Deploy managed portal with Docker
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@@ -18,13 +18,19 @@ type HTTPDoer interface {
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type RemoteClient struct {
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httpClient HTTPDoer
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attempts int
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retryDelay time.Duration
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}
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func NewRemoteClient(client HTTPDoer) *RemoteClient {
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if client == nil {
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client = &http.Client{Timeout: 5 * time.Second}
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}
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return &RemoteClient{httpClient: client}
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return &RemoteClient{
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httpClient: client,
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attempts: 5,
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retryDelay: 200 * time.Millisecond,
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}
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}
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func (c *RemoteClient) GetConfig(ctx context.Context, service Service) (map[string]any, error) {
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@@ -36,17 +42,18 @@ func (c *RemoteClient) GetConfig(ctx context.Context, service Service) (map[stri
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}
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func (c *RemoteClient) UpdateRTSP(ctx context.Context, service Service, rtsp string) (map[string]any, error) {
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body := strings.NewReader(fmt.Sprintf(`{"rtsp_url":%q}`, rtsp))
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req, err := c.newRequest(ctx, http.MethodPut, service, "/api/manage/config", body)
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resp, err := c.doRequest(ctx, func() (*http.Request, error) {
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body := strings.NewReader(fmt.Sprintf(`{"rtsp_url":%q}`, rtsp))
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req, err := c.newRequest(ctx, http.MethodPut, service, "/api/manage/config", body)
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if err != nil {
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return nil, err
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}
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req.Header.Set("Content-Type", "application/json")
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return req, nil
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})
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if err != nil {
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return nil, err
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}
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req.Header.Set("Content-Type", "application/json")
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resp, err := c.httpClient.Do(req)
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if err != nil {
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return nil, fmt.Errorf("request %s %s: %w", req.Method, req.URL.String(), err)
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}
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defer resp.Body.Close()
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if resp.StatusCode >= 400 {
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@@ -55,7 +62,7 @@ func (c *RemoteClient) UpdateRTSP(ctx context.Context, service Service, rtsp str
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var payload map[string]any
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if err := json.NewDecoder(resp.Body).Decode(&payload); err != nil {
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return nil, fmt.Errorf("decode response %s: %w", req.URL.String(), err)
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return nil, fmt.Errorf("decode response %s: %w", responseURL(resp, service.APIBaseURL+"/api/manage/config"), err)
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}
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return payload, nil
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}
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@@ -93,14 +100,13 @@ func (c *RemoteClient) PreviewFile(ctx context.Context, service Service, path st
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func (c *RemoteClient) Download(ctx context.Context, service Service, path string) (*http.Response, error) {
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query := url.Values{}
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query.Set("path", path)
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req, err := c.newRequest(ctx, http.MethodGet, service, "/api/manage/files/download?"+query.Encode(), nil)
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resp, err := c.doRequest(ctx, func() (*http.Request, error) {
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return c.newRequest(ctx, http.MethodGet, service, "/api/manage/files/download?"+query.Encode(), nil)
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})
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if err != nil {
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return nil, err
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}
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resp, err := c.httpClient.Do(req)
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if err != nil {
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return nil, fmt.Errorf("request %s %s: %w", req.Method, req.URL.String(), err)
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}
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if resp.StatusCode >= 400 {
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defer resp.Body.Close()
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return nil, decodeAPIError(resp)
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@@ -109,26 +115,79 @@ func (c *RemoteClient) Download(ctx context.Context, service Service, path strin
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}
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func (c *RemoteClient) getJSON(ctx context.Context, service Service, endpoint string, target any) error {
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req, err := c.newRequest(ctx, http.MethodGet, service, endpoint, nil)
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resp, err := c.doRequest(ctx, func() (*http.Request, error) {
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return c.newRequest(ctx, http.MethodGet, service, endpoint, nil)
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})
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if err != nil {
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return err
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}
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resp, err := c.httpClient.Do(req)
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if err != nil {
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return fmt.Errorf("request %s %s: %w", req.Method, req.URL.String(), err)
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}
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defer resp.Body.Close()
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if resp.StatusCode >= 400 {
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return decodeAPIError(resp)
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}
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if err := json.NewDecoder(resp.Body).Decode(target); err != nil {
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return fmt.Errorf("decode response %s: %w", req.URL.String(), err)
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return fmt.Errorf("decode response %s: %w", responseURL(resp, strings.TrimRight(service.APIBaseURL, "/")+endpoint), err)
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}
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return nil
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}
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func responseURL(resp *http.Response, fallback string) string {
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if resp != nil && resp.Request != nil && resp.Request.URL != nil {
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return resp.Request.URL.String()
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}
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return fallback
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}
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func (c *RemoteClient) doRequest(ctx context.Context, newReq func() (*http.Request, error)) (*http.Response, error) {
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attempts := c.attempts
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if attempts <= 0 {
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attempts = 1
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}
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delay := c.retryDelay
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if delay <= 0 {
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delay = 100 * time.Millisecond
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}
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var lastReq *http.Request
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var lastErr error
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for attempt := 1; attempt <= attempts; attempt++ {
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req, err := newReq()
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if err != nil {
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return nil, err
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}
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lastReq = req
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resp, err := c.httpClient.Do(req)
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if err == nil {
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return resp, nil
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}
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lastErr = err
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if attempt == attempts {
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break
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}
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if err := sleepWithContext(ctx, delay); err != nil {
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return nil, err
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}
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delay *= 2
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}
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if lastReq != nil {
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return nil, fmt.Errorf("request %s %s: %w", lastReq.Method, lastReq.URL.String(), lastErr)
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}
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return nil, lastErr
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}
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func sleepWithContext(ctx context.Context, delay time.Duration) error {
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timer := time.NewTimer(delay)
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defer timer.Stop()
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select {
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case <-ctx.Done():
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return ctx.Err()
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case <-timer.C:
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return nil
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}
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}
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func (c *RemoteClient) newRequest(ctx context.Context, method string, service Service, endpoint string, body io.Reader) (*http.Request, error) {
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base := strings.TrimRight(service.APIBaseURL, "/")
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req, err := http.NewRequestWithContext(ctx, method, base+endpoint, body)
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