91 lines
2.4 KiB
Go
91 lines
2.4 KiB
Go
package main
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import (
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"fmt"
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"io/ioutil"
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"strings"
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"path/filepath"
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"io"
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"os"
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"regexp"
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"syscall"
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"time"
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)
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const TrustedDomainsTemplate = "/nginx/var/OidcTrustedDomains.js.tmpl"
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const TrustedDomains = "/nginx/var/OidcTrustedDomains.js"
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func logInfo(s string){
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log(os.Stdout, fmt.Sprintf("INFO %s", s))
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}
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func logError(s string){
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log(os.Stderr, fmt.Sprintf("ERROR %s", s))
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}
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func log(r io.Writer, s string) {
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fmt.Fprintf(r, "%s %s\n", time.Now().Format(time.RFC3339), s)
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}
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func main() {
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// find all the files that contain AUTH_SUPPORTED_SCOPES
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err := filepath.Walk("/nginx/var",
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func(path string, info os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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text, _ := ioutil.ReadFile(path)
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if strings.Contains(string(text), "AUTH_SUPPORTED_SCOPES") {
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replaceEnv(path, string(text))
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}
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return nil
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})
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if err != nil {
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logError(fmt.Sprintf("filepath.Walk(\"/nginx/var\"): %s", err))
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os.Exit(1)
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}
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// replace custom files
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custom := []string{TrustedDomainsTemplate}
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for _, path := range custom {
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text, _ := ioutil.ReadFile(path)
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replaceEnv(path, string(text))
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}
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// rename tmpl
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os.Rename(TrustedDomainsTemplate, TrustedDomains)
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logInfo("starting dashboard")
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if err = syscall.Exec("/usr/local/bin/nginx", []string{}, os.Environ()); err != nil {
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os.Exit(1)
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}
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}
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func replaceEnv(path string, text string){
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nextjs := []string{"USE_AUTH0", "AUTH_AUDIENCE", "AUTH_AUTHORITY", "AUTH_CLIENT_ID", "AUTH_CLIENT_SECRET", "AUTH_SUPPORTED_SCOPES", "NETBIRD_MGMT_API_ENDPOINT", "NETBIRD_MGMT_GRPC_API_ENDPOINT", "NETBIRD_HOTJAR_TRACK_ID", "NETBIRD_GOOGLE_ANALYTICS_ID", "NETBIRD_GOOGLE_TAG_MANAGER_ID", "AUTH_REDIRECT_URI", "AUTH_SILENT_REDIRECT_URI", "NETBIRD_TOKEN_SOURCE", "NETBIRD_DRAG_QUERY_PARAMS"}
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// replace all environment variables in file
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for _, e := range os.Environ() {
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key := strings.Split(e, "=")[0]
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value := os.Getenv(key)
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text = string(regexp.MustCompile(fmt.Sprintf(`\$%s`, key)).ReplaceAllString(text, value))
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}
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// replace all not set environment variables in file
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for _, e := range nextjs {
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text = string(regexp.MustCompile(fmt.Sprintf(`\$%s`, e)).ReplaceAllString(text, ""))
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}
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err := ioutil.WriteFile(path, []byte(text), os.ModePerm)
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if err != nil {
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logError(fmt.Sprintf("ioutil.WriteFile(%s): %s", path, err))
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os.Exit(3)
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}
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}
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func getEnv(key, fallback string) string {
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if value, ok := os.LookupEnv(key); ok {
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return value
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}
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return fallback
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} |