Files

140 lines
3.7 KiB
Go

package indexer
import (
"encoding/xml"
"fmt"
"io"
"net/http"
"net/url"
"time"
"github.com/rs/zerolog/log"
"homelab.lan/music-agregator/internal/config"
)
type JacketIndexer struct {
cfg config.Config
client *http.Client
}
func NewIndexer(cfg config.Config) Indexer {
return &JacketIndexer{
cfg: cfg,
client: &http.Client{
Timeout: 60 * time.Second,
},
}
}
func (indexer *JacketIndexer) BuildSearchURL(query string, limit int32, tracker string) string {
searchTracker := "all"
if len(tracker) != 0 {
searchTracker = tracker
}
uri := fmt.Sprintf("%v/api/v2.0/indexers/%v/results/torznab?apikey=%v&cat=3010,3040&q=%v&t=search",
indexer.cfg.Indexer.Url, searchTracker, indexer.cfg.Indexer.ApiKey, url.QueryEscape(query))
if limit > 0 {
uri += fmt.Sprintf("&limit=%d", limit)
}
return uri
}
func (indexer *JacketIndexer) Search(query string, limit int32, tracker string) (SearchResult, error) {
uri := indexer.BuildSearchURL(query, limit, tracker)
return indexer.FetchURL(uri)
}
type JackettError struct {
Code string `xml:"code,attr"`
Description string `xml:"description,attr"`
}
func (e *JackettError) Error() string {
return fmt.Sprintf("jackett error %s: %s", e.Code, e.Description)
}
func (indexer *JacketIndexer) FetchURL(uri string) (SearchResult, error) {
log.Trace().Str("uri", uri).Msg("jackett request")
req, err := http.NewRequest("GET", uri, nil)
if err != nil {
log.Error().Err(err).Msg("error creating request")
return SearchResult{}, err
}
start := time.Now()
resp, err := indexer.client.Do(req)
if err != nil {
log.Error().Err(err).Msg("error making search request")
return SearchResult{}, err
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
log.Error().Err(err).Msg("error reading search response body")
return SearchResult{}, err
}
log.Trace().
Int("status", resp.StatusCode).
Int("body_bytes", len(body)).
Dur("duration", time.Since(start)).
Msg("jackett response")
if resp.StatusCode != http.StatusOK {
var jackettErr JackettError
if xmlErr := xml.Unmarshal(body, &jackettErr); xmlErr == nil && jackettErr.Code != "" {
log.Error().Str("code", jackettErr.Code).Str("description", jackettErr.Description).Msg("jackett returned error")
return SearchResult{}, &jackettErr
}
return SearchResult{}, fmt.Errorf("jackett returned HTTP %d", resp.StatusCode)
}
var searchResult SearchResult
if err := xml.Unmarshal(body, &searchResult); err != nil {
log.Error().Err(err).Msg("error parsing search XML")
return SearchResult{}, err
}
log.Trace().Int("items", len(searchResult.Items)).Msg("jackett XML parsed")
return searchResult, nil
}
func (indexer *JacketIndexer) Capabilities(indexerName string) (IndexerCapabilities, error) {
url := indexer.cfg.Indexer.Url
uri := fmt.Sprintf("%v/api/v2.0/indexers/%v/results/torznab/api?apikey=%v&t=caps", url, indexerName, indexer.cfg.Indexer.ApiKey)
req, err := http.NewRequest("GET", uri, nil)
if err != nil {
log.Error().Err(err).Msg("Error creating request")
return IndexerCapabilities{}, err
}
resp, err := indexer.client.Do(req)
if err != nil {
log.Error().Err(err).Msg("Error making capabilities request")
return IndexerCapabilities{}, err
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
log.Error().Err(err).Msg("Error reading response body")
return IndexerCapabilities{}, err
}
var capabilities IndexerCapabilities
if err := xml.Unmarshal(body, &capabilities); err != nil {
log.Error().Err(err).Msg("Error parsing capabilities XML")
return IndexerCapabilities{}, err
}
log.Debug().Str("server", capabilities.Server.Title).Msg("Parsed capabilities")
return capabilities, nil
}