146 lines
3.0 KiB
Go
146 lines
3.0 KiB
Go
package client
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import (
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"bytes"
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"encoding/json"
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"errors"
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"github.com/sqshq/sampler/metadata"
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"io/ioutil"
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"net/http"
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)
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const (
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backendUrl = "http://localhost/api/v1"
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installationPath = "/telemetry/installation"
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statisticsPath = "/telemetry/statistics"
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crashPath = "/telemetry/crash"
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registrationPath = "/license/registration"
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verificationPath = "/license/verification"
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jsonContentType = "application/json"
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)
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// Backend client is used to verify license and to send telemetry reports
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// for analyses (anonymous usage data statistics and crash reports)
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type BackendClient struct {
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client http.Client
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}
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func NewBackendClient() *BackendClient {
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return &BackendClient{
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client: http.Client{},
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}
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}
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func (c *BackendClient) ReportInstallation(statistics *metadata.Statistics) {
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buf := new(bytes.Buffer)
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err := json.NewEncoder(buf).Encode(statistics)
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if err != nil {
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c.ReportCrash(err.Error(), statistics)
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}
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_, err = http.Post(backendUrl+installationPath, jsonContentType, buf)
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if err != nil {
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c.ReportCrash(err.Error(), statistics)
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}
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}
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func (c *BackendClient) ReportStatistics(statistics *metadata.Statistics) {
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buf := new(bytes.Buffer)
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err := json.NewEncoder(buf).Encode(statistics)
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if err != nil {
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c.ReportCrash(err.Error(), statistics)
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}
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_, err = http.Post(backendUrl+statisticsPath, jsonContentType, buf)
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if err != nil {
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c.ReportCrash(err.Error(), statistics)
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}
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}
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func (c *BackendClient) ReportCrash(error string, statistics *metadata.Statistics) {
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req := struct {
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Error string
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Statistics *metadata.Statistics
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}{
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error,
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statistics,
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}
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buf := new(bytes.Buffer)
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err := json.NewEncoder(buf).Encode(req)
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if err != nil {
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return
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}
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_, _ = http.Post(backendUrl+crashPath, jsonContentType, buf)
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}
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func (c *BackendClient) RegisterLicenseKey(licenseKey string, statistics *metadata.Statistics) (*metadata.License, error) {
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req := struct {
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LicenseKey string
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Statistics *metadata.Statistics
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}{
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licenseKey,
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statistics,
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}
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buf := new(bytes.Buffer)
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err := json.NewEncoder(buf).Encode(req)
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if err != nil {
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c.ReportCrash(err.Error(), statistics)
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}
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response, err := http.Post(
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backendUrl+registrationPath, jsonContentType, buf)
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if err != nil {
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return nil, err
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}
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if response.StatusCode != 200 {
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body, _ := ioutil.ReadAll(response.Body)
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return nil, errors.New(string(body))
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}
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var license metadata.License
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json.NewDecoder(response.Body).Decode(&license)
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return &license, nil
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}
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func (c *BackendClient) VerifyLicenseKey(licenseKey string) (*metadata.License, error) {
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req := struct {
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LicenseKey string
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}{
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licenseKey,
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}
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buf := new(bytes.Buffer)
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err := json.NewEncoder(buf).Encode(req)
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if err != nil {
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c.ReportCrash(err.Error(), nil)
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}
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response, err := http.Post(
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backendUrl+verificationPath, jsonContentType, buf)
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if err != nil {
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return nil, err
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}
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if response.StatusCode != 200 {
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body, _ := ioutil.ReadAll(response.Body)
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return nil, errors.New(string(body))
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}
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var license metadata.License
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json.NewDecoder(response.Body).Decode(&license)
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return &license, nil
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}
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