/
validators.go
161 lines (145 loc) · 4.08 KB
/
validators.go
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package rocketchat
import (
"github.com/go-playground/validator/v10"
"github.com/pru-mike/rocketchat-jira-webhook/config"
"github.com/pru-mike/rocketchat-jira-webhook/jira"
"github.com/pru-mike/rocketchat-jira-webhook/logger"
)
type Validate struct {
*validator.Validate
blacklistedJiraProjectKeys []string
whitelistedJiraProjectKeys []string
}
func SetupValidator(cfg *config.Rocketchat) *Validate {
var err error
validate := validator.New()
if err = validate.RegisterValidation("token", ValidateToken(cfg)); err != nil {
logger.Fatalf("ValidateToken registration failed: %v", err)
}
if err = validate.RegisterValidation("edits", ValidateEdits(cfg)); err != nil {
logger.Fatalf("ValidateEdits registration failed: %v", err)
}
if err = validate.RegisterValidation("bots", ValidateBots(cfg)); err != nil {
logger.Fatalf("ValidateBots registration failed: %v", err)
}
validate.RegisterStructValidation(ValidateInputMessageStructLevel(cfg), Input{})
return &Validate{
validate,
cfg.BlacklistedJiraProjectKeys,
cfg.WhitelistedJiraProjectKeys,
}
}
func (v *Validate) ValidateJiraKeys(keys []string) []string {
if len(v.blacklistedJiraProjectKeys) > 0 {
var i int
BlackListLoop:
for _, key := range keys {
prjKey := jira.StripKey(key)
for _, forbiddenKey := range v.blacklistedJiraProjectKeys {
if prjKey == forbiddenKey {
logger.Debugf("forbidden key with blacklist key %s", key)
continue BlackListLoop
}
}
keys[i] = key
i++
}
keys = keys[:i]
}
if len(v.whitelistedJiraProjectKeys) > 0 {
var i int
for _, key := range keys {
prjKey := jira.StripKey(key)
var allowed bool
for _, allowedKey := range v.whitelistedJiraProjectKeys {
if prjKey == allowedKey {
allowed = true
break
}
}
if !allowed {
logger.Debugf("forbidden key with whitelist key %s", key)
continue
}
keys[i] = key
i++
}
keys = keys[:i]
}
return keys
}
func AlwaysValid(validator.FieldLevel) bool {
return true
}
func ValidateToken(config *config.Rocketchat) func(validator.FieldLevel) bool {
if len(config.Tokens) == 0 {
return AlwaysValid
}
return func(fl validator.FieldLevel) bool {
reqToken := fl.Field().String()
for _, confToken := range config.Tokens {
if reqToken == confToken {
return true
}
}
return false
}
}
func ValidateEdits(config *config.Rocketchat) func(validator.FieldLevel) bool {
return func(fl validator.FieldLevel) bool {
isEdited := fl.Field().Bool()
return !isEdited || config.AllowEdits
}
}
func ValidateBots(config *config.Rocketchat) func(validator.FieldLevel) bool {
return func(fl validator.FieldLevel) bool {
isBot := fl.Field().Bool()
return !isBot || config.AllowBots
}
}
func ValidateInputMessageStructLevel(config *config.Rocketchat) func(validator.StructLevel) {
return func(sl validator.StructLevel) {
ValidateUserStructLevel(config)(sl)
ValidateChannelStructLevel(config)(sl)
}
}
func ValidateUserStructLevel(config *config.Rocketchat) func(validator.StructLevel) {
return validateWhiteListStructLevel(
"UserID", "UserName",
config.WhitelistedUsers, config.BlacklistedUsers,
)
}
func ValidateChannelStructLevel(config *config.Rocketchat) func(validator.StructLevel) {
return validateWhiteListStructLevel(
"ChannelID", "ChannelName",
config.WhitelistedChannels, config.BlacklistedChannels,
)
}
func validateWhiteListStructLevel(id, name string, whitelist []string, blacklist []string) func(validator.StructLevel) {
if len(whitelist) == 0 && len(blacklist) == 0 {
return func(validator.StructLevel) {}
}
return func(sl validator.StructLevel) {
ID := sl.Current().FieldByName(id).String()
Name := sl.Current().FieldByName(name).String()
for _, forbidden := range blacklist {
if ID == forbidden {
sl.ReportError(ID, id, id, "blacklisted", "")
return
}
if Name == forbidden {
sl.ReportError(Name, name, name, "blacklisted", "")
return
}
}
if len(whitelist) == 0 {
return
}
for _, allowed := range whitelist {
if ID == allowed || Name == allowed {
return
}
}
sl.ReportError(Name, name, name, "whitelisted", "")
}
}