mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-15 08:23:34 +01:00
108 lines
2.4 KiB
Go
108 lines
2.4 KiB
Go
package main
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import (
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"net/url"
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"path"
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"slices"
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"strings"
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)
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func mergeURLs(uiURL, requestURI *url.URL, dropSrcPathPrefixParts int) *url.URL {
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targetURL := *uiURL
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srcPath := dropPrefixParts(requestURI.Path, dropSrcPathPrefixParts)
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if strings.HasPrefix(srcPath, "/") {
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targetURL.Path = strings.TrimSuffix(targetURL.Path, "/")
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}
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targetURL.Path += srcPath
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requestParams := requestURI.Query()
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// fast path
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if len(requestParams) == 0 {
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return &targetURL
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}
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// merge query parameters from requests.
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uiParams := targetURL.Query()
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for k, v := range requestParams {
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// skip clashed query params from original request
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if exist := uiParams.Get(k); len(exist) > 0 {
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continue
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}
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for i := range v {
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uiParams.Add(k, v[i])
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}
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}
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targetURL.RawQuery = uiParams.Encode()
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return &targetURL
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}
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func dropPrefixParts(path string, parts int) string {
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if parts <= 0 {
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return path
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}
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for parts > 0 {
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path = strings.TrimPrefix(path, "/")
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n := strings.IndexByte(path, '/')
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if n < 0 {
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return ""
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}
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path = path[n:]
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parts--
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}
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return path
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}
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func (ui *UserInfo) getURLPrefixAndHeaders(u *url.URL) (*URLPrefix, HeadersConf) {
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for _, e := range ui.URLMaps {
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if matchAnyRegex(e.SrcHosts, u.Host) && matchAnyRegex(e.SrcPaths, u.Path) && matchAnyQueryArg(e.SrcQueryArgs, u.Query()) {
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return e.URLPrefix, e.HeadersConf
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}
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}
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if ui.URLPrefix != nil {
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return ui.URLPrefix, ui.HeadersConf
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}
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return nil, HeadersConf{}
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}
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func matchAnyRegex(rs []*Regex, s string) bool {
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if len(rs) == 0 {
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return true
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}
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for _, r := range rs {
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if r.match(s) {
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return true
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}
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}
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return false
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}
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func matchAnyQueryArg(qas []QueryArg, args url.Values) bool {
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if len(qas) == 0 {
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return true
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}
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for _, qa := range qas {
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if slices.Contains(args[qa.Name], qa.Value) {
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return true
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}
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}
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return false
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}
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func normalizeURL(uOrig *url.URL) *url.URL {
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u := *uOrig
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// Prevent from attacks with using `..` in r.URL.Path
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u.Path = path.Clean(u.Path)
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if !strings.HasSuffix(u.Path, "/") && strings.HasSuffix(uOrig.Path, "/") {
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// The path.Clean() removes trailing slash.
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// Return it back if needed.
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// This should fix https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1752
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u.Path += "/"
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}
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if !strings.HasPrefix(u.Path, "/") {
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u.Path = "/" + u.Path
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}
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if u.Path == "/" {
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// See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1554
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u.Path = ""
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}
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return &u
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}
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