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package exprparser
import (
"crypto/sha256"
"encoding/hex"
"encoding/json"
"fmt"
"io"
"io/fs"
"os"
"path/filepath"
"reflect"
"strconv"
"strings"
"github.com/go-git/go-git/v5/plumbing/format/gitignore"
"github.com/nektos/act/pkg/model"
"github.com/rhysd/actionlint"
)
func (impl *interperterImpl) contains(search, item reflect.Value) (bool, error) {
switch search.Kind() {
case reflect.String, reflect.Int, reflect.Float64, reflect.Bool, reflect.Invalid:
return strings.Contains(
strings.ToLower(impl.coerceToString(search).String()),
strings.ToLower(impl.coerceToString(item).String()),
), nil
case reflect.Slice:
for i := 0; i < search.Len(); i++ {
arrayItem := search.Index(i).Elem()
result, err := impl.compareValues(arrayItem, item, actionlint.CompareOpNodeKindEq)
if err != nil {
return false, err
}
if isEqual, ok := result.(bool); ok && isEqual {
return true, nil
}
}
}
return false, nil
}
func (impl *interperterImpl) startsWith(searchString, searchValue reflect.Value) (bool, error) {
return strings.HasPrefix(
strings.ToLower(impl.coerceToString(searchString).String()),
strings.ToLower(impl.coerceToString(searchValue).String()),
), nil
}
func (impl *interperterImpl) endsWith(searchString, searchValue reflect.Value) (bool, error) {
return strings.HasSuffix(
strings.ToLower(impl.coerceToString(searchString).String()),
strings.ToLower(impl.coerceToString(searchValue).String()),
), nil
}
const (
passThrough = iota
bracketOpen
bracketClose
)
func (impl *interperterImpl) format(str reflect.Value, replaceValue ...reflect.Value) (string, error) {
input := impl.coerceToString(str).String()
output := ""
replacementIndex := ""
state := passThrough
for _, character := range input {
switch state {
case passThrough: // normal buffer output
switch character {
case '{':
state = bracketOpen
case '}':
state = bracketClose
default:
output += string(character)
}
case bracketOpen: // found {
switch character {
case '{':
output += "{"
replacementIndex = ""
state = passThrough
case '}':
index, err := strconv.ParseInt(replacementIndex, 10, 32)
if err != nil {
return "", fmt.Errorf("The following format string is invalid: '%s'", input)
}
replacementIndex = ""
if len(replaceValue) <= int(index) {
return "", fmt.Errorf("The following format string references more arguments than were supplied: '%s'", input)
}
output += impl.coerceToString(replaceValue[index]).String()
state = passThrough
default:
replacementIndex += string(character)
}
case bracketClose: // found }
switch character {
case '}':
output += "}"
replacementIndex = ""
state = passThrough
default:
panic("Invalid format parser state")
}
}
}
if state != passThrough {
switch state {
case bracketOpen:
return "", fmt.Errorf("Unclosed brackets. The following format string is invalid: '%s'", input)
case bracketClose:
return "", fmt.Errorf("Closing bracket without opening one. The following format string is invalid: '%s'", input)
}
}
return output, nil
}
func (impl *interperterImpl) join(array reflect.Value, sep reflect.Value) (string, error) {
separator := impl.coerceToString(sep).String()
switch array.Kind() {
case reflect.Slice:
var items []string
for i := 0; i < array.Len(); i++ {
items = append(items, impl.coerceToString(array.Index(i).Elem()).String())
}
return strings.Join(items, separator), nil
default:
return strings.Join([]string{impl.coerceToString(array).String()}, separator), nil
}
}
func (impl *interperterImpl) toJSON(value reflect.Value) (string, error) {
if value.Kind() == reflect.Invalid {
return "null", nil
}
json, err := json.MarshalIndent(value.Interface(), "", " ")
if err != nil {
return "", fmt.Errorf("Cannot convert value to JSON. Cause: %v", err)
}
return string(json), nil
}
func (impl *interperterImpl) fromJSON(value reflect.Value) (interface{}, error) {
if value.Kind() != reflect.String {
return nil, fmt.Errorf("Cannot parse non-string type %v as JSON", value.Kind())
}
var data interface{}
err := json.Unmarshal([]byte(value.String()), &data)
if err != nil {
return nil, fmt.Errorf("Invalid JSON: %v", err)
}
return data, nil
}
func (impl *interperterImpl) hashFiles(paths ...reflect.Value) (string, error) {
var ps []gitignore.Pattern
const cwdPrefix = "." + string(filepath.Separator)
const excludeCwdPrefix = "!" + cwdPrefix
for _, path := range paths {
if path.Kind() == reflect.String {
cleanPath := path.String()
if strings.HasPrefix(cleanPath, cwdPrefix) {
cleanPath = cleanPath[len(cwdPrefix):]
} else if strings.HasPrefix(cleanPath, excludeCwdPrefix) {
cleanPath = "!" + cleanPath[len(excludeCwdPrefix):]
}
ps = append(ps, gitignore.ParsePattern(cleanPath, nil))
} else {
return "", fmt.Errorf("Non-string path passed to hashFiles")
}
}
matcher := gitignore.NewMatcher(ps)
var files []string
if err := filepath.Walk(impl.config.WorkingDir, func(path string, fi fs.FileInfo, err error) error {
if err != nil {
return err
}
sansPrefix := strings.TrimPrefix(path, impl.config.WorkingDir+string(filepath.Separator))
parts := strings.Split(sansPrefix, string(filepath.Separator))
if fi.IsDir() || !matcher.Match(parts, fi.IsDir()) {
return nil
}
files = append(files, path)
return nil
}); err != nil {
return "", fmt.Errorf("Unable to filepath.Walk: %v", err)
}
if len(files) == 0 {
return "", nil
}
hasher := sha256.New()
for _, file := range files {
f, err := os.Open(file)
if err != nil {
return "", fmt.Errorf("Unable to os.Open: %v", err)
}
if _, err := io.Copy(hasher, f); err != nil {
return "", fmt.Errorf("Unable to io.Copy: %v", err)
}
if err := f.Close(); err != nil {
return "", fmt.Errorf("Unable to Close file: %v", err)
}
}
return hex.EncodeToString(hasher.Sum(nil)), nil
}
func (impl *interperterImpl) getNeedsTransitive(job *model.Job) []string {
needs := job.Needs()
for _, need := range needs {
parentNeeds := impl.getNeedsTransitive(impl.config.Run.Workflow.GetJob(need))
needs = append(needs, parentNeeds...)
}
return needs
}
func (impl *interperterImpl) always() (bool, error) {
return true, nil
}
func (impl *interperterImpl) jobSuccess() (bool, error) {
jobs := impl.config.Run.Workflow.Jobs
jobNeeds := impl.getNeedsTransitive(impl.config.Run.Job())
for _, needs := range jobNeeds {
if jobs[needs].Result != "success" {
return false, nil
}
}
return true, nil
}
func (impl *interperterImpl) stepSuccess() (bool, error) {
return impl.env.Job.Status == "success", nil
}
func (impl *interperterImpl) jobFailure() (bool, error) {
jobs := impl.config.Run.Workflow.Jobs
jobNeeds := impl.getNeedsTransitive(impl.config.Run.Job())
for _, needs := range jobNeeds {
if jobs[needs].Result == "failure" {
return true, nil
}
}
return false, nil
}
func (impl *interperterImpl) stepFailure() (bool, error) {
return impl.env.Job.Status == "failure", nil
}
func (impl *interperterImpl) cancelled() (bool, error) {
return impl.env.Job.Status == "cancelled", nil
}