mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-09-20 06:42:31 +00:00
04567c765e
This uses our own gomatrix lib with the SendHTML function which adds HTML to formatted_body in matrix. golang-commonmark is used to convert markdown into valid HTML.
405 lines
6.6 KiB
Go
405 lines
6.6 KiB
Go
// Copyright 2015 The Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package linkify
|
|
|
|
import "unicode/utf8"
|
|
|
|
func atoi3(s string, start int) (int, bool) {
|
|
n := 0
|
|
var i int
|
|
for i = start; i < len(s) && digit(s[i]); i++ {
|
|
n = n*10 + int(s[i]-'0')
|
|
if n > 255 {
|
|
return 0, false
|
|
}
|
|
}
|
|
if i == start {
|
|
return 0, false
|
|
}
|
|
return i, true
|
|
}
|
|
|
|
func skipIPv4(s string) (_ int, _ bool) {
|
|
j := 0
|
|
for i := 0; i < 4; i++ {
|
|
if j >= len(s) {
|
|
return
|
|
}
|
|
if i > 0 {
|
|
if s[j] != '.' {
|
|
return
|
|
}
|
|
j++
|
|
}
|
|
n, ok := atoi3(s, j)
|
|
if !ok {
|
|
return
|
|
}
|
|
j = n
|
|
}
|
|
return j, true
|
|
}
|
|
|
|
func atoi5(s string, start int) (int, bool) {
|
|
n := 0
|
|
var i int
|
|
for i = start; i < len(s) && digit(s[i]); i++ {
|
|
n = n*10 + int(s[i]-'0')
|
|
if n > 65535 {
|
|
return 0, false
|
|
}
|
|
}
|
|
if i == start || n == 0 {
|
|
return 0, false
|
|
}
|
|
return i, true
|
|
}
|
|
|
|
func skipPort(s string, start int) int {
|
|
if start >= len(s) || s[start] != ':' {
|
|
return start
|
|
}
|
|
end, ok := atoi5(s, start+1)
|
|
if !ok {
|
|
return start
|
|
}
|
|
return end
|
|
}
|
|
|
|
func skipPath(s string, start int) int {
|
|
if start >= len(s) || s[start] != '/' {
|
|
return start // skip empty path
|
|
}
|
|
var stack []rune
|
|
var notClosedIndex int
|
|
var nHyphen int
|
|
end := start + 1
|
|
loop:
|
|
for end < len(s) {
|
|
r, rlen := utf8.DecodeRuneInString(s[end:])
|
|
if r == utf8.RuneError {
|
|
nHyphen = 0
|
|
break
|
|
}
|
|
|
|
switch {
|
|
case isUnreserved(r):
|
|
if r == '-' {
|
|
nHyphen++
|
|
if nHyphen > 1 {
|
|
break loop
|
|
}
|
|
} else {
|
|
nHyphen = 0
|
|
}
|
|
case isSubDelimiter(r) || r == '[' || r == ']':
|
|
nHyphen = 0
|
|
switch r {
|
|
case '[', '(':
|
|
if len(stack) == 0 {
|
|
notClosedIndex = end
|
|
}
|
|
stack = append(stack, r)
|
|
case ']', ')':
|
|
opening := '['
|
|
if r == ')' {
|
|
opening = '('
|
|
}
|
|
if len(stack) == 0 || stack[len(stack)-1] != opening {
|
|
break loop
|
|
}
|
|
stack = stack[:len(stack)-1]
|
|
}
|
|
case r == '/' || r == ':' || r == '@':
|
|
nHyphen = 0
|
|
case r == '%':
|
|
nHyphen = 0
|
|
if end+2 >= len(s) {
|
|
break loop
|
|
}
|
|
if !(hexDigit(s[end+1]) &&
|
|
hexDigit(s[end+2])) {
|
|
break loop
|
|
}
|
|
end += 2
|
|
default:
|
|
nHyphen = 0
|
|
if r != ' ' || len(stack) == 0 {
|
|
break loop
|
|
}
|
|
}
|
|
end += rlen
|
|
}
|
|
if len(stack) > 0 {
|
|
return notClosedIndex
|
|
}
|
|
if nHyphen > 0 {
|
|
return end - nHyphen + 1
|
|
}
|
|
return end
|
|
}
|
|
|
|
func skipQuery(s string, start int) int {
|
|
if start >= len(s) || s[start] != '?' {
|
|
return start
|
|
}
|
|
var stack []rune
|
|
var notClosedIndex int
|
|
var nHyphen int
|
|
end := start + 1
|
|
loop:
|
|
for end < len(s) {
|
|
r, rlen := utf8.DecodeRuneInString(s[end:])
|
|
if r == utf8.RuneError {
|
|
nHyphen = 0
|
|
break
|
|
}
|
|
|
|
switch {
|
|
case isUnreserved(r):
|
|
if r == '-' {
|
|
nHyphen++
|
|
if nHyphen > 1 {
|
|
break loop
|
|
}
|
|
} else {
|
|
nHyphen = 0
|
|
}
|
|
case isSubDelimiter(r) || r == '[' || r == ']':
|
|
nHyphen = 0
|
|
switch r {
|
|
case '[', '(':
|
|
if len(stack) == 0 {
|
|
notClosedIndex = end
|
|
}
|
|
stack = append(stack, r)
|
|
case ']', ')':
|
|
opening := '['
|
|
if r == ')' {
|
|
opening = '('
|
|
}
|
|
if len(stack) == 0 || stack[len(stack)-1] != opening {
|
|
break loop
|
|
}
|
|
stack = stack[:len(stack)-1]
|
|
}
|
|
case r == '?' || r == '/' || r == ':' || r == '@':
|
|
nHyphen = 0
|
|
case r == '%':
|
|
nHyphen = 0
|
|
if end+2 >= len(s) {
|
|
break loop
|
|
}
|
|
if !(hexDigit(s[end+1]) &&
|
|
hexDigit(s[end+2])) {
|
|
break loop
|
|
}
|
|
end += 2
|
|
default:
|
|
nHyphen = 0
|
|
if r != ' ' || len(stack) == 0 {
|
|
break loop
|
|
}
|
|
}
|
|
end += rlen
|
|
}
|
|
if len(stack) > 0 {
|
|
return notClosedIndex
|
|
}
|
|
if nHyphen > 0 {
|
|
return end - nHyphen + 1
|
|
}
|
|
return end
|
|
}
|
|
|
|
func skipFragment(s string, start int) int {
|
|
if start >= len(s) || s[start] != '#' {
|
|
return start
|
|
}
|
|
var stack []rune
|
|
var notClosedIndex int
|
|
var nHyphen int
|
|
end := start + 1
|
|
loop:
|
|
for end < len(s) {
|
|
r, rlen := utf8.DecodeRuneInString(s[end:])
|
|
if r == utf8.RuneError {
|
|
nHyphen = 0
|
|
break
|
|
}
|
|
|
|
switch {
|
|
case isUnreserved(r):
|
|
if r == '-' {
|
|
nHyphen++
|
|
if nHyphen > 1 {
|
|
break loop
|
|
}
|
|
} else {
|
|
nHyphen = 0
|
|
}
|
|
case isSubDelimiter(r) || r == '[' || r == ']':
|
|
nHyphen = 0
|
|
switch r {
|
|
case '[', '(':
|
|
if len(stack) == 0 {
|
|
notClosedIndex = end
|
|
}
|
|
stack = append(stack, r)
|
|
case ']', ')':
|
|
opening := '['
|
|
if r == ')' {
|
|
opening = '('
|
|
}
|
|
if len(stack) == 0 || stack[len(stack)-1] != opening {
|
|
break loop
|
|
}
|
|
stack = stack[:len(stack)-1]
|
|
}
|
|
case r == '?' || r == '/' || r == ':' || r == '@':
|
|
nHyphen = 0
|
|
case r == '%':
|
|
nHyphen = 0
|
|
if end+2 >= len(s) {
|
|
break loop
|
|
}
|
|
if !(hexDigit(s[end+1]) &&
|
|
hexDigit(s[end+2])) {
|
|
break loop
|
|
}
|
|
end += 2
|
|
default:
|
|
nHyphen = 0
|
|
if r != ' ' || len(stack) == 0 {
|
|
break loop
|
|
}
|
|
}
|
|
end += rlen
|
|
}
|
|
if len(stack) > 0 {
|
|
return notClosedIndex
|
|
}
|
|
if nHyphen > 0 {
|
|
return end - nHyphen + 1
|
|
}
|
|
return end
|
|
}
|
|
|
|
func unskipPunct(s string, start int) int {
|
|
end := start - 1
|
|
if end < 0 || end >= len(s) || !basicPunct[s[end]] {
|
|
return start
|
|
}
|
|
return end
|
|
}
|
|
|
|
func findHostnameStart(s string, start int) (_ int, _ bool) {
|
|
end := start
|
|
lastDot := true
|
|
nHyphen := 0
|
|
loop:
|
|
for end > 0 {
|
|
r, rlen := utf8.DecodeLastRuneInString(s[:end])
|
|
if r == utf8.RuneError {
|
|
return
|
|
}
|
|
|
|
switch {
|
|
case r == '.':
|
|
if nHyphen > 0 {
|
|
return
|
|
}
|
|
lastDot = true
|
|
case r == '-':
|
|
if end == start {
|
|
return
|
|
}
|
|
if lastDot {
|
|
return
|
|
}
|
|
nHyphen++
|
|
if nHyphen == 3 {
|
|
return
|
|
}
|
|
case r == ':' || r == '/' || r == '\\' || r == '_':
|
|
return
|
|
case isPunctOrSpaceOrControl(r):
|
|
break loop
|
|
default:
|
|
lastDot = false
|
|
nHyphen = 0
|
|
}
|
|
end -= rlen
|
|
}
|
|
if lastDot || nHyphen > 0 {
|
|
return
|
|
}
|
|
return end, true
|
|
}
|
|
|
|
func findHostnameEnd(s string, start int) (_ int, _ int, _ bool) {
|
|
end := start
|
|
lastDot := false
|
|
lastDotPos := -1
|
|
nHyphen := 0
|
|
loop:
|
|
for end < len(s) {
|
|
r, rlen := utf8.DecodeRuneInString(s[end:])
|
|
if r == utf8.RuneError {
|
|
return
|
|
}
|
|
|
|
switch {
|
|
case r == '.':
|
|
if nHyphen > 0 {
|
|
return
|
|
}
|
|
if lastDot {
|
|
break loop
|
|
}
|
|
lastDot = true
|
|
lastDotPos = end
|
|
nHyphen = 0
|
|
case r == '-':
|
|
lastDot = false
|
|
if end == start {
|
|
return
|
|
}
|
|
if lastDot {
|
|
return
|
|
}
|
|
nHyphen++
|
|
if nHyphen == 3 {
|
|
break loop
|
|
}
|
|
case r == '\\' || r == '_':
|
|
return
|
|
case isPunctOrSpaceOrControl(r):
|
|
break loop
|
|
default:
|
|
lastDot = false
|
|
nHyphen = 0
|
|
}
|
|
end += rlen
|
|
}
|
|
|
|
if nHyphen > 0 {
|
|
end -= nHyphen
|
|
} else if lastDot {
|
|
if s[end-1] == '.' {
|
|
end--
|
|
}
|
|
lastDotPos = end - 1
|
|
for lastDotPos >= start && s[lastDotPos] != '.' {
|
|
lastDotPos--
|
|
}
|
|
if lastDotPos < start {
|
|
lastDotPos = -1
|
|
}
|
|
}
|
|
|
|
return end, lastDotPos, true
|
|
}
|