124 lines
2.2 KiB
Go
124 lines
2.2 KiB
Go
package tool
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import (
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"crypto/md5"
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"encoding/hex"
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"fmt"
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"math/rand"
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"net/url"
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"strings"
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)
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// Sign fn
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func Sign(params url.Values) (query string, err error) {
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if len(params) == 0 {
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return
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}
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if params.Get("appkey") == "" {
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err = fmt.Errorf("utils http get must have parameter appkey")
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return
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}
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if params.Get("appsecret") == "" {
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err = fmt.Errorf("utils http get must have parameter appsecret")
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return
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}
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if params.Get("sign") != "" {
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err = fmt.Errorf("utils http get must have not parameter sign")
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return
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}
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// sign
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secret := params.Get("appsecret")
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params.Del("appsecret")
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tmp := params.Encode()
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if strings.IndexByte(tmp, '+') > -1 {
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tmp = strings.Replace(tmp, "+", "%20", -1)
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}
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mh := md5.Sum([]byte(tmp + secret))
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params.Set("sign", hex.EncodeToString(mh[:]))
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query = params.Encode()
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return
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}
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//DeDuplicationSlice for del repeat element
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func DeDuplicationSlice(a []int64) (b []int64) {
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if len(a) == 0 {
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return
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}
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isHas := make(map[int64]bool)
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b = make([]int64, 0)
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for _, v := range a {
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if ok := isHas[v]; !ok {
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isHas[v] = true
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b = append(b, v)
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}
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}
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return
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}
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//ContainAll all element of a contain in the b.
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func ContainAll(a []int64, b []int64) bool {
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isHas := make(map[int64]bool)
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for _, k := range b {
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isHas[k] = true
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}
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for _, v := range a {
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if !isHas[v] {
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return false
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}
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}
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return true
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}
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//ContainAtLeastOne fn
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func ContainAtLeastOne(a []int64, b []int64) bool {
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if len(a) == 0 {
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return true
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}
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isHas := make(map[int64]bool)
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for _, k := range b {
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isHas[k] = true
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}
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for _, v := range a {
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if isHas[v] {
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return true
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}
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}
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return false
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}
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//ElementInSlice fn
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func ElementInSlice(a int64, b []int64) bool {
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if len(b) == 0 {
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return false
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}
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for _, v := range b {
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if a == v {
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return true
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}
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}
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return false
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}
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//RandomSliceKeys for get random keys from slice by rand.
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func RandomSliceKeys(start int, end int, count int, seed int64) []int {
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if end < start || (end-start) < count {
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return nil
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}
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nums := make([]int, 0)
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r := rand.New(rand.NewSource(seed))
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for len(nums) < count {
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num := r.Intn((end - start)) + start
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exist := false
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for _, v := range nums {
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if v == num {
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exist = true
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break
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}
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}
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if !exist {
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nums = append(nums, num)
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}
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}
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return nums
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}
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