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internal/bech32: remove data length limit

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Fixes #453
This commit is contained in:
Filippo Valsorda
2022-12-23 12:28:06 +01:00
parent bf8d2a3911
commit 7354aa0d08
4 changed files with 60 additions and 10 deletions
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35
cmd/age/age_test.go
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@@ -5,6 +5,7 @@
package main
import (
"bufio"
"os"
"testing"
@@ -28,11 +29,45 @@ func TestMain(m *testing.M) {
main()
return 0
},
"age-plugin-test": func() (exitCode int) {
// TODO: use plugin server package once it's available.
switch os.Args[1] {
case "--age-plugin=recipient-v1":
scanner := bufio.NewScanner(os.Stdin)
scanner.Scan() // add-recipient
scanner.Scan() // body
scanner.Scan() // wrap-file-key
scanner.Scan() // body
fileKey := scanner.Text()
scanner.Scan() // done
scanner.Scan() // body
os.Stdout.WriteString("-> recipient-stanza 0 test\n")
os.Stdout.WriteString(fileKey + "\n")
os.Stdout.WriteString("-> done\n\n")
return 0
case "--age-plugin=identity-v1":
scanner := bufio.NewScanner(os.Stdin)
scanner.Scan() // add-identity
scanner.Scan() // body
scanner.Scan() // recipient-stanza
scanner.Scan() // body
fileKey := scanner.Text()
scanner.Scan() // done
scanner.Scan() // body
os.Stdout.WriteString("-> file-key 0\n")
os.Stdout.WriteString(fileKey + "\n")
os.Stdout.WriteString("-> done\n\n")
return 0
default:
return 1
}
},
}))
}
func TestScript(t *testing.T) {
testscript.Run(t, testscript.Params{
Dir: "testdata",
// TODO: enable AGEDEBUG=plugin without breaking stderr checks.
})
}

20
cmd/age/testdata/plugin.txt vendored Normal file
View File

@@ -0,0 +1,20 @@
# encrypt and decrypt a file with a test plugin
age -r age1test10qdmzv9q -o test.age input
age -d -i key.txt test.age
cmp stdout input
! stderr .
# very long identity and recipient
age -R long-recipient.txt -o test.age input
age -d -i long-key.txt test.age
cmp stdout input
! stderr .
-- input --
test
-- key.txt --
AGE-PLUGIN-TEST-10Q32NLXM
-- long-recipient.txt --
age1test10pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7qj6rl8p
-- long-key.txt --
AGE-PLUGIN-TEST-10PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7RC0PU8S7Q5U8SUD

6
internal/bech32/bech32.go
View File

@@ -111,9 +111,6 @@ func Encode(hrp string, data []byte) (string, error) {
if err != nil {
return "", err
}
if len(hrp)+len(values)+7 > 90 {
return "", fmt.Errorf("too long: hrp length=%d, data length=%d", len(hrp), len(values))
}
if len(hrp) < 1 {
return "", fmt.Errorf("invalid HRP: %q", hrp)
}
@@ -144,9 +141,6 @@ func Encode(hrp string, data []byte) (string, error) {
// Decode decodes a Bech32 string. If the string is uppercase, the HRP will be uppercase.
func Decode(s string) (hrp string, data []byte, err error) {
if len(s) > 90 {
return "", nil, fmt.Errorf("too long: len=%d", len(s))
}
if strings.ToLower(s) != s && strings.ToUpper(s) != s {
return "", nil, fmt.Errorf("mixed case")
}

9
internal/bech32/bech32_test.go
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@@ -28,7 +28,7 @@ func TestBech32(t *testing.T) {
str string
valid bool
}{
{"A12UEL5L", true},
{"A12UEL5L", true}, // empty
{"a12uel5l", true},
{"an83characterlonghumanreadablepartthatcontainsthenumber1andtheexcludedcharactersbio1tt5tgs", true},
{"abcdef1qpzry9x8gf2tvdw0s3jn54khce6mua7lmqqqxw", true},
@@ -44,11 +44,12 @@ func TestBech32(t *testing.T) {
{"1checkupstagehandshakeupstreamerranterredcaperred2y9e3w", false}, // empty hrp
// invalid character (DEL) in hrp
{"spl" + string(rune(127)) + "t1checkupstagehandshakeupstreamerranterredcaperred2y9e3w", false},
// too long
{"11qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqsqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqc8247j", false},
// long vectors that we do accept despite the spec, see Issue 453
{"long10pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7rc0pu8s7qfcsvr0", true},
{"an84characterslonghumanreadablepartthatcontainsthenumber1andtheexcludedcharactersbio1569pvx", true},
// BIP 173 invalid vectors.
{"an84characterslonghumanreadablepartthatcontainsthenumber1andtheexcludedcharactersbio1569pvx", false},
{"pzry9x0s0muk", false},
{"1pzry9x0s0muk", false},
{"x1b4n0q5v", false},