128 lines
3.0 KiB
Go
128 lines
3.0 KiB
Go
// Copyright 2023 The Casdoor Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package go_sms_sender
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import (
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"bytes"
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"crypto/md5"
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"crypto/rand"
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"encoding/base64"
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"encoding/hex"
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"encoding/json"
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"fmt"
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"net/http"
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"strings"
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"time"
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)
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type GCCPAYClient struct {
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clientname string
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secret string
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template string
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}
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type params struct {
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Mobile string `json:"mobile"`
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TemplateCode string `json:"template_code"`
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TemplateParams map[string]string `json:"template_params"`
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}
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func GetGCCPAYClient(clientname string, secret string, template string) (*GCCPAYClient, error) {
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gccPayClient := &GCCPAYClient{
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clientname: clientname,
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secret: secret,
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template: template,
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}
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return gccPayClient, nil
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}
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func RandStringBytesCrypto(n int) (string, error) {
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b := make([]byte, n)
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_, err := rand.Read(b)
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if err != nil {
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return "", err
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}
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return base64.StdEncoding.EncodeToString(b), nil
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}
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func Md5(str string) string {
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h := md5.New()
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h.Write([]byte(str))
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return hex.EncodeToString(h.Sum(nil))
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}
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func (c *GCCPAYClient) SendMessage(param map[string]string, targetPhoneNumber ...string) error {
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_, ok := param["code"]
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if !ok {
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return fmt.Errorf("missing parameter: code")
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}
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if len(targetPhoneNumber) == 0 {
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return fmt.Errorf("missing parameter: targetPhoneNumber")
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}
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reqParams := make(map[string]params)
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for _, mobile := range targetPhoneNumber {
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if strings.HasPrefix(mobile, "+") {
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mobile = mobile[1:]
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}
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randomString, err := RandStringBytesCrypto(16)
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if err != nil {
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return fmt.Errorf("SMS key generation failed")
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}
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reqParams[randomString] = params{
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Mobile: mobile,
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TemplateCode: c.template,
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TemplateParams: param,
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}
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}
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requestBody := new(bytes.Buffer)
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err := json.NewEncoder(requestBody).Encode(reqParams)
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if err != nil {
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return fmt.Errorf("SMS sending failed")
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}
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// sign
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timestamp := time.Now().Unix()
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sign := Md5(fmt.Sprintf("%s%d%s", c.clientname, timestamp, c.secret))
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reqUrl := "https://smscenter.sgate.sa/api/v1/client/sendSms"
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// send request
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req, _ := http.NewRequest("POST", reqUrl, requestBody)
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req.Header.Set("clientname", c.clientname)
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req.Header.Set("timestamp", fmt.Sprintf("%d", timestamp))
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req.Header.Set("sign", sign)
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req.Header.Set("content-type", "application/json;")
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client := &http.Client{}
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resp, err := client.Do(req)
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if err != nil {
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return err
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}
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err = resp.Body.Close()
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if err != nil {
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return err
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}
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return nil
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}
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