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utils.go
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/
utils.go
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package wechat
import (
"bytes"
"crypto/sha1"
"encoding/hex"
"encoding/xml"
"errors"
"fmt"
"io"
netHttp "net/http"
"net/url"
"sort"
"strconv"
"strings"
"github.com/sohaha/zlsgo/zhttp"
"github.com/sohaha/zlsgo/zjson"
"github.com/sohaha/zlsgo/zstring"
"github.com/sohaha/zlsgo/ztype"
"github.com/sohaha/zlsgo/zutil"
)
type (
// SendData Send Data
SendData ztype.Map
request struct {
request *netHttp.Request
rawData []byte
}
)
func transformSendData(v []interface{}) []interface{} {
for i := range v {
switch val := v[i].(type) {
case string:
v[i] = val
case map[string]string, SendData, map[string]interface{}, ztype.Map:
v[i] = zhttp.BodyJSON(val)
}
}
return v
}
func recurveFormatMap2XML(buf io.Writer, m ztype.Map) {
for k := range m {
_, _ = io.WriteString(buf, fmt.Sprintf("<%s>", k))
v := m.Get(k)
switch val := v.Value().(type) {
case ztype.Maps:
io.WriteString(buf, "<item>")
for _, vs := range val {
recurveFormatMap2XML(buf, vs)
}
io.WriteString(buf, "</item>")
case ztype.Map:
recurveFormatMap2XML(buf, val)
default:
if err := xml.EscapeText(buf, zstring.String2Bytes(m.Get(k).String())); err != nil {
return
}
}
_, _ = io.WriteString(buf, fmt.Sprintf("</%s>", k))
}
}
func FormatMap2XML(m ztype.Map) (string, error) {
buf := zutil.GetBuff()
defer zutil.PutBuff(buf)
if _, err := io.WriteString(buf, "<xml>"); err != nil {
return "", err
}
for k, v := range m {
if _, err := io.WriteString(buf, fmt.Sprintf("<%s>", k)); err != nil {
return "", err
}
switch val := v.(type) {
case ztype.Map:
recurveFormatMap2XML(buf, val)
case ztype.Maps:
io.WriteString(buf, "<item>")
for _, vs := range val {
recurveFormatMap2XML(buf, vs)
}
io.WriteString(buf, "</item>")
default:
if err := xml.EscapeText(buf, zstring.String2Bytes(ztype.ToString(val))); err != nil {
return "", err
}
}
_, _ = io.WriteString(buf, fmt.Sprintf("</%s>", k))
}
_, _ = io.WriteString(buf, "</xml>")
return buf.String(), nil
}
// ParseXML2Map parse xml to map
func ParseXML2Map(b []byte) (m ztype.Map, err error) {
if len(b) == 0 {
return nil, errors.New("xml data is empty")
}
var (
d = xml.NewDecoder(bytes.NewReader(b))
depth = 0
tk xml.Token
key string
buf bytes.Buffer
)
m = ztype.Map{}
for {
tk, err = d.Token()
if err != nil {
if err == io.EOF {
err = nil
return
}
return
}
switch v := tk.(type) {
case xml.StartElement:
depth++
switch depth {
case 2:
key = v.Name.Local
buf.Reset()
case 3:
if err = d.Skip(); err != nil {
return
}
depth--
key = "" // key == "" indicates that the node with depth==2 has children
}
case xml.CharData:
if depth == 2 && key != "" {
buf.Write(v)
}
case xml.EndElement:
if depth == 2 && key != "" {
m[key] = buf.String()
}
depth--
}
}
}
// CheckResError CheckResError
func CheckResError(v []byte) (*zjson.Res, error) {
data := zjson.ParseBytes(v)
code := data.Get("errcode").Int()
if code != 0 {
errmsg := data.Get("errmsg").String()
if errmsg == "" {
return &zjson.Res{}, httpError{Code: code, Msg: "errcode: " + strconv.Itoa(code)}
}
return &zjson.Res{}, httpError{Code: code, Msg: errmsg}
}
return data, nil
}
func paramFilter(uri string) string {
if u, err := url.Parse(uri); err == nil {
querys := u.Query()
for k := range querys {
if k == "code" || k == "state" || k == "scope" {
delete(querys, k)
}
}
u.RawQuery = querys.Encode()
uri = u.String()
}
return uri
}
func sortParam(v map[string]interface{}, key string) string {
l := len(v)
keys := make([]string, 0, l)
for k := range v {
keys = append(keys, k)
}
sort.Strings(keys)
b := zstring.Buffer(l * 3)
for i := range keys {
k := keys[i]
s := ztype.ToString(v[k])
if len(s) == 0 {
continue
}
if i > 0 {
b.WriteString("&")
}
b.WriteString(k)
b.WriteString("=")
b.WriteString(s)
}
return b.String() + "&key=" + key
}
func signParam(v string, signType, key string) string {
switch strings.ToUpper(signType) {
case "SHA1":
b := sha1.Sum(zstring.String2Bytes(v))
return hex.EncodeToString(b[:])
default:
// MD5
return strings.ToUpper(zstring.Md5(v))
}
}