支持文件上传功能
This commit is contained in:
ctlove0523
parent
71e032de65
commit
11cfffae71
30
README.md
30
README.md
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@ -2,15 +2,16 @@
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huaweicloud-iot-device-sdk-go提供设备接入华为云IoT物联网平台的Go版本的SDK，提供设备和平台之间通讯能力，以及设备服务、网关服务、OTA等高级服务。IoT设备开发者使用SDK可以大大简化开发复杂度，快速的接入平台。
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## 安装和构建
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安装和构建的过程取决于你是使用go的 [modules](https://golang.org/ref/mod)(推荐) 还是还是`GOPATH`
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### Modules
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如果你使用 [modules](https://golang.org/ref/mod) 只需要导入包"github.com/ctlove0523/huaweicloud-iot-device-sdk-go"即可使用。当你使用go build命令构建项目时，依赖的包会自动被下载。注意使用go build命令构建时会自动下载最新版本，最新版本还没有达到release的标准可能存在一些尚未修复的bug。如果想使用稳定的发布版本可以从[release](https://github.com/ctlove0523/huaweicloud-iot-device-sdk-go/releases) 获取最新稳定的版本号，并在go.mod文件中指定版本号。
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如果你使用 [modules](https://golang.org/ref/mod) 只需要导入包"github.com/ctlove0523/huaweicloud-iot-device-sdk-go"即可使用。当你使用go
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build命令构建项目时，依赖的包会自动被下载。注意使用go
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build命令构建时会自动下载最新版本，最新版本还没有达到release的标准可能存在一些尚未修复的bug。如果想使用稳定的发布版本可以从[release](https://github.com/ctlove0523/huaweicloud-iot-device-sdk-go/releases)
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获取最新稳定的版本号，并在go.mod文件中指定版本号。
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~~~go
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module example
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@ -28,8 +29,6 @@ require github.com/ctlove0523/huaweicloud-iot-device-sdk-go v0.0.1-alpha
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go get github.com/ctlove0523/huaweicloud-iot-device-sdk-go
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~~~
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## 使用API
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### 创建设备并初始化
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@ -63,8 +62,6 @@ func main() {
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> iot-mqtts.cn-north-4.myhuaweicloud.com为华为IoT平台（基础班）在华为云北京四的访问端点，如果你购买了标准版或企业版，请将iot-mqtts.cn-north-4.myhuaweicloud.com更换为对应的MQTT协议接入端点。
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### 设备处理平台下发的命令
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1、首先，在华为云IoT平台创建一个设备，设备的信息如下：
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@ -143,8 +140,6 @@ func main() {
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}
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~~~
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> 设备支持的命令定义在产品中
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### 设备消息
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@ -232,8 +227,6 @@ func main() {
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}
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~~~
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### 设备属性
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1、首先，在华为云IoT平台创建一个设备，并在该设备下创建3个子设备，设备及子设备的信息如下：
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@ -257,8 +250,6 @@ device.Init()
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fmt.Printf("device connected: %v\n", device.IsConnected())
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~~~
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#### 设备属性上报
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使用`ReportProperties(properties ServiceProperty) bool` 上报设备属性
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@ -282,8 +273,6 @@ services := iot.ServiceProperty{
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device.ReportProperties(services)
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~~~
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#### 网关批量设备属性上报
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使用`BatchReportSubDevicesProperties(service DevicesService)` 实现网关批量设备属性上报
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@ -312,8 +301,6 @@ device.BatchReportSubDevicesProperties(iot.DevicesService{
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})
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~~~
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#### 平台设置设备属性
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使用`AddPropertiesSetHandler(handler DevicePropertiesSetHandler)` 注册平台设置设备属性handler，当接收到平台的命令时SDK回调。
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@ -327,8 +314,6 @@ device.AddPropertiesSetHandler(func(propertiesSetRequest iot.DevicePropertyDownR
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})
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~~~
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#### 平台查询设备属性
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使用`SetPropertyQueryHandler(handler DevicePropertyQueryHandler)`注册平台查询设备属性handler，当接收到平台的查询请求时SDK回调。
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@ -347,11 +332,10 @@ device.SetPropertyQueryHandler(func(query iot.DevicePropertyQueryRequest) iot.Se
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})
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~~~
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#### 设备侧获取平台的设备影子数据
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使用`QueryDeviceShadow(query DevicePropertyQueryRequest, handler DevicePropertyQueryResponseHandler)` 可以查询平台的设备影子数据，当接收到平台的响应后SDK自动回调`DevicePropertyQueryResponseHandler`。
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使用`QueryDeviceShadow(query DevicePropertyQueryRequest, handler DevicePropertyQueryResponseHandler)`
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可以查询平台的设备影子数据，当接收到平台的响应后SDK自动回调`DevicePropertyQueryResponseHandler`。
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~~~go
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// 设备查询设备影子数据
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@ -450,8 +434,6 @@ type DemoProperties struct {
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}
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~~~
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## 报告bugs
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如果你在使用过程中遇到任何问题或bugs，请通过issue的方式上报问题或bug，我们将会在第一时间内答复。上报问题或bugs时请尽量提供以下内容：
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@ -37,5 +37,12 @@ const (
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// 网关批量上报子设备属性
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GatewayBatchReportSubDeviceTopicName string = "gatewayBatchReportSubDeviceTopicName"
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GatewayBatchReportSubDeviceTopic string = "$oc/devices/{device_id}/sys/gateway/sub_devices/properties/report"
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)
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// 文件上传
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FileUploadUrlRequestTopicName string = "fileUploadUrlRequestTopicName"
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FileUploadUrlRequestTopic string = "$oc/devices/{device_id}/sys/events/up"
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FileUploadUrlResponseTopicName string = "fileUploadUrlResponseTopicName"
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FileUploadUrlResponseTopic string = "$oc/devices/{device_id}/sys/events/down"
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FileUploadResultTopicName string = "FileUploadResultTopic"
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FileUploadResultTopic string = "$oc/devices/{device_id}/sys/events/up"
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)
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87
handlers.go
87
handlers.go
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@ -119,3 +119,90 @@ type DeviceService struct {
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DeviceId string `json:"device_id"`
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Services []ServicePropertyEntry `json:"services"`
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}
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// 文件上传下载管理
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func CreateFileUploadResultResponse(filename string, result bool) FileUploadResultResponse {
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code := 0
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if result {
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code = 0
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} else {
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code = 1
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}
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paras := UploadFileResultResponseServiceEventParas{
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ObjectName: filename,
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ResultCode: code,
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}
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serviceEvent := UploadResultResponseServiceEvent{
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Paras: paras,
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}
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serviceEvent.ServiceId = "$file_manager"
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serviceEvent.EventType = "upload_result_report"
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serviceEvent.EventTime = GetEventTimeStamp()
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var services []UploadResultResponseServiceEvent
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services = append(services, serviceEvent)
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response := FileUploadResultResponse{
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Services: services,
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}
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return response
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}
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type FileUploadUrlRequest struct {
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ObjectDeviceId string `json:"object_device_id"`
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Services []UploadRequestServiceEvent `json:"services"`
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}
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type FileUploadUrlResponse struct {
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ObjectDeviceId string `json:"object_device_id"`
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Services []UploadResponseServiceEvent `json:"services"`
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}
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type FileUploadResultResponse struct {
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ObjectDeviceId string `json:"object_device_id"`
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Services []UploadResultResponseServiceEvent `json:"services"`
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}
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type BaseServiceEvent struct {
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ServiceId string `json:"service_id"`
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EventType string `json:"event_type"`
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EventTime string `json:"event_time"`
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}
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type UploadRequestServiceEvent struct {
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BaseServiceEvent
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Paras UploadRequestServiceEventParas `json:"paras"`
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}
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type UploadResponseServiceEvent struct {
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BaseServiceEvent
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Paras UploadResponseServiceEventParas `json:"paras"`
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}
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type UploadResultResponseServiceEvent struct {
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BaseServiceEvent
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Paras UploadFileResultResponseServiceEventParas `json:"paras"`
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}
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type UploadRequestServiceEventParas struct {
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FileName string `json:"file_name"`
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FileAttributes interface{} `json:"file_attributes"`
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}
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type UploadResponseServiceEventParas struct {
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Url string `json:"url"`
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BucketName string `json:"bucket_name"`
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ObjectName string `json:"object_name"`
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Expire int `json:"expire"`
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FileAttributes interface{} `json:"file_attributes"`
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}
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type UploadFileResultResponseServiceEventParas struct {
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ObjectName string `json:"object_name"`
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ResultCode int `json:"result_code"`
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StatusCode int `json:"status_code"`
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StatusDescription string `json:"status_description"`
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}
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@ -0,0 +1,40 @@
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package iot
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import (
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"bufio"
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"github.com/golang/glog"
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"io"
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"os"
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"runtime"
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"strings"
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)
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func OsName() string {
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return runtime.GOOS
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}
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func SdkInfo() map[string]string {
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f, err := os.Open("sdk_info")
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if err != nil {
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glog.Warning("read sdk info failed")
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return map[string]string{}
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}
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// 文件很小
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info := make(map[string]string)
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buf := bufio.NewReader(f)
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for {
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b, _, err := buf.ReadLine()
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if err != nil && err == io.EOF {
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glog.Warningf("read sdk info failed or end")
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break
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}
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line := string(b)
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if len(line) != 0 {
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parts := strings.Split(line, "=")
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info[strings.Trim(parts[0], " ")] = strings.Trim(parts[1], " ")
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}
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}
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return info
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}
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@ -0,0 +1,48 @@
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package iot
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import (
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"bufio"
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"fmt"
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"io"
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"os"
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"strings"
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"testing"
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)
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// 该测试用力仅能在Windows系统运行
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func TestOsName(t *testing.T) {
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if !strings.Contains(OsName(), "windows") {
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t.Errorf(`OsName must be windwos`)
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}
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}
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func TestVersion(t *testing.T) {
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if SdkInfo()["sdk-version"] != "v0.0.1" {
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t.Errorf("sdk version must be v0.0.1")
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}
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if SdkInfo()["author"] != "chen tong" {
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t.Errorf("sdk author must be chen tong")
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}
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}
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func TestCreateFileUploadResultResponse(t *testing.T) {
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f, err := os.Open("sdk_info")
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if err != nil {
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fmt.Println(err.Error())
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}
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//建立缓冲区，把文件内容放到缓冲区中
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buf := bufio.NewReader(f)
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for {
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//遇到\n结束读取
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b, errR := buf.ReadBytes('\n')
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if errR != nil {
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if errR == io.EOF {
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break
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}
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fmt.Println(errR.Error())
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}
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fmt.Println(string(b))
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}
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}
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@ -0,0 +1,86 @@
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package iot
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import (
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"bytes"
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"github.com/golang/glog"
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"io"
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"io/ioutil"
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"mime/multipart"
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"net/http"
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"net/url"
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"os"
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"time"
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)
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// 仅用于设备上传文件
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type HttpClient interface {
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UploadFile(filename, uri string) bool
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}
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type httpClient struct {
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client *http.Client
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}
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func (client *httpClient) UploadFile(filename, uri string) bool {
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bodyBuffer := &bytes.Buffer{}
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bodyWriter := multipart.NewWriter(bodyBuffer)
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fileWriter, err := bodyWriter.CreateFormFile("files", filename)
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if err != nil {
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glog.Errorf("create form file failed %v", err)
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return false
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}
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file, err := os.Open(filename)
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if err != nil {
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glog.Errorf("open file failed %v", err)
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return false
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}
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defer file.Close()
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_, err = io.Copy(fileWriter, file)
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if err != nil {
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glog.Errorf("copy file to writer failed %v", err)
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}
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//contentType := bodyWriter.FormDataContentType()
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defer bodyWriter.Close()
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req, err := http.NewRequest("PUT", uri, bodyBuffer)
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if err != nil {
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glog.Errorf("create request filed %v", err)
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}
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req.Header.Add("Content-Type", "text/plain")
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originalUri, err := url.ParseRequestURI(uri)
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if err != nil {
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glog.Errorf("parse request uri failed %v", err)
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}
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req.Header.Add("Host", originalUri.Host)
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resp, _ := client.client.Do(req)
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defer resp.Body.Close()
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_, err = ioutil.ReadAll(resp.Body)
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return err == nil
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}
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func CreateHttpClient() HttpClient {
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tr := &http.Transport{
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MaxIdleConns: 10,
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IdleConnTimeout: 30 * time.Second,
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DisableCompression: true,
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}
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innerClient := &http.Client{Transport: tr}
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httpClient := &httpClient{
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client: innerClient,
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}
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return httpClient
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}
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78
iotdevice.go
78
iotdevice.go
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@ -2,6 +2,7 @@ package iot
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import (
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"encoding/json"
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"fmt"
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mqtt "github.com/eclipse/paho.mqtt.golang"
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"github.com/golang/glog"
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"github.com/satori/go.uuid"
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@ -20,6 +21,7 @@ type Device interface {
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AddCommandHandler(handler CommandHandler)
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AddPropertiesSetHandler(handler DevicePropertiesSetHandler)
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SetPropertyQueryHandler(handler DevicePropertyQueryHandler)
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UploadFile(filename string) bool
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}
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type iotDevice struct {
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@ -35,6 +37,75 @@ type iotDevice struct {
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topics map[string]string
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}
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type FileAtt struct {
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HashCode string `json:"hash_code"`
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Size int `json:"size"`
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}
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func (device *iotDevice) UploadFile(filename string) bool {
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// first subscribe
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uploadUrlChan := make(chan string)
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device.client.Subscribe(device.topics[FileUploadUrlResponseTopicName], 1, func(client mqtt.Client, message mqtt.Message) {
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response := &FileUploadUrlResponse{}
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if json.Unmarshal(message.Payload(), response) != nil {
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glog.Errorf("unmarshal file upload response failed")
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uploadUrlChan <- ""
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} else {
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uploadUrlChan <- response.Services[0].Paras.Url
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}
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})
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// 构造获取文件上传URL的请求
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requestParas := UploadRequestServiceEventParas{
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FileName: filename,
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}
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serviceEvent := UploadRequestServiceEvent{
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Paras: requestParas,
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}
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serviceEvent.ServiceId = "$file_manager"
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serviceEvent.EventTime = GetEventTimeStamp()
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serviceEvent.EventType = "get_upload_url"
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var services []UploadRequestServiceEvent
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services = append(services, serviceEvent)
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request := FileUploadUrlRequest{
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Services: services,
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}
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if token := device.client.Publish(device.topics[FileUploadUrlRequestTopicName], 1, false, Interface2JsonString(request));
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token.Wait() && token.Error() != nil {
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glog.Warningf("publish file upload request url failed")
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return false
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}
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upLoadUrl := <-uploadUrlChan
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if len(upLoadUrl) == 0 {
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glog.Errorf("get file upload url failed")
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return false
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}
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glog.Infof("file upload url is %s", upLoadUrl)
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filename = SmartFileName(filename)
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uploadFlag := CreateHttpClient().UploadFile(filename, upLoadUrl)
|
||||
if !uploadFlag {
|
||||
glog.Errorf("upload file failed")
|
||||
return false
|
||||
}
|
||||
|
||||
response := CreateFileUploadResultResponse(filename, uploadFlag)
|
||||
|
||||
token := device.client.Publish(device.topics[FileUploadResultTopicName], 1, false, Interface2JsonString(response))
|
||||
if token.Wait() && token.Error() != nil {
|
||||
glog.Error("report file upload file result failed")
|
||||
return false
|
||||
}
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
func (device *iotDevice) createMessageMqttHandler() func(client mqtt.Client, message mqtt.Message) {
|
||||
messageHandler := func(client mqtt.Client, message mqtt.Message) {
|
||||
msg := &Message{}
|
||||
|
|
@ -141,6 +212,8 @@ func (device *iotDevice) Init() bool {
|
|||
options.SetClientID(assembleClientId(device))
|
||||
options.SetUsername(device.Id)
|
||||
options.SetPassword(HmacSha256(device.Password, TimeStamp()))
|
||||
fmt.Println(assembleClientId(device))
|
||||
fmt.Println(HmacSha256(device.Password, TimeStamp()))
|
||||
|
||||
device.client = mqtt.NewClient(options)
|
||||
|
||||
|
|
@ -249,6 +322,9 @@ func CreateIotDevice(id, password, servers string) Device {
|
|||
device.topics[DeviceShadowQueryRequestTopicName] = FormatTopic(DeviceShadowQueryRequestTopic, id)
|
||||
device.topics[DeviceShadowQueryResponseTopicName] = FormatTopic(DeviceShadowQueryResponseTopic, id)
|
||||
device.topics[GatewayBatchReportSubDeviceTopicName] = FormatTopic(GatewayBatchReportSubDeviceTopic, id)
|
||||
device.topics[FileUploadUrlRequestTopicName] = FormatTopic(FileUploadUrlRequestTopic, id)
|
||||
device.topics[FileUploadUrlResponseTopicName] = FormatTopic(FileUploadUrlResponseTopic, id)
|
||||
device.topics[FileUploadResultTopicName] = FormatTopic(FileUploadResultTopic, id)
|
||||
return device
|
||||
}
|
||||
|
||||
|
|
@ -264,7 +340,7 @@ func assembleClientId(device *iotDevice) string {
|
|||
|
||||
func logFlush() {
|
||||
ticker := time.Tick(5 * time.Second)
|
||||
for{
|
||||
for {
|
||||
select {
|
||||
case <-ticker:
|
||||
glog.Flush()
|
||||
|
|
|
|||
|
|
@ -0,0 +1,17 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
iot "github.com/ctlove0523/huaweicloud-iot-device-sdk-go"
|
||||
"time"
|
||||
)
|
||||
|
||||
func main() {
|
||||
//创建一个设备并初始化
|
||||
device := iot.CreateIotDevice("5fdb75cccbfe2f02ce81d4bf_go-mqtt", "123456789", "tcp://iot-mqtts.cn-north-4.myhuaweicloud.com:1883")
|
||||
device.Init()
|
||||
|
||||
device.UploadFile("D/software/mqttfx/chentong.txt")
|
||||
|
||||
time.Sleep(time.Hour)
|
||||
|
||||
}
|
||||
|
|
@ -1,17 +0,0 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"time"
|
||||
)
|
||||
|
||||
func main() {
|
||||
ticker := time.Tick(5 * time.Second)
|
||||
for ; ; {
|
||||
select {
|
||||
case <-ticker:
|
||||
fmt.Println(time.Now().Second())
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -34,7 +34,7 @@ func main() {
|
|||
// 设备上报属性
|
||||
props := iot.ServicePropertyEntry{
|
||||
ServiceId: "value",
|
||||
EventTime: iot.DataCollectionTime(),
|
||||
EventTime: iot.GetEventTimeStamp(),
|
||||
Properties: DemoProperties{
|
||||
Value: "chen tong",
|
||||
MsgType: "23",
|
||||
|
|
|
|||
17
util.go
17
util.go
|
|
@ -20,7 +20,7 @@ func TimeStamp() string {
|
|||
|
||||
// 设备采集数据UTC时间（格式：yyyyMMdd'T'HHmmss'Z'），如：20161219T114920Z。
|
||||
//设备上报数据不带该参数或参数格式错误时，则数据上报时间以平台时间为准。
|
||||
func DataCollectionTime() string {
|
||||
func GetEventTimeStamp() string {
|
||||
now := time.Now().UTC()
|
||||
return now.Format("20060102T150405Z")
|
||||
}
|
||||
|
|
@ -32,6 +32,9 @@ func HmacSha256(data string, secret string) string {
|
|||
}
|
||||
|
||||
func Interface2JsonString(v interface{}) string {
|
||||
if v == nil {
|
||||
return ""
|
||||
}
|
||||
byteData, err := json.Marshal(v)
|
||||
if err != nil {
|
||||
return ""
|
||||
|
|
@ -46,3 +49,15 @@ func GetTopicRequestId(topic string) string {
|
|||
func FormatTopic(topic, deviceId string) string {
|
||||
return strings.ReplaceAll(topic, "{device_id}", deviceId)
|
||||
}
|
||||
|
||||
// 根据当前运行的操作系统重新修改文件路径以适配操作系统
|
||||
func SmartFileName(filename string) string {
|
||||
// Windows操作系统适配
|
||||
if strings.Contains(OsName(), "windows") {
|
||||
pathParts := strings.Split(filename, "/")
|
||||
pathParts[0] = pathParts[0] + ":"
|
||||
return strings.Join(pathParts, "\\\\")
|
||||
}
|
||||
|
||||
return filename
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,58 @@
|
|||
package iot
|
||||
|
||||
import (
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestTimeStamp(t *testing.T) {
|
||||
timeStamp := TimeStamp()
|
||||
if len(timeStamp) != 10 {
|
||||
t.Error(`Time Stamp length must be 10`)
|
||||
}
|
||||
}
|
||||
|
||||
func TestDataCollectionTime(t *testing.T) {
|
||||
if len(GetEventTimeStamp()) != 16 {
|
||||
t.Errorf(`Data Collection Time length must be 16,but is %d`, len(GetEventTimeStamp()))
|
||||
}
|
||||
}
|
||||
|
||||
func TestHmacSha256(t *testing.T) {
|
||||
encodedPassword := "c0fefa1341fb0647290e93f641a9bcea74cd32111668cdc5f7418553640a55cc"
|
||||
if HmacSha256("123456789", "202012222200") != encodedPassword {
|
||||
t.Errorf("encoded password must be %s but is %s", encodedPassword, HmacSha256("123456789", "202012222200"))
|
||||
}
|
||||
}
|
||||
|
||||
func TestInterface2JsonString(t *testing.T) {
|
||||
if Interface2JsonString(nil) != "" {
|
||||
t.Errorf("nill interface to json string must empty")
|
||||
}
|
||||
}
|
||||
|
||||
func TestGetTopicRequestId(t *testing.T) {
|
||||
topic := "$os/device/down/request=123456789"
|
||||
if GetTopicRequestId(topic) != "123456789" {
|
||||
t.Errorf("topic request id must be %s", "123456789")
|
||||
}
|
||||
}
|
||||
|
||||
func TestFormatTopic(t *testing.T) {
|
||||
topic := "$os/device/{device_id}/up"
|
||||
deviceId := "123"
|
||||
formatTopic := "$os/device/123/up"
|
||||
if formatTopic != FormatTopic(topic, deviceId) {
|
||||
t.Errorf("formated topic must be %s", formatTopic)
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
// 仅适用于windows系统
|
||||
func TestSmartFileName(t *testing.T) {
|
||||
fileName := "D/go/sdk/test.log"
|
||||
smartFileName := "D:\\\\go\\\\sdk\\\\test.log"
|
||||
|
||||
if smartFileName != SmartFileName(fileName) {
|
||||
t.Errorf("in windows file system,smart file name must be %s", smartFileName)
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue