0b85fe29f7
After the launch of the project, the testing infrastructure was shared with nginx project in some cases. To avoid port overlap, a decision was made to shift the port range for Unit tests. This problem was resolved a long time ago and is no longer relevant, so it is now safe to use port 8XXX range as the default, as it is more appropriate for testing purposes.
102 lines
1.6 KiB
Go
102 lines
1.6 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"unit.nginx.org/go"
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"os"
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"strconv"
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"io/ioutil"
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)
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type (
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NS struct {
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USER uint64
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PID uint64
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IPC uint64
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CGROUP uint64
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UTS uint64
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MNT uint64
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NET uint64
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}
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Output struct {
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PID int
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UID int
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GID int
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NS NS
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FileExists bool
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Mounts string
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}
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)
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func abortonerr(err error) {
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if err != nil {
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panic(err)
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}
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}
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// returns: [nstype]:[4026531835]
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func getns(nstype string) uint64 {
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str, err := os.Readlink(fmt.Sprintf("/proc/self/ns/%s", nstype))
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if err != nil {
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return 0
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}
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str = str[len(nstype)+2:]
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str = str[:len(str)-1]
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val, err := strconv.ParseUint(str, 10, 64)
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abortonerr(err)
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return val
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}
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func handler(w http.ResponseWriter, r *http.Request) {
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pid := os.Getpid()
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out := &Output{
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PID: pid,
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UID: os.Getuid(),
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GID: os.Getgid(),
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NS: NS{
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PID: getns("pid"),
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USER: getns("user"),
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MNT: getns("mnt"),
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IPC: getns("ipc"),
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UTS: getns("uts"),
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NET: getns("net"),
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CGROUP: getns("cgroup"),
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},
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}
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err := r.ParseForm()
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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if fname := r.Form.Get("file"); fname != "" {
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_, err = os.Stat(fname);
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out.FileExists = err == nil
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}
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if mounts := r.Form.Get("mounts"); mounts != "" {
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data, _ := ioutil.ReadFile("/proc/self/mountinfo")
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out.Mounts = string(data)
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}
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data, err := json.Marshal(out)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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w.Header().Add("Content-Type", "application/json")
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w.Write(data)
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}
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func main() {
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http.HandleFunc("/", handler)
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unit.ListenAndServe(":8080", nil)
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}
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