1package main
  2
  3// Commands for administering your instance
  4// reset user password -> generate link
  5// delete user
  6
  7// Run some scripts to setup your instance
  8
  9import (
 10	"flag"
 11	"fmt"
 12	"golang.org/x/crypto/ssh/terminal"
 13	"io/ioutil"
 14	"log"
 15	"os"
 16	"path"
 17	"path/filepath"
 18	"syscall"
 19)
 20
 21// TODO improve cli
 22func runAdminCommand() {
 23	args := flag.Args() // again?
 24	if len(args) < 3 {
 25		fmt.Println("Expected subcommand with parameter activate-user|delete-user|make-admin|rename-user")
 26		os.Exit(1)
 27	}
 28	var err error
 29	switch args[1] {
 30	case "activate-user":
 31		username := args[2]
 32		err = activateUser(username)
 33	case "delete-user":
 34		username := args[2]
 35		// TODO add confirmation
 36		err = deleteUser(username)
 37	case "make-admin":
 38		username := args[2]
 39		err = makeAdmin(username)
 40	case "rename-user":
 41		username := args[2]
 42		newUsername := args[3]
 43		err = renameUser(username, newUsername)
 44	case "set-password":
 45		username := args[2]
 46		fmt.Print("Enter New Password: ")
 47		bytePassword, err := terminal.ReadPassword(int(syscall.Stdin))
 48		if err != nil {
 49			setPassword(username, bytePassword)
 50		}
 51	}
 52	if err != nil {
 53		log.Fatal(err)
 54	}
 55	// reset password
 56
 57}
 58
 59func makeAdmin(username string) error {
 60	_, err := DB.Exec("UPDATE user SET admin = true WHERE username = $1", username)
 61	if err != nil {
 62		return err
 63	}
 64	log.Println("Made admin user", username)
 65	return nil
 66}
 67
 68func setPassword(username string, newPass []byte) error {
 69	return nil
 70}
 71
 72func activateUser(username string) error {
 73	_, err := DB.Exec("UPDATE user SET active = true WHERE username = ?", username)
 74	if err != nil {
 75		// TODO verify 1 row updated
 76		return err
 77	}
 78	log.Println("Activated user", username)
 79	baseIndex := `# Welcome to Flounder!
 80## About
 81Welcome to an ultra-lightweight platform for making and sharing small websites. You can get started by editing this page -- remove this content and replace it with whatever you like! It will be live at <your-name>.flounder.online. You can go there right now to see what this page currently looks like. Here is a link to a page which will give you more information about using flounder:
 82=> //admin.flounder.online
 83
 84And here's a guide to the text format that Flounder uses to create pages, Gemini. These pages are converted into HTML so they can be displayed in a web browser.
 85=> //admin.flounder.online/gemini_text_guide.gmi
 86
 87Have fun!`
 88	// Redundant filepath.Clean call just in case.
 89	username = filepath.Clean(username)
 90	os.Mkdir(path.Join(c.FilesDirectory, username), os.ModePerm)
 91	ioutil.WriteFile(path.Join(c.FilesDirectory, username, "index.gmi"), []byte(baseIndex), 0644)
 92	os.Mkdir(path.Join(c.FilesDirectory, username), os.ModePerm)
 93	return nil
 94}
 95
 96func renameUser(oldUsername string, newUsername string) error {
 97	err := isOkUsername(newUsername)
 98	if err != nil {
 99		return err
100	}
101	res, err := DB.Exec("UPDATE user set username = ? WHERE username = ?", newUsername, oldUsername)
102	if err != nil {
103		return err
104	}
105	rowsAffected, err := res.RowsAffected()
106	if rowsAffected != 1 {
107		return fmt.Errorf("No User updated %s %s", oldUsername, newUsername)
108	} else if err != nil {
109		return err
110	}
111	userFolder := path.Join(c.FilesDirectory, oldUsername)
112	newUserFolder := path.Join(c.FilesDirectory, newUsername)
113	err = os.Rename(userFolder, newUserFolder)
114	if err != nil {
115		// This would be bad. User in broken, insecure state.
116		// TODO some sort of better handling?
117		return err
118	}
119	log.Printf("Changed username from %s to %s", oldUsername, newUsername)
120	return nil
121}
122
123func deleteUser(username string) error {
124	_, err := DB.Exec("DELETE FROM user WHERE username = $1", username)
125	if err != nil {
126		return err
127	}
128	username = filepath.Clean(username)
129	err = os.RemoveAll(path.Join(c.FilesDirectory, username))
130	if err != nil {
131		// bad state
132		return err
133	}
134	log.Println("Deleted user", username)
135	return nil
136}