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fuzztag_exec.go
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fuzztag_exec.go
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package mutate
import (
"github.com/pkg/errors"
"github.com/yaklang/yaklang/common/fuzztag"
utils2 "github.com/yaklang/yaklang/common/utils"
)
type FuzzTagConfig struct {
tagHandlersEx map[string]func(string) []*fuzztag.FuzzExecResult
tagHandlers map[string]func(string) []string
resultHandler func(string, []string) bool
}
func NewFuzzTagConfig() *FuzzTagConfig {
return &FuzzTagConfig{
tagHandlers: make(map[string]func(string) []string),
tagHandlersEx: make(map[string]func(string) []*fuzztag.FuzzExecResult),
}
}
func (f *FuzzTagConfig) AddFuzzTagHandler(tag string, handler func(string) []string) {
f.tagHandlers[tag] = handler
}
func (f *FuzzTagConfig) AddFuzzTagHandlerEx(tag string, handler func(string) []*fuzztag.FuzzExecResult) {
f.tagHandlersEx[tag] = handler
}
func (f *FuzzTagConfig) GetFuzzTagHandler(tag string) func(string) []string {
return f.tagHandlers[tag]
}
func (f *FuzzTagConfig) GetFuzzTagHandlerKeys() []string {
keys := make([]string, 0, len(f.tagHandlers))
for k := range f.tagHandlers {
keys = append(keys, k)
}
return keys
}
func (f *FuzzTagConfig) GetFuzzTagHandlerValues() []func(string) []string {
values := make([]func(string) []string, 0, len(f.tagHandlers))
for _, v := range f.tagHandlers {
values = append(values, v)
}
return values
}
func (f *FuzzTagConfig) GetFuzzTagHandlerLen() int {
return len(f.tagHandlers)
}
func (f *FuzzTagConfig) GetFuzzTagHandlerMap() map[string]func(string) []string {
return f.tagHandlers
}
func (f *FuzzTagConfig) GetFuzzTagHandlerExMap() map[string]func(string) []*fuzztag.FuzzExecResult {
return f.tagHandlersEx
}
func (f *FuzzTagConfig) SetFuzzTagHandlerMap(m map[string]func(string) []string) {
f.tagHandlers = m
}
func (f *FuzzTagConfig) MergeFuzzTagHandlerExMap(m map[string]func(string) []*fuzztag.FuzzExecResult) {
for k, v := range m {
f.tagHandlersEx[k] = v
}
}
func (f *FuzzTagConfig) MergeFuzzTagHandlerMap(m map[string]func(string) []string) {
for k, v := range m {
f.tagHandlers[k] = v
}
}
func (f *FuzzTagConfig) MergeFuzzTagHandlerConfig(c *FuzzTagConfig) {
for k, v := range c.tagHandlers {
f.tagHandlers[k] = v
}
}
func (f *FuzzTagConfig) ClearFuzzTagHandler() {
f.tagHandlers = make(map[string]func(string) []string)
}
type FuzzConfigOpt func(config *FuzzTagConfig)
func Fuzz_WithExtraFuzzTagHandler(tag string, handler func(string) []string) FuzzConfigOpt {
return func(config *FuzzTagConfig) {
config.AddFuzzTagHandler(tag, handler)
}
}
func Fuzz_WithExtraFuzzTagHandlerEx(tag string, handler func(string) []*fuzztag.FuzzExecResult) FuzzConfigOpt {
return func(config *FuzzTagConfig) {
config.AddFuzzTagHandlerEx(tag, handler)
}
}
func Fuzz_WithResultHandler(handler func(string, []string) bool) FuzzConfigOpt {
return func(config *FuzzTagConfig) {
config.resultHandler = handler
}
}
func Fuzz_WithParams(i interface{}) FuzzConfigOpt {
m := utils2.InterfaceToGeneralMap(i)
return Fuzz_WithExtraFuzzTagHandler("params", func(s string) []string {
if m == nil {
return []string{""}
}
if i, ok := m[s]; ok {
return utils2.InterfaceToStringSlice(i)
}
return []string{""}
})
}
func FuzzTagExec(input interface{}, opts ...FuzzConfigOpt) (_ []string, err error) {
config := NewFuzzTagConfig()
config.MergeFuzzTagHandlerMap(defaultFuzzTag)
config.MergeFuzzTagHandlerExMap(defaultFuzzTagEx)
for _, opt := range opts {
opt(config)
}
defer func() {
if recoveredErr := recover(); recoveredErr != nil {
err = errors.Errorf("reocvered for rendering fuzztag: %s", recoveredErr)
if config.resultHandler != nil {
config.resultHandler(utils2.InterfaceToString(input), []string{}) // 做一个兜底,panic了也不会影响发包
}
}
}()
return fuzztag.ExecuteWithStringHandlerWithCallbackEx(
input, config.GetFuzzTagHandlerMap(), config.GetFuzzTagHandlerExMap(),
config.resultHandler,
)
}