8 // validator houses a set of rule needed for validation of a
12 // rule interface allows for more flexible rules and just simply
13 // checks whether or not a value adheres to that rule
15 IsValid(value string) bool
18 // IsValid will iterate through all rules and see if any rules
19 // apply to the value and supports nested rules
20 func (r rules) IsValid(value string) bool {
21 for _, rule := range r {
22 if rule.IsValid(value) {
29 // mapRule generic rule for maps
30 type mapRule map[string]struct{}
32 // IsValid for the map rule satisfies whether it exists in the map
33 func (m mapRule) IsValid(value string) bool {
38 // whitelist is a generic rule for whitelisting
39 type whitelist struct {
43 // IsValid for whitelist checks if the value is within the whitelist
44 func (w whitelist) IsValid(value string) bool {
45 return w.rule.IsValid(value)
48 // blacklist is a generic rule for blacklisting
49 type blacklist struct {
53 // IsValid for whitelist checks if the value is within the whitelist
54 func (b blacklist) IsValid(value string) bool {
55 return !b.rule.IsValid(value)
58 type patterns []string
60 // IsValid for patterns checks each pattern and returns if a match has
62 func (p patterns) IsValid(value string) bool {
63 for _, pattern := range p {
64 if strings.HasPrefix(http.CanonicalHeaderKey(value), pattern) {
71 // inclusiveRules rules allow for rules to depend on one another
72 type inclusiveRules []rule
74 // IsValid will return true if all rules are true
75 func (r inclusiveRules) IsValid(value string) bool {
76 for _, rule := range r {
77 if !rule.IsValid(value) {