1 files changed, 0 insertions, 253 deletions
diff --git a/vendor/github.com/mattermost/mattermost-server/utils/markdown/autolink.go b/vendor/github.com/mattermost/mattermost-server/utils/markdown/autolink.go
deleted file mode 100644
index 7f7d1117..00000000
--- a/vendor/github.com/mattermost/mattermost-server/utils/markdown/autolink.go
+++ /dev/null
@@ -1,253 +0,0 @@
-// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
-// See License.txt for license information.
-
-package markdown
-
-import (
-	"regexp"
-	"strings"
-	"unicode"
-	"unicode/utf8"
-)
-
-// Based off of extensions/autolink.c from https://github.com/github/cmark
-
-var (
-	DefaultUrlSchemes = []string{"http", "https", "ftp", "mailto", "tel"}
-)
-
-// Given a string with a w at the given position, tries to parse and return a range containing a www link.
-// if one exists. If the text at the given position isn't a link, returns an empty string. Equivalent to
-// www_match from the reference code.
-func parseWWWAutolink(data string, position int) (Range, bool) {
-	// Check that this isn't part of another word
-	if position > 1 {
-		prevChar := data[position-1]
-
-		if !isWhitespaceByte(prevChar) && !isAllowedBeforeWWWLink(prevChar) {
-			return Range{}, false
-		}
-	}
-
-	// Check that this starts with www
-	if len(data)-position < 4 || !regexp.MustCompile(`^www\d{0,3}\.`).MatchString(data[position:]) {
-		return Range{}, false
-	}
-
-	end := checkDomain(data[position:], false)
-	if end == 0 {
-		return Range{}, false
-	}
-
-	end += position
-
-	// Grab all text until the end of the string or the next whitespace character
-	for end < len(data) && !isWhitespaceByte(data[end]) {
-		end += 1
-	}
-
-	// Trim trailing punctuation
-	end = trimTrailingCharactersFromLink(data, position, end)
-	if position == end {
-		return Range{}, false
-	}
-
-	return Range{position, end}, true
-}
-
-func isAllowedBeforeWWWLink(c byte) bool {
-	switch c {
-	case '*', '_', '~', ')':
-		return true
-	default:
-		return false
-	}
-}
-
-// Given a string with a : at the given position, tried to parse and return a range containing a URL scheme
-// if one exists. If the text around the given position isn't a link, returns an empty string. Equivalent to
-// url_match from the reference code.
-func parseURLAutolink(data string, position int) (Range, bool) {
-	// Check that a :// exists. This doesn't match the clients that treat the slashes as optional.
-	if len(data)-position < 4 || data[position+1] != '/' || data[position+2] != '/' {
-		return Range{}, false
-	}
-
-	start := position - 1
-	for start > 0 && isAlphanumericByte(data[start-1]) {
-		start -= 1
-	}
-
-	// Ensure that the URL scheme is allowed and that at least one character after the scheme is valid.
-	scheme := data[start:position]
-	if !isSchemeAllowed(scheme) || !isValidHostCharacter(data[position+3:]) {
-		return Range{}, false
-	}
-
-	end := checkDomain(data[position+3:], true)
-	if end == 0 {
-		return Range{}, false
-	}
-
-	end += position
-
-	// Grab all text until the end of the string or the next whitespace character
-	for end < len(data) && !isWhitespaceByte(data[end]) {
-		end += 1
-	}
-
-	// Trim trailing punctuation
-	end = trimTrailingCharactersFromLink(data, start, end)
-	if start == end {
-		return Range{}, false
-	}
-
-	return Range{start, end}, true
-}
-
-func isSchemeAllowed(scheme string) bool {
-	// Note that this doesn't support the custom URL schemes implemented by the client
-	for _, allowed := range DefaultUrlSchemes {
-		if strings.EqualFold(allowed, scheme) {
-			return true
-		}
-	}
-
-	return false
-}
-
-// Given a string starting with a URL, returns the number of valid characters that make up the URL's domain.
-// Returns 0 if the string doesn't start with a domain name. allowShort determines whether or not the domain
-// needs to contain a period to be considered valid. Equivalent to check_domain from the reference code.
-func checkDomain(data string, allowShort bool) int {
-	foundUnderscore := false
-	foundPeriod := false
-
-	i := 1
-	for ; i < len(data)-1; i++ {
-		if data[i] == '_' {
-			foundUnderscore = true
-			break
-		} else if data[i] == '.' {
-			foundPeriod = true
-		} else if !isValidHostCharacter(data[i:]) && data[i] != '-' {
-			break
-		}
-	}
-
-	if foundUnderscore {
-		return 0
-	}
-
-	if allowShort {
-		// If allowShort is set, accept any string of valid domain characters
-		return i
-	}
-
-	// If allowShort isn't set, a valid domain just requires at least a single period. Note that this
-	// logic isn't entirely necessary because we already know the string starts with "www." when
-	// this is called from parseWWWAutolink
-	if foundPeriod {
-		return i
-	} else {
-		return 0
-	}
-}
-
-// Returns true if the provided link starts with a valid character for a domain name. Equivalent to
-// is_valid_hostchar from the reference code.
-func isValidHostCharacter(link string) bool {
-	c, _ := utf8.DecodeRuneInString(link)
-	if c == utf8.RuneError {
-		return false
-	}
-
-	return !unicode.IsSpace(c) && !unicode.IsPunct(c)
-}
-
-// Removes any trailing characters such as punctuation or stray brackets that shouldn't be part of the link.
-// Returns a new end position for the link. Equivalent to autolink_delim from the reference code.
-func trimTrailingCharactersFromLink(markdown string, start int, end int) int {
-	runes := []rune(markdown[start:end])
-	linkEnd := len(runes)
-
-	// Cut off the link before an open angle bracket if it contains one
-	for i, c := range runes {
-		if c == '<' {
-			linkEnd = i
-			break
-		}
-	}
-
-	for linkEnd > 0 {
-		c := runes[linkEnd-1]
-
-		if !canEndAutolink(c) {
-			// Trim trailing quotes, periods, etc
-			linkEnd = linkEnd - 1
-		} else if c == ';' {
-			// Trim a trailing HTML entity
-			newEnd := linkEnd - 2
-
-			for newEnd > 0 && ((runes[newEnd] >= 'a' && runes[newEnd] <= 'z') || (runes[newEnd] >= 'A' && runes[newEnd] <= 'Z')) {
-				newEnd -= 1
-			}
-
-			if newEnd < linkEnd-2 && runes[newEnd] == '&' {
-				linkEnd = newEnd
-			} else {
-				// This isn't actually an HTML entity, so just trim the semicolon
-				linkEnd = linkEnd - 1
-			}
-		} else if c == ')' {
-			// Only allow an autolink ending with a bracket if that bracket is part of a matching pair of brackets.
-			// If there are more closing brackets than opening ones, remove the extra bracket
-
-			numClosing := 0
-			numOpening := 0
-
-			// Examples (input text => output linked portion):
-			//
-			//  http://www.pokemon.com/Pikachu_(Electric)
-			//    => http://www.pokemon.com/Pikachu_(Electric)
-			//
-			//  http://www.pokemon.com/Pikachu_((Electric)
-			//    => http://www.pokemon.com/Pikachu_((Electric)
-			//
-			//  http://www.pokemon.com/Pikachu_(Electric))
-			//    => http://www.pokemon.com/Pikachu_(Electric)
-			//
-			//  http://www.pokemon.com/Pikachu_((Electric))
-			//    => http://www.pokemon.com/Pikachu_((Electric))
-
-			for i := 0; i < linkEnd; i++ {
-				if runes[i] == '(' {
-					numOpening += 1
-				} else if runes[i] == ')' {
-					numClosing += 1
-				}
-			}
-
-			if numClosing <= numOpening {
-				// There's fewer or equal closing brackets, so we've found the end of the link
-				break
-			}
-
-			linkEnd -= 1
-		} else {
-			// There's no special characters at the end of the link, so we're at the end
-			break
-		}
-	}
-
-	return start + len(string(runes[:linkEnd]))
-}
-
-func canEndAutolink(c rune) bool {
-	switch c {
-	case '?', '!', '.', ',', ':', '*', '_', '~', '\'', '"':
-		return false
-	default:
-		return true
-	}
-}