forked from cryptag/cryptag
/
cryptpass.go
193 lines (152 loc) · 3.98 KB
/
cryptpass.go
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// Steve Phillips / elimisteve
// 2015.02.24
package main
import (
"fmt"
"log"
"os"
"path/filepath"
"regexp"
"strconv"
"strings"
"github.com/elimisteve/clipboard"
"github.com/elimisteve/cryptag"
"github.com/elimisteve/cryptag/backend"
"github.com/elimisteve/cryptag/cli/color"
)
var backendName = "sandstorm-webserver"
func init() {
if bn := os.Getenv("BACKEND"); bn != "" {
backendName = bn
}
}
func main() {
if len(os.Args) == 1 {
log.Fatalln(usage)
}
var db *backend.WebserverBackend
if os.Args[1] != "init" {
var err error
db, err = backend.LoadWebserverBackend("", backendName)
if err != nil {
log.Printf("%v\n", err)
log.Fatal(usage)
}
}
if cryptag.UseTor {
err := db.UseTor()
if err != nil {
log.Fatalf("Error trying to use Tor: %v\n", err)
}
}
switch os.Args[1] {
case "init":
if len(os.Args) < 3 {
log.Fatal(initUsage)
}
if err := createBackendConfig(os.Args[2]); err != nil {
log.Fatal(err)
}
case "create":
if len(os.Args) < 4 {
log.Println("At least 3 command line arguments must be included")
log.Fatal(usage)
}
data := os.Args[2]
tags := append(os.Args[3:], "app:cryptpass", "type:text")
row, err := backend.CreateRow(db, nil, []byte(data), tags)
if err != nil {
log.Fatalf("Error creating then saving new row: %v", err)
}
color.Println(color.TextRow(row))
case "getkey":
fmt.Println(fmtKey(db.Key()))
case "setkey":
if len(os.Args) < 3 {
log.Println("At least 2 command line arguments must be included")
log.Fatal(usage)
}
keyStr := strings.Join(os.Args[2:], ",")
newKey, err := parseKey(keyStr)
if err != nil {
log.Fatalf("Error from parseKey: %v\n", err)
}
cfg, err := db.ToConfig()
if err != nil {
log.Fatal(err)
}
cfg.Key = newKey
if err := cfg.Update(cryptag.BackendPath); err != nil {
log.Fatalf("Error updating config: %v", err)
}
default: // Search
// Empty clipboard
clipboard.WriteAll(nil)
plaintags := append(os.Args[1:], "type:text")
rows, err := backend.RowsFromPlainTags(db, nil, plaintags)
if err != nil {
log.Fatal(err)
}
// Add first row's contents to clipboard
dec := rows[0].Decrypted()
if err = clipboard.WriteAll(dec); err != nil {
log.Printf("Error writing first result to clipboard: %v\n", err)
} else {
log.Printf("Added first result `%s` to clipboard\n", dec)
}
color.Println(color.TextRows(rows))
}
}
var usage = "Usage: " + filepath.Base(os.Args[0]) + " [create <yourpassword>] tag1 [tag2 ...]"
var initUsage = "Usage: " + filepath.Base(os.Args[0]) + " init <sandstorm_key>"
func createBackendConfig(key string) error {
info := strings.SplitN(key, "#", 2)
if len(info) < 2 {
return fmt.Errorf(
"Error parsing `%v` as Sandstorm key generated from Sandstorm's UI",
key)
}
serverBaseURL, authToken := info[0], info[1]
db, err := backend.NewWebserverBackend(nil, backendName, serverBaseURL, authToken)
if err != nil {
return fmt.Errorf("NewWebserverBackend error: %v\n", err)
}
cfg, err := db.ToConfig()
if err != nil {
return fmt.Errorf("Error getting backend config: %v\n", err)
}
err = cfg.Save(cryptag.BackendPath)
if err != nil && err != backend.ErrConfigExists {
return fmt.Errorf("Error saving backend config to disk: %v\n", err)
}
return nil
}
var keyRegex = regexp.MustCompile(`(\d+)`)
func parseKey(cliDigits string) (*[32]byte, error) {
// Pluck out all digit sequences, convert to numbers
nums := keyRegex.FindAllString(cliDigits, -1)
if len(nums) != 32 {
return nil, fmt.Errorf("Key must include 32 numbers, not %d", len(nums))
}
var newKey [32]byte
for i := 0; i < 32; i++ {
n, err := strconv.ParseUint(nums[i], 10, 8)
if err != nil {
return nil, fmt.Errorf("Number #%d '%v' was invalid: %v\n", i+1,
nums[i])
}
newKey[i] = byte(n)
}
return &newKey, nil
}
func fmtKey(key *[32]byte) string {
if key == nil {
return "<nil>"
}
k := *key
kStr := fmt.Sprintf("%d", k[0])
for i := 0; i < len(k)-1; i++ {
kStr += fmt.Sprintf(",%d", k[i+1])
}
return kStr
}