9f97fcaf81
ADDED: * The ability to show both IPv4 and IPv6 addresses (if the client has dual-stack and either the server does as well or a separate ClientInfo is running on the "other" net family).
96 lines
2.3 KiB
Go
96 lines
2.3 KiB
Go
package server
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import (
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`embed`
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`encoding/json`
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`encoding/xml`
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`html/template`
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`os`
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`syscall`
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sysdUtil `github.com/coreos/go-systemd/util`
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`github.com/goccy/go-yaml`
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)
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const (
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convertTag string = "uaField"
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prettyTag string = "renderName"
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baseTitle string = "r00t^2 Client Info Revealer"
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titleSep string = " || "
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xmlHdrElem string = "header"
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xmlHdrElemName string = "name"
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xmlHdrVal string = "value"
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nilUaFieldStr string = "(N/A)"
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trueUaFieldStr string = "Yes"
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falseUaFieldStr string = "No"
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dfltIndent string = " "
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httpRealHdr string = "X-ClientInfo-RealIP" // TODO: advise https://nginx.org/en/docs/http/ngx_http_realip_module.html NGINX module? Allow config for user-specified header?
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)
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var (
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//go:embed "tpl"
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tplDir embed.FS
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tpl *template.Template = template.Must(
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template.New("").
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Funcs(
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template.FuncMap{
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"getTitle": getTitle,
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"getIpver": getIpver,
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"safeUrl": safeUrl,
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},
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).ParseFS(tplDir, "tpl/*.tpl"),
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)
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)
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// Signal traps
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var (
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stopSigs []os.Signal = []os.Signal{
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syscall.SIGQUIT,
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os.Interrupt,
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syscall.SIGTERM,
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}
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reloadSigs []os.Signal = []os.Signal{
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syscall.SIGHUP,
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// We also add stopSigs so we trigger the Reload loop to close. TODO.
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syscall.SIGQUIT,
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os.Interrupt,
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syscall.SIGTERM,
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}
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isSystemd bool = sysdUtil.IsRunningSystemd()
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)
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// media/MIME types
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const (
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mediaJSON string = "application/json"
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mediaXML string = "application/xml"
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mediaYAML string = "application/yaml"
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mediaHTML string = "text/html"
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// TODO: plain/text? CSV? TOML?
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)
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var (
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// mediaNoIndent covers everything (except HTML).
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mediaNoIndent map[string]func(obj any) (b []byte, err error) = map[string]func(obj any) (b []byte, err error){
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mediaJSON: json.Marshal,
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mediaXML: xml.Marshal,
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mediaYAML: yaml.Marshal,
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// HTML is handled explicitly.
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}
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// mediaIndent only contains MIME types that support configured indents.
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mediaIndent map[string]func(obj any, pfx string, indent string) (b []byte, err error) = map[string]func(obj any, pfx string, indent string) (b []byte, err error){
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mediaJSON: json.MarshalIndent,
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mediaXML: xml.MarshalIndent,
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}
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// valid MIMEs.
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okAcceptMime []string = []string{
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mediaJSON,
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mediaXML,
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mediaYAML,
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mediaHTML,
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}
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// These are actually HTML.
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htmlOverride map[string]bool = map[string]bool{
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"Links": true,
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}
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)
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