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feat: take Retry-After header into consideration for rate limited feeds

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Frédéric Guillot 2024-10-05 22:26:05 -07:00 • committed by GitHub
parent e555e442fb
commit e1050e21b5
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5 changed files with 143 additions and 28 deletions
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22
internal/reader/fetcher/response_handler.go
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@ -13,7 +13,9 @@ import (
"net/http"
"net/url"
"os"
"strconv"
"strings"
"time"
"miniflux.app/v2/internal/locale"
)
@ -51,6 +53,26 @@ func (r *ResponseHandler) ETag() string {
return r.httpResponse.Header.Get("ETag")
}
func (r *ResponseHandler) ParseRetryDelay() int {
retryAfterHeaderValue := r.httpResponse.Header.Get("Retry-After")
if retryAfterHeaderValue != "" {
// First, try to parse as an integer (number of seconds)
if seconds, err := strconv.Atoi(retryAfterHeaderValue); err == nil {
return seconds
}
// If not an integer, try to parse as an HTTP-date
if t, err := time.Parse(time.RFC1123, retryAfterHeaderValue); err == nil {
return int(time.Until(t).Seconds())
}
}
return 0
}
func (r *ResponseHandler) IsRateLimited() bool {
return r.httpResponse.StatusCode == http.StatusTooManyRequests
}
func (r *ResponseHandler) IsModified(lastEtagValue, lastModifiedValue string) bool {
if r.httpResponse.StatusCode == http.StatusNotModified {
return false