From 20f6c05ec50739d31f4dbe9fde0d223f2c43f6e8 Mon Sep 17 00:00:00 2001 From: Wim Date: Sat, 16 Oct 2021 23:11:32 +0200 Subject: Update vendor --- vendor/golang.org/x/net/idna/idna9.0.0.go | 93 +++++++++++++++++++++---------- 1 file changed, 64 insertions(+), 29 deletions(-) (limited to 'vendor/golang.org/x/net/idna/idna9.0.0.go') diff --git a/vendor/golang.org/x/net/idna/idna9.0.0.go b/vendor/golang.org/x/net/idna/idna9.0.0.go index 7c745637..55f718f1 100644 --- a/vendor/golang.org/x/net/idna/idna9.0.0.go +++ b/vendor/golang.org/x/net/idna/idna9.0.0.go @@ -66,15 +66,14 @@ func Transitional(transitional bool) Option { // VerifyDNSLength sets whether a Profile should fail if any of the IDN parts // are longer than allowed by the RFC. +// +// This option corresponds to the VerifyDnsLength flag in UTS #46. func VerifyDNSLength(verify bool) Option { return func(o *options) { o.verifyDNSLength = verify } } // RemoveLeadingDots removes leading label separators. Leading runes that map to // dots, such as U+3002 IDEOGRAPHIC FULL STOP, are removed as well. -// -// This is the behavior suggested by the UTS #46 and is adopted by some -// browsers. func RemoveLeadingDots(remove bool) Option { return func(o *options) { o.removeLeadingDots = remove } } @@ -82,6 +81,8 @@ func RemoveLeadingDots(remove bool) Option { // ValidateLabels sets whether to check the mandatory label validation criteria // as defined in Section 5.4 of RFC 5891. This includes testing for correct use // of hyphens ('-'), normalization, validity of runes, and the context rules. +// In particular, ValidateLabels also sets the CheckHyphens and CheckJoiners flags +// in UTS #46. func ValidateLabels(enable bool) Option { return func(o *options) { // Don't override existing mappings, but set one that at least checks @@ -90,25 +91,48 @@ func ValidateLabels(enable bool) Option { o.mapping = normalize } o.trie = trie - o.validateLabels = enable - o.fromPuny = validateFromPunycode + o.checkJoiners = enable + o.checkHyphens = enable + if enable { + o.fromPuny = validateFromPunycode + } else { + o.fromPuny = nil + } + } +} + +// CheckHyphens sets whether to check for correct use of hyphens ('-') in +// labels. Most web browsers do not have this option set, since labels such as +// "r3---sn-apo3qvuoxuxbt-j5pe" are in common use. +// +// This option corresponds to the CheckHyphens flag in UTS #46. +func CheckHyphens(enable bool) Option { + return func(o *options) { o.checkHyphens = enable } +} + +// CheckJoiners sets whether to check the ContextJ rules as defined in Appendix +// A of RFC 5892, concerning the use of joiner runes. +// +// This option corresponds to the CheckJoiners flag in UTS #46. +func CheckJoiners(enable bool) Option { + return func(o *options) { + o.trie = trie + o.checkJoiners = enable } } // StrictDomainName limits the set of permissable ASCII characters to those // allowed in domain names as defined in RFC 1034 (A-Z, a-z, 0-9 and the -// hyphen). This is set by default for MapForLookup and ValidateForRegistration. +// hyphen). This is set by default for MapForLookup and ValidateForRegistration, +// but is only useful if ValidateLabels is set. // // This option is useful, for instance, for browsers that allow characters // outside this range, for example a '_' (U+005F LOW LINE). See -// http://www.rfc-editor.org/std/std3.txt for more details This option -// corresponds to the UseSTD3ASCIIRules option in UTS #46. +// http://www.rfc-editor.org/std/std3.txt for more details. +// +// This option corresponds to the UseSTD3ASCIIRules flag in UTS #46. func StrictDomainName(use bool) Option { - return func(o *options) { - o.trie = trie - o.useSTD3Rules = use - o.fromPuny = validateFromPunycode - } + return func(o *options) { o.useSTD3Rules = use } } // NOTE: the following options pull in tables. The tables should not be linked @@ -116,6 +140,8 @@ func StrictDomainName(use bool) Option { // BidiRule enables the Bidi rule as defined in RFC 5893. Any application // that relies on proper validation of labels should include this rule. +// +// This option corresponds to the CheckBidi flag in UTS #46. func BidiRule() Option { return func(o *options) { o.bidirule = bidirule.ValidString } } @@ -152,7 +178,8 @@ func MapForLookup() Option { type options struct { transitional bool useSTD3Rules bool - validateLabels bool + checkHyphens bool + checkJoiners bool verifyDNSLength bool removeLeadingDots bool @@ -225,8 +252,11 @@ func (p *Profile) String() string { if p.useSTD3Rules { s += ":UseSTD3Rules" } - if p.validateLabels { - s += ":ValidateLabels" + if p.checkHyphens { + s += ":CheckHyphens" + } + if p.checkJoiners { + s += ":CheckJoiners" } if p.verifyDNSLength { s += ":VerifyDNSLength" @@ -255,9 +285,10 @@ var ( punycode = &Profile{} lookup = &Profile{options{ transitional: true, - useSTD3Rules: true, - validateLabels: true, removeLeadingDots: true, + useSTD3Rules: true, + checkHyphens: true, + checkJoiners: true, trie: trie, fromPuny: validateFromPunycode, mapping: validateAndMap, @@ -265,8 +296,9 @@ var ( }} display = &Profile{options{ useSTD3Rules: true, - validateLabels: true, removeLeadingDots: true, + checkHyphens: true, + checkJoiners: true, trie: trie, fromPuny: validateFromPunycode, mapping: validateAndMap, @@ -274,8 +306,9 @@ var ( }} registration = &Profile{options{ useSTD3Rules: true, - validateLabels: true, verifyDNSLength: true, + checkHyphens: true, + checkJoiners: true, trie: trie, fromPuny: validateFromPunycode, mapping: validateRegistration, @@ -339,7 +372,7 @@ func (p *Profile) process(s string, toASCII bool) (string, error) { continue } labels.set(u) - if err == nil && p.validateLabels { + if err == nil && p.fromPuny != nil { err = p.fromPuny(p, u) } if err == nil { @@ -629,16 +662,18 @@ func (p *Profile) validateLabel(s string) error { if p.bidirule != nil && !p.bidirule(s) { return &labelError{s, "B"} } - if !p.validateLabels { - return nil - } - trie := p.trie // p.validateLabels is only set if trie is set. - if len(s) > 4 && s[2] == '-' && s[3] == '-' { - return &labelError{s, "V2"} + if p.checkHyphens { + if len(s) > 4 && s[2] == '-' && s[3] == '-' { + return &labelError{s, "V2"} + } + if s[0] == '-' || s[len(s)-1] == '-' { + return &labelError{s, "V3"} + } } - if s[0] == '-' || s[len(s)-1] == '-' { - return &labelError{s, "V3"} + if !p.checkJoiners { + return nil } + trie := p.trie // p.checkJoiners is only set if trie is set. // TODO: merge the use of this in the trie. v, sz := trie.lookupString(s) x := info(v) -- cgit v1.2.3