diff options
author | Wim <wim@42.be> | 2022-09-05 21:00:54 +0200 |
---|---|---|
committer | GitHub <noreply@github.com> | 2022-09-05 21:00:54 +0200 |
commit | fda05f22629156cc2eae130b501ebced2261ab42 (patch) | |
tree | b9761fb5202ab476b11c1136a5bea69df0dd0f83 /vendor/github.com/gomarkdown/markdown/parser/parser.go | |
parent | 7abf1a5884bfba9ac19df26495924d86613874f3 (diff) | |
download | matterbridge-msglm-fda05f22629156cc2eae130b501ebced2261ab42.tar.gz matterbridge-msglm-fda05f22629156cc2eae130b501ebced2261ab42.tar.bz2 matterbridge-msglm-fda05f22629156cc2eae130b501ebced2261ab42.zip |
Update dependencies and fix whatsmeow API changes (#1887)
* Update dependencies
* Fix whatsmau API changes
Diffstat (limited to 'vendor/github.com/gomarkdown/markdown/parser/parser.go')
-rw-r--r-- | vendor/github.com/gomarkdown/markdown/parser/parser.go | 95 |
1 files changed, 70 insertions, 25 deletions
diff --git a/vendor/github.com/gomarkdown/markdown/parser/parser.go b/vendor/github.com/gomarkdown/markdown/parser/parser.go index 19d1f70b..07444cd8 100644 --- a/vendor/github.com/gomarkdown/markdown/parser/parser.go +++ b/vendor/github.com/gomarkdown/markdown/parser/parser.go @@ -84,7 +84,9 @@ type Parser struct { // the bottom will be used to fill in the link details. ReferenceOverride ReferenceOverrideFunc - // TODO: documentation + // IsSafeURLOverride allows overriding the default URL matcher. URL is + // safe if the overriding function returns true. Can be used to extend + // the default list of safe URLs. IsSafeURLOverride func(url []byte) bool Opts Options @@ -390,35 +392,35 @@ func (p *Parser) parseRefsToAST() { // // Consider this markdown with reference-style links: // -// [link][ref] +// [link][ref] // -// [ref]: /url/ "tooltip title" +// [ref]: /url/ "tooltip title" // // It will be ultimately converted to this HTML: // -// <p><a href=\"/url/\" title=\"title\">link</a></p> +// <p><a href=\"/url/\" title=\"title\">link</a></p> // // And a reference structure will be populated as follows: // -// p.refs["ref"] = &reference{ -// link: "/url/", -// title: "tooltip title", -// } +// p.refs["ref"] = &reference{ +// link: "/url/", +// title: "tooltip title", +// } // // Alternatively, reference can contain information about a footnote. Consider // this markdown: // -// Text needing a footnote.[^a] +// Text needing a footnote.[^a] // -// [^a]: This is the note +// [^a]: This is the note // // A reference structure will be populated as follows: // -// p.refs["a"] = &reference{ -// link: "a", -// title: "This is the note", -// noteID: <some positive int>, -// } +// p.refs["a"] = &reference{ +// link: "a", +// title: "This is the note", +// noteID: <some positive int>, +// } // // TODO: As you can see, it begs for splitting into two dedicated structures // for refs and for footnotes. @@ -693,8 +695,8 @@ gatherLines: return } -// isPunctuation returns true if c is a punctuation symbol. -func isPunctuation(c byte) bool { +// IsPunctuation returns true if c is a punctuation symbol. +func IsPunctuation(c byte) bool { for _, r := range []byte("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~") { if c == r { return true @@ -703,20 +705,63 @@ func isPunctuation(c byte) bool { return false } -// isSpace returns true if c is a white-space charactr -func isSpace(c byte) bool { +// IsSpace returns true if c is a white-space charactr +func IsSpace(c byte) bool { return c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '\f' || c == '\v' } -// isLetter returns true if c is ascii letter -func isLetter(c byte) bool { +// IsLetter returns true if c is ascii letter +func IsLetter(c byte) bool { return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') } -// isAlnum returns true if c is a digit or letter +// IsAlnum returns true if c is a digit or letter // TODO: check when this is looking for ASCII alnum and when it should use unicode -func isAlnum(c byte) bool { - return (c >= '0' && c <= '9') || isLetter(c) +func IsAlnum(c byte) bool { + return (c >= '0' && c <= '9') || IsLetter(c) +} + +var URIs = [][]byte{ + []byte("http://"), + []byte("https://"), + []byte("ftp://"), + []byte("mailto:"), +} + +var Paths = [][]byte{ + []byte("/"), + []byte("./"), + []byte("../"), +} + +// IsSafeURL returns true if url starts with one of the valid schemes or is a relative path. +func IsSafeURL(url []byte) bool { + nLink := len(url) + for _, path := range Paths { + nPath := len(path) + linkPrefix := url[:nPath] + if nLink >= nPath && bytes.Equal(linkPrefix, path) { + if nLink == nPath { + return true + } else if IsAlnum(url[nPath]) { + return true + } + } + } + + for _, prefix := range URIs { + // TODO: handle unicode here + // case-insensitive prefix test + nPrefix := len(prefix) + if nLink > nPrefix { + linkPrefix := bytes.ToLower(url[:nPrefix]) + if bytes.Equal(linkPrefix, prefix) && IsAlnum(url[nPrefix]) { + return true + } + } + } + + return false } // TODO: this is not used @@ -809,7 +854,7 @@ func slugify(in []byte) []byte { sym := false for _, ch := range in { - if isAlnum(ch) { + if IsAlnum(ch) { sym = false out = append(out, ch) } else if sym { |