	DefaultPageSize                   = 50
+)
+
+var (
+	ErrJdParam            = errors.New("can not marshal jd param")
+	ErrSystemErrMaxRetry  = errors.New("JD System error reach max retry count!")
+	ErrLimitReachMaxRetry = errors.New("JD Reach max retry count!")
+	ErrHttpCode           = errors.New("JD HTTP Code is not 200")
+	ErrFormatWrong        = errors.New("JD Result format is strange!")
+	ErrJDCode             = errors.New("JD code is not 0")
+	ErrInnerCodeIsNotOk   = errors.New("JD result inner code is not ok")
+
+	exceedLimitCodes = map[string]int{
+		"10032": 1,
+	}
+	canRetryCodes = map[string]int{
+		"-10000": 1,
+		"-1":     1,
+		"10000":  1,
+		"100022": 1,
+		"100023": 1,
+		"100024": 1,
+	}
+
+	jdResultInnerCodeKeys = []string{"code", "retCode", "errorCode"}
+
+	jdResultInnerCodeOK = map[string]int{
+		"None":   1,
+		"0":      1,
+		"1":      1,
+		"190005": 1, // 部分失败
+	}
+
+	jdResultNoPageInnerDataKeys = []string{"result", "data"}
+	jdResultPageInner2DataKeys  = []string{"result", "resultList"}
+	jdResultPageTotalCountKeys  = []string{"totalCount", "count"}
+)
+
+type PageResultParser func(map[string]interface{}, int) ([]interface{}, int)
+
+func getUUID() string {
+	return strings.ToUpper(strings.Replace(uuid.Must(uuid.NewV1()).String(), "-", "", -1))
+}
+
+func getJDOperator() string {
+	return time.Now().Format("2006-01-02_15:04:05")
+}
+
+func getCurTimeStr() string {
+	// return "2018-06-04 22:35:25"
+	return time.Now().Format("2006-01-02 15:04:05")
+}
+
+func SignParams(jdParams map[string]string) string {
+	var keys []string
+	for k := range jdParams {
+		if k != "app_secret" {
+			keys = append(keys, k)
+		}
+	}
+
+	sort.Strings(keys)
+	allStr := ""
+	for _, k := range keys {
+		allStr += k + jdParams[k]
+	}
+	allStr = jdParams["app_secret"] + allStr + jdParams["app_secret"]
+
+	return fmt.Sprintf("%X", md5.Sum([]byte(allStr)))
+}
+
+func genGetURL(baseURL, apiStr string, params map[string]string) string {
+	fullURL := ""
+
+	if params != nil {
+		for k, v := range params {
+			if fullURL == "" {
+				fullURL = "?"
+			} else {
+				fullURL += "&"
+			}
+			fullURL += k + "=" + url.QueryEscape(v)
+		}
+	}
+
+	return fmt.Sprintf(baseURL, apiStr) + fullURL
+}
+
+func NewJDAPI(token, appKey, appSecret string, logger *zap.Logger) *JDAPI {
+	return &JDAPI{token, appKey, appSecret, logger, logger.Sugar(), http.Client{Timeout: time.Second * 10}}
+}
+
+func (j JDAPI) accessJDQuery(apiStr string, jdParams map[string]string) (result map[string]interface{}, err error) {
+	params := make(map[string]string)
+	params["v"] = "1.0"
+	params["format"] = "json"
+	params["app_key"] = j.appKey
+	params["app_secret"] = j.appSecret
+	params["token"] = j.token
+
+	if jdParams == nil {
+		jdParams = make(map[string]string, 0)
+	}
+	jdParamStr, err := json.Marshal(jdParams)
+	if err == nil {
+		params["jd_param_json"] = string(jdParamStr)
+	} else {
+		return nil, ErrJdParam
+	}
+
+	params["timestamp"] = getCurTimeStr()
+	sign := SignParams(params)
+	params["sign"] = sign
+
+	exceedLimitRetryCount := 0
+	systemErrorRetryCount := 0
+	for {
+		fullURL := genGetURL(jdAPIURL, apiStr, params)
+		j.sugarLogger.Debugf("fullURL:%v", fullURL)
+		response, err := j.client.Get(fullURL)
+		if err != nil {
+			j.sugarLogger.Debugf("client.Get return err:%v", err)
+			err, ok := err.(net.Error)
+			systemErrorRetryCount++
+			if ok && err.Timeout() && systemErrorRetryCount <= maxRetryCountWhenNetworkException {
+				continue
+			} else {
+				return nil, err
+			}
+		}
+		defer response.Body.Close()
+
+		if response.StatusCode != 200 {
+			j.sugarLogger.Debugf("http code is:%d", response.StatusCode)
+			systemErrorRetryCount++
+			if systemErrorRetryCount <= maxRetryCountWhenNetworkException {
+				continue
+			}
+
+			return nil, ErrHttpCode
+		}
+
+		var jsonResult map[string]interface{}
+		bodyData, err := ioutil.ReadAll(response.Body)
+		if err != nil {
+			j.sugarLogger.Debugf("ioutil.ReadAll return:%v", err)
+			return nil, err
+		}
+
+		err = utils.UnmarshalUseNumber(bodyData, &jsonResult)
+		if err != nil {
+			j.sugarLogger.Debugf("json.Unmarshal return:%v", err)
+			return nil, err
+		}
+
+		code := jsonResult["code"].(string)
+		if code == "0" {
+			return jsonResult, nil
+		}
+		j.sugarLogger.Debugf("jd code is:%s", code)
+		if _, ok := exceedLimitCodes[code]; ok {
+			exceedLimitRetryCount++
+			if exceedLimitRetryCount <= maxRetryCountWhenReachLimited {
+				time.Sleep(sleepSecondWhenLimited)
+			} else {
+				return jsonResult, ErrLimitReachMaxRetry
+			}
+		} else if _, ok := canRetryCodes[code]; ok {
+			systemErrorRetryCount++
+			if systemErrorRetryCount > maxRetryCountWhenNetworkException {
+				return jsonResult, ErrSystemErrMaxRetry
+			}
+		} else {
+			return jsonResult, ErrJDCode
+		}
+	}
+}
+
+func (j JDAPI) accessJDQueryNoPage(apiStr string, jdParams map[string]string, keyToRemove, keyToKeep []string) (interface{}, error) {
+	jsonResult, err := j.accessJDQuery(apiStr, jdParams)
+	if err != nil {
+		return jsonResult, err
+	}
+
+	var data map[string]interface{}
+	err = utils.UnmarshalUseNumber([]byte(jsonResult["data"].(string)), &data)
+
+	if err != nil {
+		return jsonResult, err
+	}
+
+	innerCode := ""
+	for _, innerCodeKey := range jdResultInnerCodeKeys {
+		if innerCode2, ok := data[innerCodeKey]; ok {
+			innerCode = innerCode2.(string)
+			break
+		}
+	}
+
+	if _, ok := jdResultInnerCodeOK[innerCode]; ok {
+		for _, innerDataKey := range jdResultNoPageInnerDataKeys {
+			if innerData, ok := data[innerDataKey]; ok {
+				return innerData, nil
+			}
+		}
+		panic("Can not find inner data")
+	} else {
+		return utils.DictKeysMan(jsonResult, keyToRemove, keyToKeep), ErrInnerCodeIsNotOk
+	}
+}
+
+func (j JDAPI) accessJDQueryHavePage(apiStr string, jdParams map[string]string, keyToRemove, keyToKeep []string, pageNo, pageSize int, pageResultParser PageResultParser) (interface{}, error) {
+	normalJDQueryHavePageResultParser := func(data map[string]interface{}, totalCount int) ([]interface{}, int) {
+		var result map[string]interface{}
+		var retVal []interface{}
+
+		tempResult := data["result"]
+		if resultStr, ok := tempResult.(string); ok {
+			if err := utils.UnmarshalUseNumber([]byte(resultStr), &tempResult); err != nil {
+				panic("Wrong format")
+			}
+		}
+
+		result = tempResult.(map[string]interface{})
+
+		if totalCount == 0 {
+			for _, totalCountKey := range jdResultPageTotalCountKeys {
+				if totalCount2, ok := result[totalCountKey]; ok {
+					totalCountInt64, _ := totalCount2.(json.Number).Int64()
+					totalCount = int(totalCountInt64)
+					if totalCount == 0 {
+						return make([]interface{}, 0), 0
+					}
+					break
+				}
+			}
+			if totalCount == 0 {
+				panic("can not find totalCount key")
+			}
+		}
+
+		for _, inner2ResultKey := range jdResultPageInner2DataKeys {
+			if inner2Result, ok := result[inner2ResultKey]; ok {
+
+				if inner2ResultStr, ok := inner2Result.(string); ok {
+					err := utils.UnmarshalUseNumber([]byte(inner2ResultStr), &retVal)
+					if err != nil {
+						panic("can not unmarshal inner2result")
+					}
+				} else {
+					retVal = inner2Result.([]interface{})
+				}
+
+				return retVal, totalCount
+			}
+		}
+
+		panic("wrong format")
+	}
+
+	if pageResultParser == nil {
+		pageResultParser = normalJDQueryHavePageResultParser
+	}
+
+	totalCount := 0
+	curPage := pageNo
+	if curPage == AllPage {
+		curPage = 1
+	}
+
+	retVal := make([]interface{}, 0)
+	localJdParams := make(map[string]string)
+	if jdParams != nil && len(jdParams) > 0 {
+		for k, v := range jdParams {
+			localJdParams[k] = v
+		}
+	}
+	for {
+		localJdParams["pageNo"] = strconv.FormatInt(int64(curPage), 10)
+		localJdParams["pageSize"] = strconv.FormatInt(int64(pageSize), 10)
+		jsonResult, err := j.accessJDQuery(apiStr, localJdParams)
+		if err != nil {
+			return nil, err
+		}
+		var data map[string]interface{}
+		err = utils.UnmarshalUseNumber([]byte(jsonResult["data"].(string)), &data)
+
+		if err != nil {
+			return nil, err
+		}
+
+		innerCode := data["code"].(string)
+		if innerCode != "0" && innerCode != "200" {
+			return nil, ErrInnerCodeIsNotOk
+		}
+
+		inResult, totalCount2 := pageResultParser(data, totalCount)
+		totalCount = totalCount2
+
+		inResult = utils.DictKeysMan(inResult, keyToRemove, keyToKeep).([]interface{})
+		retVal = append(retVal, inResult...)
+
+		if curPage == pageNo || curPage*pageSize >= totalCount {
+			break
+		}
+		curPage++
+	}
+
+	return retVal, nil
+}
diff --git a/platform/jdapi/jdapi_test.go b/platform/jdapi/jdapi_test.go
new file mode 100644
index 00000000..ac2c0fad
--- /dev/null
+++ b/platform/jdapi/jdapi_test.go
@@ -0,0 +1,79 @@
+package jdapi
+
+import (
+	"net/http"
+	"testing"
+
+	"go.uber.org/zap"
+)
+
+var (
+	jdapi       *JDAPI
+	sugarLogger *zap.SugaredLogger
+)
+
+func init() {
+	logger, _ := zap.NewDevelopment()
+	sugarLogger = logger.Sugar()
+	jdapi = NewJDAPI("91633f2a-c5f5-4982-a925-a220d19095c3", "1dba76d40cac446ca500c0391a0b6c9d", "a88d031a1e7b462cb1579f12e97fe7f4", logger)
+}
+
+func TestTest(t *testing.T) {
+	sugarLogger.Debug(getCurTimeStr())
+}
+
+func TestAccessJDQuery(t *testing.T) {
+	result, err := jdapi.accessJDQuery("address/allcities", nil)
+	if err != nil {
+		t.Fatalf("Error when accessing accessJDQuery: %v", err)
+	} else {
+		code := result["code"].(string)
+		if code != "0" {
+			t.Fatalf("code is not 0, %v", code)
+		}
+	}
+}
+
+func TestAccessJDQueryNoPage(t *testing.T) {
+	result, err := jdapi.accessJDQueryNoPage("address/allcities", nil, nil, nil)
+	if err != nil {
+		t.Fatalf("accessJDQueryNoPage return error:%v", err)
+	}
+	cityInfo := result.([]interface{})
+	if len(cityInfo) == 0 {
+		t.Fatal("city info is empty")
+	}
+	oneCity := cityInfo[0].(map[string]interface{})
+	if _, ok := oneCity["areaName"]; !ok {
+		t.Fatal("no areaName key")
+	}
+}
+
+func TestAccessJDQueryHavePage(t *testing.T) {
+	result, err := jdapi.accessJDQueryHavePage("pms/querySkuInfos", nil, nil, nil, 1, 50, nil)
+	if err != nil {
+		t.Fatalf("accessJDQueryHavePage return error:%v", err)
+	}
+	skuInfo := result.([]interface{})
+	if len(skuInfo) == 0 {
+		t.Fatal("city info is empty")
+	}
+	oneSku := skuInfo[0].(map[string]interface{})
+	if _, ok := oneSku["skuName"]; !ok {
+		t.Fatal("no skuName key")
+	}
+}
+
+func TestGenGetURL(t *testing.T) {
+	params := make(map[string]string)
+	params["key"] = "v"
+	params["key2"] = "v2"
+
+	fullURL := genGetURL(jdAPIURL, "address/allcities", params)
+
+	response, err := http.Get(fullURL)
+	if err != nil {
+		t.Fatalf("Get return error:%v", err)
+	}
+	defer response.Body.Close()
+}
diff --git a/utils/utils.go b/utils/utils.go
new file mode 100644
index 00000000..faeabcf8
--- /dev/null
+++ b/utils/utils.go
@@ -0,0 +1,78 @@
+package utils
+
+import (
+	"bytes"
+	"encoding/json"
+	"reflect"
+)
+
+func DictKeysMan(data interface{}, keysToRemove []string, keysToKeep []string) interface{} {
+	if data == nil || (keysToKeep == nil && keysToRemove == nil) {
+		return data
+	}
+
+	var keysToRemoveMap map[string]int
+	var keysToKeepMap map[string]int
+	if keysToKeep != nil {
+		keysToKeepMap = make(map[string]int)
+		for _, v := range keysToKeep {
+			keysToKeepMap[v] = 1
+		}
+	} else if keysToRemove != nil {
+		keysToRemoveMap = make(map[string]int)
+		for _, v := range keysToRemove {
+			keysToRemoveMap[v] = 1
+		}
+	}
+
+	dataIsSlice := true
+	valueOfData := reflect.ValueOf(data)
+	if valueOfData.Kind() != reflect.Slice {
+		dataIsSlice = false
+		valueOfData = reflect.ValueOf([]interface{}{data})
+	} else if valueOfData.Len() == 0 {
+		return data
+	}
+
+	retVal := make([]interface{}, valueOfData.Len())
+
+	for index := 0; index < valueOfData.Len(); index++ {
+		realV := valueOfData.Index(index)
+		if realV.Kind() == reflect.Interface || realV.Kind() == reflect.Ptr {
+			realV = realV.Elem()
+		}
+		if keysToRemoveMap != nil || keysToKeepMap != nil {
+			mapV := make(map[string]interface{})
+			for _, key := range realV.MapKeys() {
+				fieldName := key.String()
+				wantThisField := true
+				if keysToKeepMap != nil {
+					if _, ok := keysToKeepMap[fieldName]; !ok {
+						wantThisField = false
+					}
+				} else if keysToRemoveMap != nil {
+					if _, ok := keysToRemoveMap[fieldName]; ok {
+						wantThisField = false
+					}
+				}
+				if wantThisField {
+					mapV[fieldName] = realV.MapIndex(key)
+				}
+			}
+			retVal[index] = mapV
+		} else {
+			retVal[index] = realV.Interface()
+		}
+	}
+
+	if !dataIsSlice {
+		return retVal[0]
+	}
+	return retVal
+}
+
+func UnmarshalUseNumber(data []byte, result interface{}) error {
+	d := json.NewDecoder(bytes.NewReader(data))
+	d.UseNumber()
+	return d.Decode(result)
+}
diff --git a/utils/utils_test.go b/utils/utils_test.go
new file mode 100644
index 00000000..87e096d6
--- /dev/null
+++ b/utils/utils_test.go
@@ -0,0 +1,35 @@
+package utils
+
+import (
+	"testing"
+)
+
+type II interface {
+	foo()
+}
+
+type TT struct {
+}
+
+func (t TT) foo() {
+
+}
+func TestDictKeysMan(t *testing.T) {
+	testData := map[string]string{"k1": "v1", "k2": "v2"}
+	result1 := DictKeysMan(testData, []string{"k1"}, nil).(map[string]interface{})
+	if _, ok := result1["k1"]; ok {
+		t.Error("Params keysToRemove can not remove key!")
+	}
+	if _, ok := result1["k2"]; !ok {
+		t.Error("Params keysToRemove removed wrong key!")
+	}
+
+	result2 := DictKeysMan([]interface{}{testData}, nil, []string{"k1"}).([]interface{})
+	result20 := result2[0].(map[string]interface{})
+	if _, ok := result20["k1"]; !ok {
+		t.Error("Params keysToKeep can not keep key!")
+	}
+	if _, ok := result20["k2"]; ok {
+		t.Error("Params keysToKeep keep wrong key!")
+	}
+}