51 lines
1.4 KiB
Go
51 lines
1.4 KiB
Go
package main
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import (
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"errors"
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"log"
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"net/http"
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"os"
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"path/filepath"
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"strings"
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"gitea.ewpt3ch.dev/ewpt3ch/pkgstash/internal/cache"
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)
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func (s *Server) handlePackage(w http.ResponseWriter, req *http.Request) {
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// most mirrors don't have a *db.sig so we 404 it here instead of spamming the mirror
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if strings.HasSuffix(req.PathValue("file"), ".db.sig") {
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w.WriteHeader(http.StatusNotFound)
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return
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}
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// record the useragent from requestor
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log.Printf("Requestors UA: %s", req.Header.Get("User-Agent"))
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// build file paths from the request, they follow archlinux repo
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// <mirrorroot>/[core, extra, etc]/os/[x86_64, arm, etc]/package.pkg.tar.zst[.sig]
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repo := req.PathValue("repo")
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arch := req.PathValue("arch")
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file := req.PathValue("file")
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repoPath := filepath.Join(repo, "os", arch, file) //path from mirror root to pkg or db file
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cachePath := filepath.Join(s.cfg.CacheRoot, repoPath) //absolute path for local read of the file
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if _, err := os.Stat(cachePath); err != nil {
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err = s.c.Fetch(repoPath)
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if err != nil {
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var upstreamErr *cache.UpstreamError
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if errors.As(err, &upstreamErr) {
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log.Printf("upstream error: %v", err)
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http.Error(w, "Not found upstream", upstreamErr.StatusCode)
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return
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}
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log.Printf("fetch error: %v", err)
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http.Error(w, "Failed to fetch from upstream", http.StatusBadGateway)
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return
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}
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}
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http.ServeFile(w, req, cachePath)
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}
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