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https://github.com/thegeeklab/drone-s3-sync.git
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83 lines
1.8 KiB
Go
83 lines
1.8 KiB
Go
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package v4
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import (
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"net/http"
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"strings"
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)
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// validator houses a set of rule needed for validation of a
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// string value
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type rules []rule
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// rule interface allows for more flexible rules and just simply
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// checks whether or not a value adheres to that rule
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type rule interface {
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IsValid(value string) bool
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}
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// IsValid will iterate through all rules and see if any rules
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// apply to the value and supports nested rules
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func (r rules) IsValid(value string) bool {
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for _, rule := range r {
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if rule.IsValid(value) {
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return true
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}
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}
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return false
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}
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// mapRule generic rule for maps
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type mapRule map[string]struct{}
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// IsValid for the map rule satisfies whether it exists in the map
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func (m mapRule) IsValid(value string) bool {
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_, ok := m[value]
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return ok
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}
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// whitelist is a generic rule for whitelisting
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type whitelist struct {
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rule
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}
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// IsValid for whitelist checks if the value is within the whitelist
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func (w whitelist) IsValid(value string) bool {
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return w.rule.IsValid(value)
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}
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// blacklist is a generic rule for blacklisting
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type blacklist struct {
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rule
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}
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// IsValid for whitelist checks if the value is within the whitelist
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func (b blacklist) IsValid(value string) bool {
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return !b.rule.IsValid(value)
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}
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type patterns []string
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// IsValid for patterns checks each pattern and returns if a match has
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// been found
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func (p patterns) IsValid(value string) bool {
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for _, pattern := range p {
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if strings.HasPrefix(http.CanonicalHeaderKey(value), pattern) {
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return true
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}
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}
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return false
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}
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// inclusiveRules rules allow for rules to depend on one another
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type inclusiveRules []rule
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// IsValid will return true if all rules are true
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func (r inclusiveRules) IsValid(value string) bool {
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for _, rule := range r {
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if !rule.IsValid(value) {
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return false
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}
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}
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return true
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}
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