odit/npm-cache-proxy
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feat: add tarballs caching

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This commit is contained in:
 Ilya Atamas
2019-04-23 15:36:51 +03:00
parent d04603f529
commit 18338eb0d7
4 changed files with 31 additions and 24 deletions
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23
proxy/cache.go
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@@ -5,17 +5,18 @@ import (
"io/ioutil"
"log"
"net/http"
"regexp"
"strings"
)
// GetMetadata returns cached NPM response for a given package path.
func (proxy Proxy) GetMetadata(name string, originalPath string, request *http.Request) ([]byte, error) {
// GetCachedPath returns cached upstream response for a given url path.
func (proxy Proxy) GetCachedPath(path string, request *http.Request) ([]byte, error) {
options, err := proxy.GetOptions()
if err != nil {
return nil, err
}
key := options.DatabasePrefix + name
key := options.DatabasePrefix + path
// get package from database
pkg, err := proxy.Database.Get(key)
@@ -31,7 +32,7 @@ func (proxy Proxy) GetMetadata(name string, originalPath string, request *http.R
// error is caused by nonexistent package
// fetch package
req, err := http.NewRequest("GET", options.UpstreamAddress+originalPath, nil)
req, err := http.NewRequest("GET", options.UpstreamAddress+path, nil)
req.Header = request.Header
req.Header.Set("Accept-Encoding", "gzip")
@@ -66,15 +67,15 @@ func (proxy Proxy) GetMetadata(name string, originalPath string, request *http.R
}
}
// replace tarball urls
// FIXME: unmarshall and replace only necessary fields
// convertedPkg := strings.ReplaceAll(string(pkg), options.ReplaceAddress, options.StaticServerAddress)
// TODO: avoid calling MustCompile every time
// find "dist": "https?://.*/ and replace to "dist": "{localurl}/
pkg = regexp.MustCompile(`(?U)"tarball":"https?://.*/`).ReplaceAllString(pkg, `"dist": "http://localhost:8080/`)
return []byte(pkg), nil
}
// ListMetadata returns list of all cached packages
func (proxy Proxy) ListMetadata() ([]string, error) {
// ListCachedPaths returns list of all cached url paths.
func (proxy Proxy) ListCachedPaths() ([]string, error) {
options, err := proxy.GetOptions()
if err != nil {
return nil, err
@@ -93,8 +94,8 @@ func (proxy Proxy) ListMetadata() ([]string, error) {
return deprefixedMetadata, nil
}
// PurgeMetadata deletes all cached packages.
func (proxy Proxy) PurgeMetadata() error {
// PurgeCachedPaths deletes all cached url paths.
func (proxy Proxy) PurgeCachedPaths() error {
options, err := proxy.GetOptions()
if err != nil {
return err