csp

package
v0.2.4 Latest Latest
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 Go to latest Published: Jul 4, 2023 License: Apache-2.0 Imports: 17 Imported by: 1

Documentation

Index

Constants

View Source 
const (
	PolicyTag           beContext.RequestKey = "content-security-policy"
	ReportNonceTag      beContext.RequestKey = "content-security-policy-report-nonce"
	RequestNonceDataTag beContext.RequestKey = "content-security-policy-request-nonce-data"
)
View Source 
const (
	RequestDefaultSrcNonceTag     string = "default-src"
	RequestConnectSrcNonceTag     string = "connect-src"
	RequestFontSrcNonceTag        string = "font-src"
	RequestFrameSrcNonceTag       string = "frame-src"
	RequestImgSrcNonceTag         string = "img-src"
	RequestManifestSrcNonceTag    string = "manifest-src"
	RequestMediaSrcNonceTag       string = "media-src"
	RequestObjectSrcNonceTag      string = "object-src"
	RequestPrefetchSrcNonceTag    string = "prefetch-src"
	RequestScriptSrcNonceTag      string = "script-src"
	RequestScriptSrcElemNonceTag  string = "script-src-elem"
	RequestScriptSrcAttrNonceTag  string = "script-src-attr"
	RequestStyleSrcNonceTag       string = "style-src"
	RequestStyleSrcElemNonceTag   string = "style-src-elem"
	RequestStyleSrcAttrNonceTag   string = "style-src-attr"
	RequestWorkerSrcNonceTag      string = "worker-src"
	RequestBaseUriNonceTag        string = "base-uri"
	RequestFormActionNonceTag     string = "form-action"
	RequestFrameAncestorsNonceTag string = "frame-ancestors"
)
View Source 
const HashSourceType string = "hash-source"
View Source 
const HostSourceType string = "host-source"
View Source 
const KeywordSourceType string = "keyword-source"
View Source 
const NonceSourceType string = "nonce-source"
View Source 
const SchemeSourceType string = "scheme-source"

Variables

View Source 
var (
	DefaultReportPathPrefix = "/_/csp-violation"
)

Functions

This section is empty.

Types

type ConfigError 

type ConfigError []string

func (ConfigError) Error 

func (c ConfigError) Error() (msg string)

type ContentSecurityPolicyConfig 

type ContentSecurityPolicyConfig struct {
	GenericSourceDirective Sources
	DefaultSrc             Sources
	ConnectSrc             Sources
	FontSrc                Sources
	FrameSrc               Sources
	ImgSrc                 Sources
	ManifestSrc            Sources
	MediaSrc               Sources
	ObjectSrc              Sources
	PrefetchSrc            Sources
	ScriptSrc              Sources
	ScriptSrcElem          Sources
	ScriptSrcAttr          Sources
	StyleSrc               Sources
	StyleSrcElem           Sources
	StyleSrcAttr           Sources
	WorkerSrc              Sources
	BaseUri                Sources
	FormAction             Sources
	FrameAncestors         Sources
}

func ParseContentSecurityPolicyConfig 

func ParseContentSecurityPolicyConfig(ctx map[string]interface{}) (cspc ContentSecurityPolicyConfig, err error)

func (ContentSecurityPolicyConfig) Apply 

func (c ContentSecurityPolicyConfig) Apply(policy Policy) (modified Policy)

type Directive 

type Directive interface {
	DirectiveType() string
	Value() string
}

func NewBaseUri 

func NewBaseUri(sources ...Source) Directive

func NewConnectSrc 

func NewConnectSrc(sources ...Source) Directive

func NewDefaultSrc 

func NewDefaultSrc(sources ...Source) Directive

func NewFontSrc 

func NewFontSrc(sources ...Source) Directive

func NewFormAction 

func NewFormAction(sources ...Source) Directive

func NewFrameAncestors 

func NewFrameAncestors(sources ...Source) Directive

func NewFrameSrc 

func NewFrameSrc(sources ...Source) Directive

func NewGenericSourceDirective 

func NewGenericSourceDirective(name string, sources ...Source) (d Directive)

func NewImgSrc 

func NewImgSrc(sources ...Source) Directive

func NewManifestSrc 

func NewManifestSrc(sources ...Source) Directive

func NewMediaSrc 

func NewMediaSrc(sources ...Source) Directive

func NewObjectSrc 

func NewObjectSrc(sources ...Source) Directive

func NewPrefetchSrc 

func NewPrefetchSrc(sources ...Source) Directive

func NewReportTo 

func NewReportTo(groupName string) Directive

func NewReportUri 

func NewReportUri(uri string) Directive

func NewSandbox 

func NewSandbox(values ...SandboxValue) Directive

func NewScriptSrc 

func NewScriptSrc(sources ...Source) Directive

func NewScriptSrcAttr 

func NewScriptSrcAttr(sources ...Source) Directive

func NewScriptSrcElem 

func NewScriptSrcElem(sources ...Source) Directive

func NewStyleSrc 

func NewStyleSrc(sources ...Source) Directive

func NewStyleSrcAttr 

func NewStyleSrcAttr(sources ...Source) Directive

func NewStyleSrcElem 

func NewStyleSrcElem(sources ...Source) Directive

func NewUpgradeInsecureRequests 

func NewUpgradeInsecureRequests() Directive

func NewWorkerSrc 

func NewWorkerSrc(sources ...Source) Directive

type HashSource 

type HashSource struct {
	// contains filtered or unexported fields
}

func NewHashSource 

func NewHashSource(algo, hash string) (value HashSource)

func ParseHashSource 

func ParseHashSource(input string) (s HashSource, ok bool)

func (HashSource) SourceType 

func (s HashSource) SourceType() string

func (HashSource) Value 

func (s HashSource) Value() (value string)

type HostSource 

type HostSource struct {
	// contains filtered or unexported fields
}

func NewHostSource 

func NewHostSource(value string) (v HostSource)

func ParseHostSource 

func ParseHostSource(input string) (s HostSource, ok bool)

func (HostSource) SourceType 

func (s HostSource) SourceType() string

func (HostSource) Value 

func (s HostSource) Value() (value string)

type KeywordSource 

type KeywordSource string
const (
	None           KeywordSource = `none`
	Self           KeywordSource = `self`
	UnsafeEval     KeywordSource = `unsafe-eval`
	UnsafeHashes   KeywordSource = `unsafe-hashes`
	UnsafeInline   KeywordSource = `unsafe-inline`
	RequireSample  KeywordSource = `require-sample`
	StrictDynamic  KeywordSource = `strict-dynamic`
	WasmUnsafeEval KeywordSource = `wasm-unsafe-eval`
)

func ParseKeywordSource 

func ParseKeywordSource(input string) (s KeywordSource, ok bool)

func (KeywordSource) SourceType 

func (s KeywordSource) SourceType() string

func (KeywordSource) Value 

func (s KeywordSource) Value() (value string)

type ModifyPolicyFn 

type ModifyPolicyFn = func(policy Policy, r *http.Request) (modified Policy)

type NonceSource 

type NonceSource string

func NewNonceSource 

func NewNonceSource(nonce string) (value NonceSource)

func ParseNonceSource 

func ParseNonceSource(input string) (s NonceSource, ok bool)

func (NonceSource) SourceType 

func (s NonceSource) SourceType() string

func (NonceSource) Value 

func (s NonceSource) Value() (value string)

type PageContextContentSecurity 

type PageContextContentSecurity struct {
	Policy Policy
	Nonces beContext.Context
}

type Policy 

type Policy interface {
	// Set overwrites any existing version of the same directives (chainable)
	Set(d Directive) Policy
	// Add appends the given directive (chainable)
	Add(d Directive) Policy
	// Value returns a string suitable for use in HTTP header responses
	Value() string
	// Find returns all directive instances of named type
	Find(name string) (found []Directive)
	// None returns true if Empty or there is only the None source present in the named directive
	None(name string) (none bool)
	// Empty returns true if there are no directives present
	Empty() (empty bool)
	// Unsafe returns true if any "unsafe" sources are present in the named directive
	Unsafe(name string) (unsafe bool)
	// Collapse reduces directives of the same type and places default-src first, returns a new Policy
	Collapse() Policy
	// Directives returns the list of directives present
	Directives() (directives []Directive)
}

func DefaultContentSecurityPolicy 

func DefaultContentSecurityPolicy() Policy

func NewPolicy 

func NewPolicy(directives ...Directive) (p Policy)

func StrictContentSecurityPolicy 

func StrictContentSecurityPolicy() Policy

type PolicyHandler 

type PolicyHandler struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

func NewPolicyHandler 

func NewPolicyHandler() (h *PolicyHandler)

func (*PolicyHandler) ApplyHeaders 

func (h *PolicyHandler) ApplyHeaders(w http.ResponseWriter, r *http.Request)

func (*PolicyHandler) FinalizeRequest 

func (h *PolicyHandler) FinalizeRequest(w http.ResponseWriter, r *http.Request)

func (*PolicyHandler) GetRequestNonce 

func (h *PolicyHandler) GetRequestNonce(tag string, r *http.Request) (nonce string, modified *http.Request)

func (*PolicyHandler) GetRequestNonceData 

func (h *PolicyHandler) GetRequestNonceData(r *http.Request) (data *RequestNonceData, modified *http.Request)

func (*PolicyHandler) GetRequestPolicy 

func (h *PolicyHandler) GetRequestPolicy(r *http.Request) (policy Policy)

func (*PolicyHandler) ModifyPolicyMiddleware 

func (h *PolicyHandler) ModifyPolicyMiddleware(fn ModifyPolicyFn) (mw func(next http.Handler) http.Handler)

func (*PolicyHandler) NewReportNonce 

func (h *PolicyHandler) NewReportNonce() (nonce string)

func (*PolicyHandler) PreparePageContext 

func (h *PolicyHandler) PreparePageContext(config ContentSecurityPolicyConfig, ctx beContext.Context, r *http.Request) (pccs *PageContextContentSecurity, modified *http.Request)

func (*PolicyHandler) PrepareRequestMiddleware 

func (h *PolicyHandler) PrepareRequestMiddleware(next http.Handler) http.Handler

func (*PolicyHandler) PruneReportNonces 

func (h *PolicyHandler) PruneReportNonces()

func (*PolicyHandler) SetRequestPolicy 

func (h *PolicyHandler) SetRequestPolicy(r *http.Request, policy Policy) (modified *http.Request)

func (*PolicyHandler) ValidateReportNonce 

func (h *PolicyHandler) ValidateReportNonce(nonce string) (valid bool)

type RequestNonceData 

type RequestNonceData map[string]string

type SandboxValue 

type SandboxValue string
const (
	AllowDownloads                      SandboxValue = "allow-downloads"
	AllowDownloadsWithoutUserActivation SandboxValue = "allow-downloads-without-user-activation"
	AllowForms                          SandboxValue = "allow-forms"
	AllowModals                         SandboxValue = "allow-modals"
	AllowOrientationLock                SandboxValue = "allow-orientation-lock"
	AllowPointerLock                    SandboxValue = "allow-pointer-lock"
	AllowPopups                         SandboxValue = "allow-popups"
	AllowPopupsToEscapeSandbox          SandboxValue = "allow-popups-to-escape-sandbox"
	AllowPresentation                   SandboxValue = "allow-presentation"
	AllowSameOrigin                     SandboxValue = "allow-same-origin"
	AllowScripts                        SandboxValue = "allow-scripts"
	AllowStorageAccessByUserActivation  SandboxValue = "allow-storage-access-by-user-activation"
	AllowTopNavigation                  SandboxValue = "allow-top-navigation"
	AllowTopNavigationByUserActivation  SandboxValue = "allow-top-navigation-by-user-activation"
	AllowTopNavigationToCustomProtocols SandboxValue = "allow-top-navigation-to-custom-protocols"
)

type SchemeSource 

type SchemeSource string

func NewSchemeSource 

func NewSchemeSource(value string) (v SchemeSource)

func ParseSchemeSource 

func ParseSchemeSource(input string) (s SchemeSource, ok bool)

func (SchemeSource) SourceType 

func (s SchemeSource) SourceType() string

func (SchemeSource) Value 

func (s SchemeSource) Value() (value string)

type Source 

type Source interface {
	SourceType() string
	Value() string
}

func ParseSource 

func ParseSource(input string) (s Source, ok bool)

type SourceDirective 

type SourceDirective interface {
	Directive
	Sources() (sources []Source)
	Append(sources ...Source)
}

type Sources 

type Sources []Source

func (Sources) Append 

func (s Sources) Append(sources ...Source) (modified Sources)

func (Sources) Collapse 

func (s Sources) Collapse() (collapsed Sources)

func (Sources) FilterAllowedKeywords 

func (s Sources) FilterAllowedKeywords(allowed ...KeywordSource) (filtered Sources)

func (Sources) FilterAllowedTypes 

func (s Sources) FilterAllowedTypes(allowed ...string) (filtered Sources)

func (Sources) FilterUnsafeInline 

func (s Sources) FilterUnsafeInline() (filtered Sources)

func (Sources) Sort 

func (s Sources) Sort() (sorted Sources)

Source Files

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