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Fix deny encoded characters

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Co-authored-by: Kevin Pollet <pollet.kevin@gmail.com>
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Romain 2025-12-23 16:00:05 +01:00 • committed by GitHub
parent 8ebab1b243
commit 90ce858347
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GPG key ID: B5690EEEBB952194
21 changed files with 427 additions and 300 deletions
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66
pkg/config/dynamic/http_config.go
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@ -24,8 +24,9 @@ type HTTPConfiguration struct {
// Model is a set of default router's values.
type Model struct {
Middlewares []string `json:"middlewares,omitempty" toml:"middlewares,omitempty" yaml:"middlewares,omitempty" export:"true"`
TLS *RouterTLSConfig `json:"tls,omitempty" toml:"tls,omitempty" yaml:"tls,omitempty" label:"allowEmpty" file:"allowEmpty" kv:"allowEmpty" export:"true"`
Middlewares []string `json:"middlewares,omitempty" toml:"middlewares,omitempty" yaml:"middlewares,omitempty" export:"true"`
TLS *RouterTLSConfig `json:"tls,omitempty" toml:"tls,omitempty" yaml:"tls,omitempty" label:"allowEmpty" file:"allowEmpty" kv:"allowEmpty" export:"true"`
DeniedEncodedPathCharacters *RouterDeniedEncodedPathCharacters `json:"-" toml:"-" yaml:"-" label:"-" file:"-" kv:"-" export:"true"`
}
// +k8s:deepcopy-gen=true
@ -42,13 +43,60 @@ type Service struct {
// Router holds the router configuration.
type Router struct {
EntryPoints []string `json:"entryPoints,omitempty" toml:"entryPoints,omitempty" yaml:"entryPoints,omitempty" export:"true"`
Middlewares []string `json:"middlewares,omitempty" toml:"middlewares,omitempty" yaml:"middlewares,omitempty" export:"true"`
Service string `json:"service,omitempty" toml:"service,omitempty" yaml:"service,omitempty" export:"true"`
Rule string `json:"rule,omitempty" toml:"rule,omitempty" yaml:"rule,omitempty"`
Priority int `json:"priority,omitempty" toml:"priority,omitempty,omitzero" yaml:"priority,omitempty" export:"true"`
TLS *RouterTLSConfig `json:"tls,omitempty" toml:"tls,omitempty" yaml:"tls,omitempty" label:"allowEmpty" file:"allowEmpty" kv:"allowEmpty" export:"true"`
DefaultRule bool `json:"-" toml:"-" yaml:"-" label:"-" file:"-"`
EntryPoints []string `json:"entryPoints,omitempty" toml:"entryPoints,omitempty" yaml:"entryPoints,omitempty" export:"true"`
Middlewares []string `json:"middlewares,omitempty" toml:"middlewares,omitempty" yaml:"middlewares,omitempty" export:"true"`
Service string `json:"service,omitempty" toml:"service,omitempty" yaml:"service,omitempty" export:"true"`
Rule string `json:"rule,omitempty" toml:"rule,omitempty" yaml:"rule,omitempty"`
Priority int `json:"priority,omitempty" toml:"priority,omitempty,omitzero" yaml:"priority,omitempty" export:"true"`
TLS *RouterTLSConfig `json:"tls,omitempty" toml:"tls,omitempty" yaml:"tls,omitempty" label:"allowEmpty" file:"allowEmpty" kv:"allowEmpty" export:"true"`
DefaultRule bool `json:"-" toml:"-" yaml:"-" label:"-" file:"-"`
DeniedEncodedPathCharacters RouterDeniedEncodedPathCharacters `json:"-" toml:"-" yaml:"-" label:"-" file:"-"`
}
// +k8s:deepcopy-gen=true
// RouterDeniedEncodedPathCharacters configures which encoded characters are allowed in the request path.
type RouterDeniedEncodedPathCharacters struct {
AllowEncodedSlash bool `description:"Defines whether requests with encoded slash characters in the path are allowed." json:"allowEncodedSlash,omitempty" toml:"allowEncodedSlash,omitempty" yaml:"allowEncodedSlash,omitempty" export:"true"`
AllowEncodedBackSlash bool `description:"Defines whether requests with encoded back slash characters in the path are allowed." json:"allowEncodedBackSlash,omitempty" toml:"allowEncodedBackSlash,omitempty" yaml:"allowEncodedBackSlash,omitempty" export:"true"`
AllowEncodedNullCharacter bool `description:"Defines whether requests with encoded null characters in the path are allowed." json:"allowEncodedNullCharacter,omitempty" toml:"allowEncodedNullCharacter,omitempty" yaml:"allowEncodedNullCharacter,omitempty" export:"true"`
AllowEncodedSemicolon bool `description:"Defines whether requests with encoded semicolon characters in the path are allowed." json:"allowEncodedSemicolon,omitempty" toml:"allowEncodedSemicolon,omitempty" yaml:"allowEncodedSemicolon,omitempty" export:"true"`
AllowEncodedPercent bool `description:"Defines whether requests with encoded percent characters in the path are allowed." json:"allowEncodedPercent,omitempty" toml:"allowEncodedPercent,omitempty" yaml:"allowEncodedPercent,omitempty" export:"true"`
AllowEncodedQuestionMark bool `description:"Defines whether requests with encoded question mark characters in the path are allowed." json:"allowEncodedQuestionMark,omitempty" toml:"allowEncodedQuestionMark,omitempty" yaml:"allowEncodedQuestionMark,omitempty" export:"true"`
AllowEncodedHash bool `description:"Defines whether requests with encoded hash characters in the path are allowed." json:"allowEncodedHash,omitempty" toml:"allowEncodedHash,omitempty" yaml:"allowEncodedHash,omitempty" export:"true"`
}
// Map returns a map of unallowed encoded characters.
func (r *RouterDeniedEncodedPathCharacters) Map() map[string]struct{} {
characters := make(map[string]struct{})
if !r.AllowEncodedSlash {
characters["%2F"] = struct{}{}
characters["%2f"] = struct{}{}
}
if !r.AllowEncodedBackSlash {
characters["%5C"] = struct{}{}
characters["%5c"] = struct{}{}
}
if !r.AllowEncodedNullCharacter {
characters["%00"] = struct{}{}
}
if !r.AllowEncodedSemicolon {
characters["%3B"] = struct{}{}
characters["%3b"] = struct{}{}
}
if !r.AllowEncodedPercent {
characters["%25"] = struct{}{}
}
if !r.AllowEncodedQuestionMark {
characters["%3F"] = struct{}{}
characters["%3f"] = struct{}{}
}
if !r.AllowEncodedHash {
characters["%23"] = struct{}{}
}
return characters
}
// +k8s:deepcopy-gen=true