forked from cryptag/cryptag
/
cryptag-sandstorm.go
284 lines (226 loc) · 6.02 KB
/
cryptag-sandstorm.go
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// Steve Phillips / elimisteve
// 2015.02.24
package main
import (
"fmt"
"io/ioutil"
"log"
"os"
"path"
"path/filepath"
"regexp"
"strconv"
"strings"
"github.com/elimisteve/cryptag"
"github.com/elimisteve/cryptag/backend"
"github.com/elimisteve/cryptag/cli/color"
"github.com/elimisteve/cryptag/types"
)
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.Fatalf("%s\n%s\n", initUsage, usage)
}
if err := createBackendConfig(os.Args[2]); err != nil {
log.Fatal(err)
}
case "create", "createfile":
if len(os.Args) < 4 {
log.Println("At least 3 command line arguments must be included")
log.Fatal(usage)
}
createFile := (os.Args[1] == "createfile")
var rowData []byte
tags := append(os.Args[3:], "app:cryptag")
if createFile {
filename := os.Args[2]
b, err := ioutil.ReadFile(filename)
if err != nil {
log.Fatalf("Error reading file `%s`: %v\n", filename, err)
}
rowData = b
tags = append(tags, "type:file", "filename:"+filepath.Base(filename))
} else {
rowData = []byte(os.Args[2])
tags = append(tags, "type:text")
}
row, err := backend.CreateRow(db, nil, rowData, tags)
if err != nil {
log.Fatalf("Error creating then saving new row: %v", err)
}
if createFile {
color.Printf("Successfully saved new row with these tags:\n%v\n",
color.Tags(row.PlainTags()))
} else {
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)
}
case "list":
plaintags := os.Args[2:]
if len(plaintags) == 0 {
plaintags = []string{"all"}
}
rows, err := backend.ListRowsFromPlainTags(db, nil, plaintags)
if err != nil {
log.Fatal(err)
}
rowStrs := make([]string, len(rows))
for i := range rows {
// For non-file Rows, this will be empty string
fname := types.RowTagWithPrefix(rows[i], "filename:")
rowStrs[i] = color.TextAndTags(fname, rows[i].PlainTags())
}
color.Println(strings.Join(rowStrs, "\n\n"))
case "get", "getfiles":
getFile := (os.Args[1] == "getfiles")
plaintags := os.Args[2:]
if getFile {
plaintags = append(plaintags, "type:file")
} else {
plaintags = append(plaintags, "type:text")
}
rows, err := backend.RowsFromPlainTags(db, nil, plaintags)
if err != nil {
log.Fatal(err)
}
// Text rows; print then exit
if !getFile {
color.Println(color.TextRows(rows))
return
}
// File rows; save them to files
dir := path.Join(cryptag.TrustedBasePath, "decrypted", backendName)
for _, row := range rows {
fname, err := types.SaveRowAsFile(row, dir)
if err != nil {
log.Printf("Error locally saving file: %s\n", err)
continue
}
log.Printf("Successfully saved row to file %s", fname)
}
case "tags":
pairs, err := db.AllTagPairs()
if err != nil {
log.Fatal(err)
}
for _, pair := range pairs {
color.Printf("%s %s\n", pair.Random, color.BlackOnWhite(pair.Plain()))
}
case "delete", "deletefiles":
if len(os.Args) < 3 {
log.Println("At least 2 command line arguments must be included")
log.Fatal(usage)
}
deleteFiles := (os.Args[1] == "deletefiles")
plaintags := os.Args[2:]
if deleteFiles {
plaintags = append(plaintags, "type:file")
} else {
plaintags = append(plaintags, "type:text")
}
if err := backend.DeleteRows(db, nil, plaintags); err != nil {
log.Fatalf("Error deleting rows: %v\n", err)
}
log.Println("Row(s) successfully deleted")
default:
log.Printf("Subcommand `%s` not valid\n", os.Args[1])
log.Println(usage)
}
}
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 := 1; i < len(k); i++ {
kStr += fmt.Sprintf(",%d", k[i])
}
return kStr
}