forked from freman/caddy-reauth
/
secrets.go
121 lines (102 loc) · 2.17 KB
/
secrets.go
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package secrets
import (
"github.com/caddyserver/caddy"
"github.com/caddyserver/caddy/caddyhttp/httpserver"
"github.com/pkg/errors"
"gopkg.in/yaml.v2"
"io/ioutil"
"net/http"
"os"
"github.com/hashicorp/go-getter"
)
func init() {
caddy.RegisterPlugin("secrets", caddy.Plugin{
ServerType: "http",
Action: Setup,
})
}
type SecretsHandler struct {
Next httpserver.Handler
}
var SecretsMap yaml.MapSlice
func GetObject(mapslice yaml.MapSlice, key string) yaml.MapSlice {
for _, s := range mapslice {
if s.Key == key {
return s.Value.(yaml.MapSlice)
}
}
return nil
}
func GetArray(mapslice yaml.MapSlice, key string) []interface{} {
for _, s := range mapslice {
if s.Key == key {
return s.Value.([]interface{})
}
}
return nil
}
func GetValue(mapslice yaml.MapSlice, key string) interface{} {
for _, s := range mapslice {
if s.Key == key {
return s.Value
}
}
return nil
}
func FindKey(mapslice yaml.MapSlice, key string) bool {
for _, s := range mapslice {
if s.Key == key {
return true
}
}
return false
}
func Setup(c *caddy.Controller) error {
if c.Next() {
c.Next()
fileName := c.Val()
pwd, err := os.Getwd()
if err != nil {
return err
}
client := &getter.Client{
Src: fileName,
Dst: ".secrets_file.yml",
Dir: false,
Pwd: pwd,
Getters: getter.Getters,
}
if err := client.Get(); err != nil {
return errors.Wrap(err, "Error downloading")
}
if err := readFile(".secrets_file.yml"); err != nil {
return err
}
cfg := httpserver.GetConfig(c)
mid := func(next httpserver.Handler) httpserver.Handler {
return SecretsHandler{
Next: next,
}
}
cfg.AddMiddleware(mid)
if len(c.RemainingArgs()) > 0 {
return errors.New("Secrets middleware received more arguments than expected")
}
}
return nil
}
func readFile(fileName string) error {
m := yaml.MapSlice{}
if content, err := ioutil.ReadFile(fileName); err != nil {
return err
} else {
if err = yaml.Unmarshal([]byte(content), &m); err != nil {
return err
}
SecretsMap = m
}
return nil
}
func (h SecretsHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
return h.Next.ServeHTTP(w, r)
}