44 lines
1.2 KiB
Go
44 lines
1.2 KiB
Go
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package providers
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import (
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"context"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"strings"
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)
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const maxOAuthResponseBodyBytes = 1 << 20
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func postFormWithContext(ctx context.Context, client *http.Client, endpoint string, data url.Values) (*http.Response, error) {
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req, err := http.NewRequestWithContext(ctx, http.MethodPost, endpoint, strings.NewReader(data.Encode()))
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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/x-www-form-urlencoded")
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return client.Do(req)
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}
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func readOAuthResponseBody(resp *http.Response) ([]byte, error) {
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limited := io.LimitReader(resp.Body, maxOAuthResponseBodyBytes+1)
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body, err := io.ReadAll(limited)
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if err != nil {
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return nil, err
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}
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if len(body) > maxOAuthResponseBodyBytes {
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return nil, fmt.Errorf("oauth response body exceeded %d bytes", maxOAuthResponseBodyBytes)
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}
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if resp.StatusCode < http.StatusOK || resp.StatusCode >= http.StatusMultipleChoices {
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snippet := strings.TrimSpace(string(body))
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if len(snippet) > 256 {
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snippet = snippet[:256]
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}
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if snippet == "" {
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return nil, fmt.Errorf("oauth request failed with status %d", resp.StatusCode)
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}
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return nil, fmt.Errorf("oauth request failed with status %d: %s", resp.StatusCode, snippet)
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}
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return body, nil
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}
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