mirror of https://github.com/miniflux/v2.git
85 lines
2.1 KiB
Go
85 lines
2.1 KiB
Go
// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
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// SPDX-License-Identifier: Apache-2.0
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package rssbridge // import "miniflux.app/v2/internal/integration/rssbridge"
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import (
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"encoding/json"
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"fmt"
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"log/slog"
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"net/http"
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"net/url"
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"strings"
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"time"
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)
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const defaultClientTimeout = 30 * time.Second
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type Bridge struct {
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URL string `json:"url"`
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BridgeMeta BridgeMeta `json:"bridgeMeta"`
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}
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type BridgeMeta struct {
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Name string `json:"name"`
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}
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func DetectBridges(rssBridgeURL, websiteURL string) ([]*Bridge, error) {
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endpointURL, err := url.Parse(rssBridgeURL)
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if err != nil {
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return nil, fmt.Errorf("RSS-Bridge: unable to parse bridge URL: %w", err)
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}
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values := endpointURL.Query()
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values.Add("action", "findfeed")
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values.Add("format", "atom")
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values.Add("url", websiteURL)
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endpointURL.RawQuery = values.Encode()
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slog.Debug("Detecting RSS bridges", slog.String("url", endpointURL.String()))
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request, err := http.NewRequest(http.MethodGet, endpointURL.String(), nil)
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if err != nil {
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return nil, fmt.Errorf("RSS-Bridge: unable to create request: %w", err)
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}
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httpClient := &http.Client{Timeout: defaultClientTimeout}
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response, err := httpClient.Do(request)
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if err != nil {
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return nil, fmt.Errorf("RSS-Bridge: unable to execute request: %w", err)
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}
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defer response.Body.Close()
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if response.StatusCode == http.StatusNotFound {
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return nil, nil
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}
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if response.StatusCode > 400 {
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return nil, fmt.Errorf("RSS-Bridge: unexpected status code %d", response.StatusCode)
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}
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var bridgeResponse []*Bridge
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if err := json.NewDecoder(response.Body).Decode(&bridgeResponse); err != nil {
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return nil, fmt.Errorf("RSS-Bridge: unable to decode bridge response: %w", err)
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}
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for _, bridge := range bridgeResponse {
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slog.Debug("Found RSS bridge",
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slog.String("name", bridge.BridgeMeta.Name),
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slog.String("url", bridge.URL),
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)
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if strings.HasPrefix(bridge.URL, "./") {
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bridge.URL = rssBridgeURL + bridge.URL[2:]
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slog.Debug("Rewrited relative RSS bridge URL",
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slog.String("name", bridge.BridgeMeta.Name),
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slog.String("url", bridge.URL),
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)
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}
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}
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return bridgeResponse, nil
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}
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