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gosora/plugin_bbcode.go
Azareal 9b1489b90f Happy 100th commit! For the 100th commit, I've revamped a good portion of the user interface, and we don't plan on stopping! There's more to come! 
Each theme has more of a distinct feel in the control panel now. I moved a large portion of the inline CSS into global.css, tweaked some core code which didn't line up, and added CSS text insertions to make things more flexible.

Revamped the alerts interface. We have more changes coming up!
Added screenshots for Tempra Cursive and Tempra Conflux Mobile to the README.
Added a .htaccess file, just in case someone plops Gosora in Apache's /www/ folder to stop the contents of config.go from becoming publically visible. Never put Gosora in your /www/ folder, Gosora is a standalone program which does NOT use Apache or any other webserver.
Fixed a bug in the inline forum editor.
Added a hand-written Markdown parser which is much faster than the previous Regex based one. This is still a work in progress.
Added support for strikethrough and underline elements to the Markdown parser.
Fixed the missing semicolons in global.js
Revamped the form CSS.
Author bits on the theme manager now link to the author's website.
Improved the profiles a little.
The code in the stylesheets now have a more consistent style.
Fixed a bug in the Cosmo theme relating to the fact that Gosora doesn't have sidebars yet.

There are many more changes which aren't listed here.
If weirdness regarding lines or spacing occurs, I'm experimenting with a new text editor. I hope to have this fixed by the next commit.
2017-05-29 15:52:37 +01:00

374 lines
11 KiB
Go
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package main
//import "log"
//import "fmt"
import "bytes"
//import "strings"
import "strconv"
import "regexp"
import "time"
import "math/rand"
var random *rand.Rand
var bbcode_invalid_number []byte
var bbcode_missing_tag []byte
var bbcode_bold *regexp.Regexp
var bbcode_italic *regexp.Regexp
var bbcode_underline *regexp.Regexp
var bbcode_strikethrough *regexp.Regexp
var bbcode_url *regexp.Regexp
var bbcode_url_label *regexp.Regexp
var bbcode_quotes *regexp.Regexp
func init() {
plugins["bbcode"] = NewPlugin("bbcode","BBCode","Azareal","http://github.com/Azareal","","","",init_bbcode,nil,deactivate_bbcode)
}
func init_bbcode() {
//plugins["bbcode"].AddHook("parse_assign", bbcode_parse_without_code)
plugins["bbcode"].AddHook("parse_assign", bbcode_full_parse)
bbcode_invalid_number = []byte("<span style='color: red;'>[Invalid Number]</span>")
bbcode_missing_tag = []byte("<span style='color: red;'>[Missing Tag]</span>")
bbcode_bold = regexp.MustCompile(`(?s)\[b\](.*)\[/b\]`)
bbcode_italic = regexp.MustCompile(`(?s)\[i\](.*)\[/i\]`)
bbcode_underline = regexp.MustCompile(`(?s)\[u\](.*)\[/u\]`)
bbcode_strikethrough = regexp.MustCompile(`(?s)\[s\](.*)\[/s\]`)
urlpattern := `(http|https|ftp|mailto*)(:??)\/\/([\.a-zA-Z\/]+)`
bbcode_url = regexp.MustCompile(`\[url\]` + urlpattern + `\[/url\]`)
bbcode_url_label = regexp.MustCompile(`(?s)\[url=` + urlpattern + `\](.*)\[/url\]`)
bbcode_quotes = regexp.MustCompile(`\[quote\](.*)\[/quote\]`)
random = rand.New(rand.NewSource(time.Now().UnixNano()))
}
func deactivate_bbcode() {
//plugins["bbcode"].RemoveHook("parse_assign", bbcode_parse_without_code)
plugins["bbcode"].RemoveHook("parse_assign", bbcode_full_parse)
}
func bbcode_regex_parse(data interface{}) interface{} {
msg := data.(string)
msg = bbcode_bold.ReplaceAllString(msg,"<b>$1</b>")
msg = bbcode_italic.ReplaceAllString(msg,"<i>$1</i>")
msg = bbcode_underline.ReplaceAllString(msg,"<u>$1</u>")
msg = bbcode_strikethrough.ReplaceAllString(msg,"<s>$1</s>")
msg = bbcode_url.ReplaceAllString(msg,"<a href=\"$1$2//$3\" rel=\"nofollow\">$1$2//$3</i>")
msg = bbcode_url_label.ReplaceAllString(msg,"<a href=\"$1$2//$3\" rel=\"nofollow\">$4</i>")
msg = bbcode_quotes.ReplaceAllString(msg,"<span class=\"postQuote\">$1</span>")
return msg
}
// Only does the simple BBCode like [u], [b], [i] and [s]
func bbcode_simple_parse(data interface{}) interface{} {
msg := data.(string)
msgbytes := []byte(msg)
has_u := false
has_b := false
has_i := false
has_s := false
for i := 0; (i + 2) < len(msgbytes); i++ {
if msgbytes[i] == '[' && msgbytes[i + 2] == ']' {
if msgbytes[i + 1] == 'b' && !has_b {
msgbytes[i] = '<'
msgbytes[i + 2] = '>'
has_b = true
} else if msgbytes[i + 1] == 'i' && !has_i {
msgbytes[i] = '<'
msgbytes[i + 2] = '>'
has_i = true
} else if msgbytes[i + 1] == 'u' && !has_u {
msgbytes[i] = '<'
msgbytes[i + 2] = '>'
has_u = true
} else if msgbytes[i + 1] == 's' && !has_s {
msgbytes[i] = '<'
msgbytes[i + 2] = '>'
has_s = true
}
i += 2
}
}
// There's an unclosed tag in there x.x
if has_i || has_u || has_b || has_s {
closer := []byte("</u></i></b></s>")
msgbytes = append(msgbytes, closer...)
}
return string(msgbytes)
}
// Here for benchmarking purposes. Might add a plugin setting for disabling [code] as it has it's paws everywhere
func bbcode_parse_without_code(data interface{}) interface{} {
msg := data.(string)
msgbytes := []byte(msg)
has_u := false
has_b := false
has_i := false
has_s := false
complex_bbc := false
for i := 0; (i + 3) < len(msgbytes); i++ {
if msgbytes[i] == '[' {
if msgbytes[i + 2] != ']' {
if msgbytes[i + 1] == '/' {
if msgbytes[i + 3] == ']' {
if msgbytes[i + 2] == 'b' {
msgbytes[i] = '<'
msgbytes[i + 3] = '>'
has_b = false
} else if msgbytes[i + 2] == 'i' {
msgbytes[i] = '<'
msgbytes[i + 3] = '>'
has_i = false
} else if msgbytes[i + 2] == 'u' {
msgbytes[i] = '<'
msgbytes[i + 3] = '>'
has_u = false
} else if msgbytes[i + 2] == 's' {
msgbytes[i] = '<'
msgbytes[i + 3] = '>'
has_s = false
}
i += 3
} else {
complex_bbc = true
}
} else {
complex_bbc = true
}
} else {
if msgbytes[i + 1] == 'b' && !has_b {
msgbytes[i] = '<'
msgbytes[i + 2] = '>'
has_b = true
} else if msgbytes[i + 1] == 'i' && !has_i {
msgbytes[i] = '<'
msgbytes[i + 2] = '>'
has_i = true
} else if msgbytes[i + 1] == 'u' && !has_u {
msgbytes[i] = '<'
msgbytes[i + 2] = '>'
has_u = true
} else if msgbytes[i + 1] == 's' && !has_s {
msgbytes[i] = '<'
msgbytes[i + 2] = '>'
has_s = true
}
i += 2
}
}
}
// There's an unclosed tag in there x.x
if has_i || has_u || has_b || has_s {
closer := []byte("</u></i></b></s>")
msgbytes = append(msgbytes, closer...)
}
// Copy the new complex parser over once the rough edges have been smoothed over
if complex_bbc {
msg = bbcode_url.ReplaceAllString(msg,"<a href=\"$1$2//$3\" rel=\"nofollow\">$1$2//$3</i>")
msg = bbcode_url_label.ReplaceAllString(msg,"<a href=\"$1$2//$3\" rel=\"nofollow\">$4</i>")
msg = bbcode_quotes.ReplaceAllString(msg,"<span class=\"postQuote\">$1</span>")
}
return string(msgbytes)
}
// Does every type of BBCode
func bbcode_full_parse(data interface{}) interface{} {
msg := data.(string)
//fmt.Println("BBCode PrePre String:")
//fmt.Println("`"+msg+"`")
//fmt.Println("----")
msgbytes := []byte(msg)
has_u := false
has_b := false
has_i := false
has_s := false
has_c := false
complex_bbc := false
msgbytes = append(msgbytes,space_gap...)
//fmt.Println("BBCode Simple Pre:")
//fmt.Println("`"+string(msgbytes)+"`")
//fmt.Println("----")
for i := 0; i < len(msgbytes); i++ {
if msgbytes[i] == '[' {
if msgbytes[i + 2] != ']' {
if msgbytes[i + 1] == '/' {
if msgbytes[i + 3] == ']' {
if !has_c {
if msgbytes[i + 2] == 'b' {
msgbytes[i] = '<'
msgbytes[i + 3] = '>'
has_b = false
} else if msgbytes[i + 2] == 'i' {
msgbytes[i] = '<'
msgbytes[i + 3] = '>'
has_i = false
} else if msgbytes[i + 2] == 'u' {
msgbytes[i] = '<'
msgbytes[i + 3] = '>'
has_u = false
} else if msgbytes[i + 2] == 's' {
msgbytes[i] = '<'
msgbytes[i + 3] = '>'
has_s = false
}
i += 3
}
} else {
if msgbytes[i+2] == 'c' && msgbytes[i+3] == 'o' && msgbytes[i+4] == 'd' && msgbytes[i+5] == 'e' && msgbytes[i+6] == ']' {
has_c = false
i += 7
}
//if msglen >= (i+6) {
// fmt.Println("boo")
// fmt.Println(msglen)
// fmt.Println(i+6)
// fmt.Println(string(msgbytes[i:i+6]))
//}
complex_bbc = true
}
} else {
if msgbytes[i+1] == 'c' && msgbytes[i+2] == 'o' && msgbytes[i+3] == 'd' && msgbytes[i+4] == 'e' && msgbytes[i+5] == ']' {
has_c = true
i += 6
}
//if msglen >= (i+5) {
// fmt.Println("boo2")
// fmt.Println(string(msgbytes[i:i+5]))
//}
complex_bbc = true
}
} else if !has_c {
if msgbytes[i + 1] == 'b' && !has_b {
msgbytes[i] = '<'
msgbytes[i + 2] = '>'
has_b = true
} else if msgbytes[i + 1] == 'i' && !has_i {
msgbytes[i] = '<'
msgbytes[i + 2] = '>'
has_i = true
} else if msgbytes[i + 1] == 'u' && !has_u {
msgbytes[i] = '<'
msgbytes[i + 2] = '>'
has_u = true
} else if msgbytes[i + 1] == 's' && !has_s {
msgbytes[i] = '<'
msgbytes[i + 2] = '>'
has_s = true
}
i += 2
}
}
}
// There's an unclosed tag in there x.x
if has_i || has_u || has_b || has_s {
closer := []byte("</u></i></b></s>")
msgbytes = append(msgbytes, closer...)
}
if complex_bbc {
i := 0
var start, lastTag int
var outbytes []byte
//fmt.Println("BBCode Pre:")
//fmt.Println("`"+string(msgbytes)+"`")
//fmt.Println("----")
for ; i < len(msgbytes); i++ {
MainLoop:
if msgbytes[i] == '[' {
OuterComplex:
if msgbytes[i + 1] == 'u' {
if msgbytes[i+2] == 'r' && msgbytes[i+3] == 'l' && msgbytes[i+4] == ']' {
start = i + 5
outbytes = append(outbytes, msgbytes[lastTag:i]...)
i = start
i += partial_url_bytes_len(msgbytes[start:])
//fmt.Println("Partial Bytes:")
//fmt.Println(string(msgbytes[start:]))
//fmt.Println("-----")
if !bytes.Equal(msgbytes[i:i+6],[]byte("[/url]")) {
//fmt.Println("Invalid Bytes:")
//fmt.Println(string(msgbytes[i:i+6]))
//fmt.Println("-----")
outbytes = append(outbytes, invalid_url...)
goto MainLoop
}
outbytes = append(outbytes, url_open...)
outbytes = append(outbytes, msgbytes[start:i]...)
outbytes = append(outbytes, url_open2...)
outbytes = append(outbytes, msgbytes[start:i]...)
outbytes = append(outbytes, url_close...)
i += 6
lastTag = i
}
} else if msgbytes[i + 1] == 'r' {
if bytes.Equal(msgbytes[i+2:i+6],[]byte("and]")) {
outbytes = append(outbytes, msgbytes[lastTag:i]...)
start = i + 6
i = start
for ;; i++ {
if msgbytes[i] == '[' {
if !bytes.Equal(msgbytes[i+1:i+7],[]byte("/rand]")) {
outbytes = append(outbytes, bbcode_missing_tag...)
goto OuterComplex
}
break
} else if (len(msgbytes) - 1) < (i + 10) {
outbytes = append(outbytes, bbcode_missing_tag...)
goto OuterComplex
}
}
number, err := strconv.ParseInt(string(msgbytes[start:i]),10,64)
if err != nil {
outbytes = append(outbytes, bbcode_invalid_number...)
goto MainLoop
}
dat := []byte(strconv.FormatInt((random.Int63n(number)),10))
outbytes = append(outbytes, dat...)
//log.Print("Outputted the random number")
i += 7
lastTag = i
}
}
}
}
//fmt.Println(string(outbytes))
if lastTag != i {
outbytes = append(outbytes, msgbytes[lastTag:]...)
//fmt.Println("Outbytes:")
//fmt.Println(`"`+string(outbytes)+`"`)
//fmt.Println("----")
}
if len(outbytes) != 0 {
//fmt.Println("BBCode Post:")
//fmt.Println(`"`+string(outbytes[0:len(outbytes) - 10])+`"`)
//fmt.Println("----")
msg = string(outbytes[0:len(outbytes) - 10])
} else {
msg = string(msgbytes[0:len(msgbytes) - 10])
}
//msg = bbcode_url.ReplaceAllString(msg,"<a href=\"$1$2//$3\" rel=\"nofollow\">$1$2//$3</i>")
msg = bbcode_url_label.ReplaceAllString(msg,"<a href=\"$1$2//$3\" rel=\"nofollow\">$4</i>")
msg = bbcode_quotes.ReplaceAllString(msg,"<span class=\"postQuote\">$1</span>")
// Convert [code] into class="codequotes"
//fmt.Println("guuuaaaa")
} else {
msg = string(msgbytes[0:len(msgbytes) - 10])
}
return msg
}
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