gosora/common/parser.go

935 lines
29 KiB
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package common
import (
"bytes"
"net/url"
"regexp"
"strconv"
"strings"
"unicode/utf8"
)
2016-12-02 07:38:54 +00:00
var SpaceGap = []byte(" ")
var httpProtBytes = []byte("http://")
var InvalidURL = []byte("<span style='color: red;'>[Invalid URL]</span>")
var InvalidTopic = []byte("<span style='color: red;'>[Invalid Topic]</span>")
var InvalidProfile = []byte("<span style='color: red;'>[Invalid Profile]</span>")
var InvalidForum = []byte("<span style='color: red;'>[Invalid Forum]</span>")
var unknownMedia = []byte("<span style='color: red;'>[Unknown Media]</span>")
Added support for two-factor authentication. Added the Account Dashboard and merged a few account views into it. BREAKING CHANGE: We now use config/config.json instead of config/config.go, be sure to setup one of these files, you can config_default.json as an example of what a config.json should look like. If you don't have an existing installation, you can just rely on the installer to do this for you. CSS Changes (does not include Nox Theme): Sidebar should no longer show up in the account manager in some odd situations or themes. Made a few CSS rules more generic. Forms have a new look in Cosora now. Config Changes: Removed the DefaultRoute config field. Added the DefaultPath config field. Added the MaxRequestSizeStr config field to make it easier for users to input custom max request sizes without having to use a calculator or figure out how many bytes there are in a megabyte. Removed the CacheTopicUser config field. Added the UserCache config field. Added the TopicCache config field Phrases: Removed ten english phrases. Added 21 english phrases. Changed eleven english phrases. Removed some duplicate indices in the english phrase pack. Removed some old benchmark code. Tweaked some things to make the linter happy. Added comments for all the MemoryUserCache and MemoryTopicCache methods. Added a comment for the null caches, consult the other caches for further information on the methods. Added a client-side check to make sure the user doesn't upload too much data in a single post. The server already did this, but it might be a while before feedback arrives from it. Simplified a lot of the control panel route code with the buildBasePage function. Renamed /user/edit/critical/ to /user/edit/password/ Renamed /user/edit/critical/submit/ to /user/edit/password/submit/ Made some small improvements to SEO with a couple of meta tags. Renamed some of the control panel templates so that they use _ instead of -. Fixed a bug where notices were being moved to the wrong place in some areas in Cosora. Added the writeJsonError function to help abstract writing json errors. Moved routePanelUsers to panel.Users Moved routePanelUsersEdit to panel.UsersEdit Moved routePanelUsersEditSubmit to panel.UsersEditSubmit Renamed routes.AccountEditCritical to routes.AccountEditPassword Renamed routes.AccountEditCriticalSubmit to routes.AccountEditPasswordSubmit Removed the routes.AccountEditAvatar and routes.AccountEditUsername routes. Fixed a data race in MemoryTopicCache.Add which could lead to the capacity limit being bypassed. Tweaked MemoryTopicCache.AddUnsafe under the assumption that it's not going to be safe anyway, but we might as-well try in case this call is properly synchronised. Fixed a data race in MemoryTopicCache.Remove which could lead to the length counter being decremented twice. Tweaked the behaviour of MemoryTopicCache.RemoveUnsafe to mirror that of Remove. Fixed a data race in MemoryUserCache.Add which could lead to the capacity limit being bypassed. User can no longer change their usernames to blank. Made a lot of progress on the Nox theme. Added modified FA5 SVGs as a dependency for Nox. Be sure to run the patcher or update script and don't forget to create a customised config/config.json file.
2018-06-17 07:28:18 +00:00
var URLOpen = []byte("<a href='")
var URLOpen2 = []byte("'>")
var bytesSinglequote = []byte("'")
var bytesGreaterthan = []byte(">")
var urlMention = []byte(" class='mention'")
Added support for two-factor authentication. Added the Account Dashboard and merged a few account views into it. BREAKING CHANGE: We now use config/config.json instead of config/config.go, be sure to setup one of these files, you can config_default.json as an example of what a config.json should look like. If you don't have an existing installation, you can just rely on the installer to do this for you. CSS Changes (does not include Nox Theme): Sidebar should no longer show up in the account manager in some odd situations or themes. Made a few CSS rules more generic. Forms have a new look in Cosora now. Config Changes: Removed the DefaultRoute config field. Added the DefaultPath config field. Added the MaxRequestSizeStr config field to make it easier for users to input custom max request sizes without having to use a calculator or figure out how many bytes there are in a megabyte. Removed the CacheTopicUser config field. Added the UserCache config field. Added the TopicCache config field Phrases: Removed ten english phrases. Added 21 english phrases. Changed eleven english phrases. Removed some duplicate indices in the english phrase pack. Removed some old benchmark code. Tweaked some things to make the linter happy. Added comments for all the MemoryUserCache and MemoryTopicCache methods. Added a comment for the null caches, consult the other caches for further information on the methods. Added a client-side check to make sure the user doesn't upload too much data in a single post. The server already did this, but it might be a while before feedback arrives from it. Simplified a lot of the control panel route code with the buildBasePage function. Renamed /user/edit/critical/ to /user/edit/password/ Renamed /user/edit/critical/submit/ to /user/edit/password/submit/ Made some small improvements to SEO with a couple of meta tags. Renamed some of the control panel templates so that they use _ instead of -. Fixed a bug where notices were being moved to the wrong place in some areas in Cosora. Added the writeJsonError function to help abstract writing json errors. Moved routePanelUsers to panel.Users Moved routePanelUsersEdit to panel.UsersEdit Moved routePanelUsersEditSubmit to panel.UsersEditSubmit Renamed routes.AccountEditCritical to routes.AccountEditPassword Renamed routes.AccountEditCriticalSubmit to routes.AccountEditPasswordSubmit Removed the routes.AccountEditAvatar and routes.AccountEditUsername routes. Fixed a data race in MemoryTopicCache.Add which could lead to the capacity limit being bypassed. Tweaked MemoryTopicCache.AddUnsafe under the assumption that it's not going to be safe anyway, but we might as-well try in case this call is properly synchronised. Fixed a data race in MemoryTopicCache.Remove which could lead to the length counter being decremented twice. Tweaked the behaviour of MemoryTopicCache.RemoveUnsafe to mirror that of Remove. Fixed a data race in MemoryUserCache.Add which could lead to the capacity limit being bypassed. User can no longer change their usernames to blank. Made a lot of progress on the Nox theme. Added modified FA5 SVGs as a dependency for Nox. Be sure to run the patcher or update script and don't forget to create a customised config/config.json file.
2018-06-17 07:28:18 +00:00
var URLClose = []byte("</a>")
var imageOpen = []byte("<a href=\"")
var imageOpen2 = []byte("\"><img src='")
var imageClose = []byte("' class='postImage' /></a>")
var urlPattern = `(?s)([ {1}])((http|https|ftp|mailto)*)(:{??)\/\/([\.a-zA-Z\/]+)([ {1}])`
var urlReg *regexp.Regexp
func init() {
urlReg = regexp.MustCompile(urlPattern)
}
// TODO: Write a test for this
func shortcodeToUnicode(msg string) string {
//re := regexp.MustCompile(":(.):")
msg = strings.Replace(msg, ":grinning:", "😀", -1)
msg = strings.Replace(msg, ":grin:", "😁", -1)
msg = strings.Replace(msg, ":joy:", "😂", -1)
msg = strings.Replace(msg, ":rofl:", "🤣", -1)
msg = strings.Replace(msg, ":smiley:", "😃", -1)
msg = strings.Replace(msg, ":smile:", "😄", -1)
msg = strings.Replace(msg, ":sweat_smile:", "😅", -1)
msg = strings.Replace(msg, ":laughing:", "😆", -1)
msg = strings.Replace(msg, ":satisfied:", "😆", -1)
msg = strings.Replace(msg, ":wink:", "😉", -1)
msg = strings.Replace(msg, ":blush:", "😊", -1)
msg = strings.Replace(msg, ":yum:", "😋", -1)
msg = strings.Replace(msg, ":sunglasses:", "😎", -1)
msg = strings.Replace(msg, ":heart_eyes:", "😍", -1)
msg = strings.Replace(msg, ":kissing_heart:", "😘", -1)
msg = strings.Replace(msg, ":kissing:", "😗", -1)
msg = strings.Replace(msg, ":kissing_smiling_eyes:", "😙", -1)
msg = strings.Replace(msg, ":kissing_closed_eyes:", "😚", -1)
msg = strings.Replace(msg, ":relaxed:", "☺️", -1)
msg = strings.Replace(msg, ":slight_smile:", "🙂", -1)
msg = strings.Replace(msg, ":hugging:", "🤗", -1)
msg = strings.Replace(msg, ":thinking:", "🤔", -1)
msg = strings.Replace(msg, ":neutral_face:", "😐", -1)
msg = strings.Replace(msg, ":expressionless:", "😑", -1)
msg = strings.Replace(msg, ":no_mouth:", "😶", -1)
msg = strings.Replace(msg, ":rolling_eyes:", "🙄", -1)
msg = strings.Replace(msg, ":smirk:", "😏", -1)
msg = strings.Replace(msg, ":persevere:", "😣", -1)
msg = strings.Replace(msg, ":disappointed_relieved:", "😥", -1)
msg = strings.Replace(msg, ":open_mouth:", "😮", -1)
msg = strings.Replace(msg, ":zipper_mouth:", "🤐", -1)
msg = strings.Replace(msg, ":hushed:", "😯", -1)
msg = strings.Replace(msg, ":sleepy:", "😪", -1)
msg = strings.Replace(msg, ":tired_face:", "😫", -1)
msg = strings.Replace(msg, ":sleeping:", "😴", -1)
msg = strings.Replace(msg, ":relieved:", "😌", -1)
msg = strings.Replace(msg, ":nerd:", "🤓", -1)
msg = strings.Replace(msg, ":stuck_out_tongue:", "😛", -1)
msg = strings.Replace(msg, ":worried:", "😟", -1)
msg = strings.Replace(msg, ":drooling_face:", "🤤", -1)
msg = strings.Replace(msg, ":disappointed:", "😞", -1)
msg = strings.Replace(msg, ":astonished:", "😲", -1)
msg = strings.Replace(msg, ":slight_frown:", "🙁", -1)
msg = strings.Replace(msg, ":skull_crossbones:", "☠️", -1)
msg = strings.Replace(msg, ":skull:", "💀", -1)
msg = strings.Replace(msg, ":point_up:", "☝️", -1)
msg = strings.Replace(msg, ":v:", "✌️️", -1)
msg = strings.Replace(msg, ":writing_hand:", "✍️", -1)
msg = strings.Replace(msg, ":heart:", "❤️️", -1)
msg = strings.Replace(msg, ":heart_exclamation:", "❣️", -1)
msg = strings.Replace(msg, ":hotsprings:", "♨️", -1)
msg = strings.Replace(msg, ":airplane:", "✈️️", -1)
msg = strings.Replace(msg, ":hourglass:", "⌛", -1)
msg = strings.Replace(msg, ":watch:", "⌚", -1)
msg = strings.Replace(msg, ":comet:", "☄️", -1)
msg = strings.Replace(msg, ":snowflake:", "❄️", -1)
msg = strings.Replace(msg, ":cloud:", "☁️", -1)
msg = strings.Replace(msg, ":sunny:", "☀️", -1)
msg = strings.Replace(msg, ":spades:", "♠️", -1)
msg = strings.Replace(msg, ":hearts:", "♥️️", -1)
msg = strings.Replace(msg, ":diamonds:", "♦️", -1)
msg = strings.Replace(msg, ":clubs:", "♣️", -1)
msg = strings.Replace(msg, ":phone:", "☎️", -1)
msg = strings.Replace(msg, ":telephone:", "☎️", -1)
msg = strings.Replace(msg, ":biohazard:", "☣️", -1)
msg = strings.Replace(msg, ":radioactive:", "☢️", -1)
msg = strings.Replace(msg, ":scissors:", "✂️", -1)
msg = strings.Replace(msg, ":arrow_upper_right:", "↗️", -1)
msg = strings.Replace(msg, ":arrow_right:", "➡️", -1)
msg = strings.Replace(msg, ":arrow_lower_right:", "↘️", -1)
msg = strings.Replace(msg, ":arrow_lower_left:", "↙️", -1)
msg = strings.Replace(msg, ":arrow_upper_left:", "↖️", -1)
msg = strings.Replace(msg, ":arrow_up_down:", "↕️", -1)
msg = strings.Replace(msg, ":left_right_arrow:", "↔️", -1)
msg = strings.Replace(msg, ":leftwards_arrow_with_hook:", "↩️", -1)
msg = strings.Replace(msg, ":arrow_right_hook:", "↪️", -1)
msg = strings.Replace(msg, ":arrow_forward:", "▶️", -1)
msg = strings.Replace(msg, ":arrow_backward:", "◀️", -1)
msg = strings.Replace(msg, ":female:", "♀️", -1)
msg = strings.Replace(msg, ":male:", "♂️", -1)
msg = strings.Replace(msg, ":ballot_box_with_check:", "☑️", -1)
msg = strings.Replace(msg, ":heavy_check_mark:", "✔️️", -1)
msg = strings.Replace(msg, ":heavy_multiplication_x:", "✖️", -1)
msg = strings.Replace(msg, ":pisces:", "♓", -1)
msg = strings.Replace(msg, ":aquarius:", "♒", -1)
msg = strings.Replace(msg, ":capricorn:", "♑", -1)
msg = strings.Replace(msg, ":sagittarius:", "♐", -1)
msg = strings.Replace(msg, ":scorpius:", "♏", -1)
msg = strings.Replace(msg, ":libra:", "♎", -1)
msg = strings.Replace(msg, ":virgo:", "♍", -1)
msg = strings.Replace(msg, ":leo:", "♌", -1)
msg = strings.Replace(msg, ":cancer:", "♋", -1)
msg = strings.Replace(msg, ":gemini:", "♊", -1)
msg = strings.Replace(msg, ":taurus:", "♉", -1)
msg = strings.Replace(msg, ":aries:", "♈", -1)
msg = strings.Replace(msg, ":peace:", "☮️", -1)
msg = strings.Replace(msg, ":eight_spoked_asterisk:", "✳️", -1)
msg = strings.Replace(msg, ":eight_pointed_black_star:", "✴️", -1)
msg = strings.Replace(msg, ":snowman2:", "☃️", -1)
msg = strings.Replace(msg, ":umbrella2:", "☂️", -1)
msg = strings.Replace(msg, ":pencil2:", "✏️", -1)
msg = strings.Replace(msg, ":black_nib:", "✒️", -1)
msg = strings.Replace(msg, ":email:", "✉️", -1)
msg = strings.Replace(msg, ":envelope:", "✉️", -1)
msg = strings.Replace(msg, ":keyboard:", "⌨️", -1)
msg = strings.Replace(msg, ":white_small_square:", "▫️", -1)
msg = strings.Replace(msg, ":black_small_square:", "▪️", -1)
msg = strings.Replace(msg, ":secret:", "㊙️", -1)
msg = strings.Replace(msg, ":congratulations:", "㊗️", -1)
msg = strings.Replace(msg, ":m:", "Ⓜ️", -1)
msg = strings.Replace(msg, ":tm:", "™️️", -1)
msg = strings.Replace(msg, ":registered:", "®️", -1)
msg = strings.Replace(msg, ":copyright:", "©️", -1)
msg = strings.Replace(msg, ":wavy_dash:", "〰️", -1)
msg = strings.Replace(msg, ":bangbang:", "‼️", -1)
msg = strings.Replace(msg, ":sparkle:", "❇️", -1)
msg = strings.Replace(msg, ":star_of_david:", "✡️", -1)
msg = strings.Replace(msg, ":wheel_of_dharma:", "☸️", -1)
msg = strings.Replace(msg, ":yin_yang:", "☯️", -1)
msg = strings.Replace(msg, ":cross:", "✝️", -1)
msg = strings.Replace(msg, ":orthodox_cross:", "☦️", -1)
msg = strings.Replace(msg, ":star_and_crescent:", "☪️", -1)
msg = strings.Replace(msg, ":frowning2:", "☹️", -1)
msg = strings.Replace(msg, ":information_source:", "", -1)
msg = strings.Replace(msg, ":interrobang:", "⁉️", -1)
return msg
}
type TagToAction struct {
Suffix string
Do func(*TagToAction, bool, int, []rune) (int, string) // func(tagToAction,open,i,runes) (newI, output)
Depth int // For use by Do
PartialMode bool
}
// TODO: Write a test for this
func tryStepForward(i int, step int, runes []rune) (int, bool) {
i += step
if i < len(runes) {
return i, true
}
return i - step, false
}
// TODO: Write a test for this
func tryStepBackward(i int, step int, runes []rune) (int, bool) {
if i == 0 {
return i, false
}
return i - 1, true
}
// TODO: Preparse Markdown and normalize it into HTML?
func PreparseMessage(msg string) string {
// TODO: Kick this check down a level into SanitiseBody?
if !utf8.ValidString(msg) {
return ""
}
msg = strings.Replace(msg, "<p><br>", "\n\n", -1)
msg = strings.Replace(msg, "<p>", "\n\n", -1)
msg = strings.Replace(msg, "</p>", "", -1)
// TODO: Make this looser by moving it to the reverse HTML parser?
msg = strings.Replace(msg, "<br>", "\n\n", -1)
msg = strings.Replace(msg, "<br />", "\n\n", -1) // XHTML style
msg = strings.Replace(msg, "&nbsp;", "", -1)
msg = strings.Replace(msg, "\r", "", -1) // Windows artifact
//msg = strings.Replace(msg, "\n\n\n\n", "\n\n\n", -1)
msg = GetHookTable().Sshook("preparse_preassign", msg)
// There are a few useful cases for having spaces, but I'd like to stop the WYSIWYG from inserting random lines here and there
msg = SanitiseBody(msg)
var runes = []rune(msg)
msg = ""
// TODO: We can maybe reduce the size of this by using an offset?
// TODO: Move some of these closures out of this function to make things a little more efficient
var allowedTags = [][]string{
'e': []string{"m"},
's': []string{"", "trong", "pan"},
'd': []string{"el"},
'u': []string{""},
'b': []string{"", "lockquote"},
'i': []string{""},
'h': []string{"1", "2", "3"},
//'p': []string{""},
'g': []string{""}, // Quick and dirty fix for Grammarly
}
var buildLitMatch = func(tag string) func(*TagToAction, bool, int, []rune) (int, string) {
return func(action *TagToAction, open bool, _ int, _ []rune) (int, string) {
if open {
action.Depth++
return -1, "<" + tag + ">"
}
if action.Depth <= 0 {
return -1, ""
}
action.Depth--
return -1, "</" + tag + ">"
}
}
var tagToAction = [][]*TagToAction{
'e': []*TagToAction{&TagToAction{"m", buildLitMatch("em"), 0, false}},
's': []*TagToAction{
&TagToAction{"", buildLitMatch("del"), 0, false},
&TagToAction{"trong", buildLitMatch("strong"), 0, false},
// Hides the span tags Trumbowyg loves blasting out randomly
&TagToAction{"pan", func(act *TagToAction, open bool, i int, runes []rune) (int, string) {
if open {
act.Depth++
//fmt.Println("skipping attributes")
for ; i < len(runes); i++ {
if runes[i] == '&' && peekMatch(i, "gt;", runes) {
//fmt.Println("found tag exit")
return i + 3, " "
}
}
return -1, " "
}
if act.Depth <= 0 {
return -1, " "
}
act.Depth--
return -1, " "
}, 0, true},
},
'd': []*TagToAction{&TagToAction{"el", buildLitMatch("del"), 0, false}},
'u': []*TagToAction{&TagToAction{"", buildLitMatch("u"), 0, false}},
'b': []*TagToAction{
&TagToAction{"", buildLitMatch("strong"), 0, false},
&TagToAction{"lockquote", buildLitMatch("blockquote"), 0, false},
},
'i': []*TagToAction{&TagToAction{"", buildLitMatch("em"), 0, false}},
'h': []*TagToAction{
&TagToAction{"1", buildLitMatch("h2"), 0, false},
&TagToAction{"2", buildLitMatch("h3"), 0, false},
&TagToAction{"3", buildLitMatch("h4"), 0, false},
},
//'p': []*TagToAction{&TagToAction{"", buildLitMatch2("\n\n", ""), 0, false}},
'g': []*TagToAction{
&TagToAction{"", func(act *TagToAction, open bool, i int, runes []rune) (int, string) {
if open {
act.Depth++
//fmt.Println("skipping attributes")
for ; i < len(runes); i++ {
if runes[i] == '&' && peekMatch(i, "gt;", runes) {
//fmt.Println("found tag exit")
return i + 3, " "
}
}
return -1, " "
}
if act.Depth <= 0 {
return -1, " "
}
act.Depth--
return -1, " "
}, 0, true},
},
}
// TODO: Implement a less literal parser
for i := 0; i < len(runes); i++ {
char := runes[i]
// TODO: Make the slashes escapable too in case someone means to use a literaly slash, maybe as an example of how to escape elements?
if char == '\\' {
if peekMatch(i, "&lt;", runes) {
msg += "&"
i++
}
} else if char == '&' && peekMatch(i, "lt;", runes) {
var ok bool
i, ok = tryStepForward(i, 4, runes)
if !ok {
msg += "&lt;"
break
}
char := runes[i]
if int(char) >= len(allowedTags) {
//fmt.Println("sentinel char out of bounds")
msg += "&"
i -= 4
continue
}
var closeTag bool
if char == '/' {
//fmt.Println("found close tag")
i, ok = tryStepForward(i, 1, runes)
if !ok {
msg += "&lt;/"
break
}
char = runes[i]
closeTag = true
}
tags := allowedTags[char]
if len(tags) == 0 {
//fmt.Println("couldn't find char in allowedTags")
if closeTag {
//msg += "&lt;/"
msg += "&"
i -= 5
} else {
msg += "&"
i -= 4
}
continue
}
// TODO: Scan through tags and make sure the suffix is present to reduce the number of false positives which hit the loop below
//fmt.Printf("tags: %+v\n", tags)
var newI = -1
var out string
toActionList := tagToAction[char]
for _, toAction := range toActionList {
// TODO: Optimise this, maybe with goto or a function call to avoid scanning the text twice?
if (toAction.PartialMode && !closeTag && peekMatch(i, toAction.Suffix, runes)) || peekMatch(i, toAction.Suffix+"&gt;", runes) {
newI, out = toAction.Do(toAction, !closeTag, i, runes)
if newI != -1 {
i = newI
} else if out != "" {
i += len(toAction.Suffix + "&gt;")
}
break
}
}
if out == "" {
msg += "&"
if closeTag {
i -= 5
} else {
i -= 4
}
} else if out != " " {
msg += out
}
} else if char == '@' && (i == 0 || runes[i-1] < 33) {
// TODO: Handle usernames containing spaces, maybe in the front-end with AJAX
// Do not mention-ify ridiculously long things
var ok bool
i, ok = tryStepForward(i, 1, runes)
if !ok {
msg += "@"
continue
}
start := i
for j := 0; i < len(runes) && j < Config.MaxUsernameLength; j++ {
cchar := runes[i]
if cchar < 33 {
break
}
i++
}
username := string(runes[start:i])
if username == "" {
msg += "@"
i = start - 1
continue
}
user, err := Users.GetByName(username)
if err != nil {
if err != ErrNoRows {
LogError(err)
}
msg += "@"
i = start - 1
continue
}
msg += "@" + strconv.Itoa(user.ID)
i--
} else {
msg += string(char)
}
}
for _, actionList := range tagToAction {
for _, toAction := range actionList {
if toAction.Depth > 0 {
for ; toAction.Depth > 0; toAction.Depth-- {
_, out := toAction.Do(toAction, false, len(runes), runes)
if out != "" {
msg += out
}
}
}
}
}
return strings.TrimSpace(shortcodeToUnicode(msg))
}
// TODO: Test this
// TODO: Use this elsewhere in the parser?
func peek(cur int, skip int, runes []rune) rune {
if (cur + skip) < len(runes) {
return runes[cur+skip]
}
return 0 // null byte
}
// TODO: Test this
func peekMatch(cur int, phrase string, runes []rune) bool {
if cur+len(phrase) > len(runes) {
return false
}
for i, char := range phrase {
if cur+i+1 >= len(runes) {
return false
}
if runes[cur+i+1] != char {
return false
}
}
return true
}
// ! Not concurrency safe
func AddHashLinkType(prefix string, handler func(*strings.Builder, string, *int)) {
// There can only be one hash link type starting with a specific character at the moment
hashType := hashLinkTypes[prefix[0]]
if hashType != "" {
return
}
hashLinkMap[prefix] = handler
hashLinkTypes[prefix[0]] = prefix
}
func writeURL(sb *strings.Builder, url string, label string) {
sb.Write(URLOpen)
sb.WriteString(url)
sb.Write(URLOpen2)
sb.WriteString(label)
sb.Write(URLClose)
}
var hashLinkTypes = []string{'t': "tid-", 'r': "rid-", 'f': "fid-"}
var hashLinkMap = map[string]func(*strings.Builder, string, *int){
"tid-": func(sb *strings.Builder, msg string, i *int) {
tid, intLen := CoerceIntString(msg[*i:])
*i += intLen
topic, err := Topics.Get(tid)
if err != nil || !Forums.Exists(topic.ParentID) {
sb.Write(InvalidTopic)
return
}
writeURL(sb, BuildTopicURL("", tid), "#tid-"+strconv.Itoa(tid))
},
"rid-": func(sb *strings.Builder, msg string, i *int) {
rid, intLen := CoerceIntString(msg[*i:])
*i += intLen
topic, err := TopicByReplyID(rid)
if err != nil || !Forums.Exists(topic.ParentID) {
sb.Write(InvalidTopic)
return
}
writeURL(sb, BuildTopicURL("", topic.ID), "#rid-"+strconv.Itoa(rid))
},
"fid-": func(sb *strings.Builder, msg string, i *int) {
fid, intLen := CoerceIntString(msg[*i:])
*i += intLen
if !Forums.Exists(fid) {
sb.Write(InvalidForum)
return
}
writeURL(sb, BuildForumURL("", fid), "#fid-"+strconv.Itoa(fid))
},
// TODO: Forum Shortcode Link
}
// TODO: Write a test for this
// TODO: We need a lot more hooks here. E.g. To add custom media types and handlers.
// TODO: Use templates to reduce the amount of boilerplate?
func ParseMessage(msg string, sectionID int, sectionType string /*, user User*/) string {
// TODO: Word boundary detection for these to avoid mangling code
msg = strings.Replace(msg, ":)", "😀", -1)
msg = strings.Replace(msg, ":(", "😞", -1)
msg = strings.Replace(msg, ":D", "😃", -1)
msg = strings.Replace(msg, ":P", "😛", -1)
msg = strings.Replace(msg, ":O", "😲", -1)
msg = strings.Replace(msg, ":p", "😛", -1)
msg = strings.Replace(msg, ":o", "😲", -1)
msg = strings.Replace(msg, ";)", "😉", -1)
// Word filter list. E.g. Swear words and other things the admins don't like
wordFilters, err := WordFilters.GetAll()
if err != nil {
LogError(err)
return ""
}
for _, filter := range wordFilters {
msg = strings.Replace(msg, filter.Find, filter.Replacement, -1)
}
msg += " "
// Search for URLs, mentions and hashlinks in the messages...
var sb strings.Builder
var lastItem = 0
var i = 0
for ; len(msg) > (i + 1); i++ {
if (i == 0 && (msg[0] > 32)) || ((msg[i] < 33) && (msg[i+1] > 32)) {
if (i != 0) || msg[i] < 33 {
i++
}
if msg[i] == '#' {
hashType := hashLinkTypes[msg[i+1]]
if hashType == "" {
continue
}
if msg[i+1:len(hashType)+1] == hashType {
sb.WriteString(msg[lastItem:i])
i += len(hashType) + 1
hashLinkMap[hashType](&sb, msg, &i)
lastItem = i
}
i--
} else if msg[i] == '@' {
sb.WriteString(msg[lastItem:i])
i++
start := i
uid, intLen := CoerceIntString(msg[start:])
i += intLen
menUser, err := Users.Get(uid)
if err != nil {
sb.Write(InvalidProfile)
lastItem = i
continue
}
sb.Write(URLOpen)
sb.WriteString(menUser.Link)
sb.Write(bytesSinglequote)
sb.Write(urlMention)
sb.Write(bytesGreaterthan)
sb.WriteString("@" + menUser.Name)
sb.Write(URLClose)
lastItem = i
i--
} else if msg[i] == 'h' || msg[i] == 'f' || msg[i] == 'g' || msg[i] == '/' {
if msg[i+1] == 't' && msg[i+2] == 't' && msg[i+3] == 'p' {
if msg[i+4] == 's' && msg[i+5] == ':' && msg[i+6] == '/' {
// Do nothing
} else if msg[i+4] == ':' && msg[i+5] == '/' {
// Do nothing
} else {
continue
}
} else if msg[i+1] == 't' && msg[i+2] == 'p' && msg[i+3] == ':' && msg[i+4] == '/' {
// Do nothing
} else if msg[i+1] == 'i' && msg[i+2] == 't' && msg[i+3] == ':' && msg[i+4] == '/' {
// Do nothing
} else if msg[i+1] == '/' {
// Do nothing
} else {
continue
}
sb.WriteString(msg[lastItem:i])
urlLen := PartialURLStringLen(msg[i:])
if msg[i+urlLen] > 32 { // space and invisibles
sb.Write(InvalidURL)
i += urlLen
continue
}
media, ok := parseMediaString(msg[i : i+urlLen])
if !ok {
sb.Write(InvalidURL)
i += urlLen
continue
}
var addImage = func(url string) {
sb.Write(imageOpen)
sb.WriteString(url)
sb.Write(imageOpen2)
sb.WriteString(url)
sb.Write(imageClose)
i += urlLen
lastItem = i
}
// TODO: Reduce the amount of code duplication
if media.Type == "attach" {
addImage(media.URL + "?sectionID=" + strconv.Itoa(sectionID) + "&amp;sectionType=" + sectionType)
continue
} else if media.Type == "image" {
addImage(media.URL)
continue
} else if media.Type == "raw" {
sb.WriteString(media.Body)
i += urlLen
lastItem = i
continue
} else if media.Type != "" {
sb.Write(unknownMedia)
i += urlLen
continue
}
sb.Write(URLOpen)
sb.WriteString(msg[i : i+urlLen])
sb.Write(URLOpen2)
sb.WriteString(msg[i : i+urlLen])
sb.Write(URLClose)
i += urlLen
lastItem = i
i--
}
}
}
if lastItem != i && sb.Len() != 0 {
calclen := len(msg) - 10
if calclen <= lastItem {
calclen = lastItem
}
sb.WriteString(msg[lastItem:calclen])
msg = sb.String()
}
msg = strings.Replace(msg, "\n", "<br>", -1)
msg = GetHookTable().Sshook("parse_assign", msg)
return msg
}
// 6, 7, 8, 6, 2, 7
// ftp://, http://, https:// git://, //, mailto: (not a URL, just here for length comparison purposes)
// TODO: Write a test for this
func validateURLString(data string) bool {
datalen := len(data)
i := 0
if datalen >= 6 {
if data[0:6] == "ftp://" || data[0:6] == "git://" {
i = 6
} else if datalen >= 7 && data[0:7] == "http://" {
i = 7
} else if datalen >= 8 && data[0:8] == "https://" {
i = 8
}
} else if datalen >= 2 && data[0] == '/' && data[1] == '/' {
i = 2
}
// ? - There should only be one : and that's only if the URL is on a non-standard port. Same for ?s.
for ; datalen > i; i++ {
if data[i] != '\\' && data[i] != '_' && data[i] != ':' && data[i] != '?' && data[i] != '&' && data[i] != '=' && data[i] != ';' && data[i] != '@' && data[i] != '#' && !(data[i] > 44 && data[i] < 58) && !(data[i] > 64 && data[i] < 91) && !(data[i] > 96 && data[i] < 123) {
return false
}
}
return true
}
// TODO: Write a test for this
func validatedURLBytes(data []byte) (url []byte) {
datalen := len(data)
i := 0
if datalen >= 6 {
if bytes.Equal(data[0:6], []byte("ftp://")) || bytes.Equal(data[0:6], []byte("git://")) {
i = 6
} else if datalen >= 7 && bytes.Equal(data[0:7], httpProtBytes) {
i = 7
} else if datalen >= 8 && bytes.Equal(data[0:8], []byte("https://")) {
i = 8
}
} else if datalen >= 2 && data[0] == '/' && data[1] == '/' {
i = 2
}
// ? - There should only be one : and that's only if the URL is on a non-standard port. Same for ?s.
for ; datalen > i; i++ {
if data[i] != '\\' && data[i] != '_' && data[i] != ':' && data[i] != '?' && data[i] != '&' && data[i] != '=' && data[i] != ';' && data[i] != '@' && data[i] != '#' && !(data[i] > 44 && data[i] < 58) && !(data[i] > 64 && data[i] < 91) && !(data[i] > 96 && data[i] < 123) {
return InvalidURL
}
}
url = append(url, data...)
return url
}
// TODO: Write a test for this
func PartialURLString(data string) (url []byte) {
datalen := len(data)
i := 0
end := datalen - 1
if datalen >= 6 {
if data[0:6] == "ftp://" || data[0:6] == "git://" {
i = 6
} else if datalen >= 7 && data[0:7] == "http://" {
i = 7
} else if datalen >= 8 && data[0:8] == "https://" {
i = 8
}
} else if datalen >= 2 && data[0] == '/' && data[1] == '/' {
i = 2
}
// ? - There should only be one : and that's only if the URL is on a non-standard port. Same for ?s.
for ; end >= i; i++ {
if data[i] != '\\' && data[i] != '_' && data[i] != ':' && data[i] != '?' && data[i] != '&' && data[i] != '=' && data[i] != ';' && data[i] != '@' && data[i] != '#' && !(data[i] > 44 && data[i] < 58) && !(data[i] > 64 && data[i] < 91) && !(data[i] > 96 && data[i] < 123) {
end = i
}
}
url = append(url, []byte(data[0:end])...)
return url
}
// TODO: Write a test for this
func PartialURLStringLen(data string) int {
datalen := len(data)
i := 0
if datalen >= 6 {
//log.Print(string(data[0:5]))
if data[0:6] == "ftp://" || data[0:6] == "git://" {
i = 6
} else if datalen >= 7 && data[0:7] == "http://" {
i = 7
} else if datalen >= 8 && data[0:8] == "https://" {
i = 8
}
} else if datalen >= 2 && data[0] == '/' && data[1] == '/' {
i = 2
}
// ? - There should only be one : and that's only if the URL is on a non-standard port. Same for ?s.
for ; datalen > i; i++ {
if data[i] != '\\' && data[i] != '_' && data[i] != ':' && data[i] != '?' && data[i] != '&' && data[i] != '=' && data[i] != ';' && data[i] != '@' && data[i] != '#' && !(data[i] > 44 && data[i] < 58) && !(data[i] > 64 && data[i] < 91) && !(data[i] > 96 && data[i] < 123) {
//log.Print("Bad Character: ", data[i])
return i
}
}
//log.Print("Data Length: ",datalen)
return datalen
}
type MediaEmbed struct {
Type string //image
URL string
Body string
}
// TODO: Write a test for this
func parseMediaString(data string) (media MediaEmbed, ok bool) {
if !validateURLString(data) {
return media, false
}
url, err := url.Parse(data)
if err != nil {
return media, false
}
hostname := url.Hostname()
scheme := url.Scheme
port := url.Port()
query := url.Query()
// TODO: Treat 127.0.0.1 and [::1] as localhost too
var samesite = hostname == "localhost" || hostname == Site.URL
if samesite {
hostname = strings.Split(Site.URL, ":")[0]
// ?- Test this as I'm not sure it'll do what it should. If someone's running SSL on port 80 or non-SSL on port 443 then... Well... They're in far worse trouble than this...
port = Site.Port
if Site.EnableSsl {
scheme = "https"
}
}
if scheme == "" {
scheme = "http"
}
path := url.EscapedPath()
pathFrags := strings.Split(path, "/")
if len(pathFrags) >= 2 {
if samesite && pathFrags[1] == "attachs" && (scheme == "http" || scheme == "https") {
media.Type = "attach"
var sport string
// ? - Assumes the sysadmin hasn't mixed up the two standard ports
if port != "443" && port != "80" {
sport = ":" + port
}
media.URL = scheme + "://" + hostname + sport + path
return media, true
}
}
// ? - I don't think this hostname will hit every YT domain
// TODO: Make this a more customisable handler rather than hard-coding it in here
if hostname == "www.youtube.com" && path == "/watch" {
video, ok := query["v"]
if ok && len(video) >= 1 && video[0] != "" {
media.Type = "raw"
// TODO: Filter the URL to make sure no nasties end up in there
media.Body = "<iframe class='postIframe' src='https://www.youtube-nocookie.com/embed/" + video[0] + "' frameborder='0' allowfullscreen></iframe>"
return media, true
}
}
lastFrag := pathFrags[len(pathFrags)-1]
if lastFrag != "" {
// TODO: Write a function for getting the file extension of a string
extarr := strings.Split(lastFrag, ".")
if len(extarr) >= 2 {
ext := extarr[len(extarr)-1]
if ImageFileExts.Contains(ext) {
media.Type = "image"
var sport string
if port != "443" && port != "80" {
sport = ":" + port
}
media.URL = scheme + "://" + hostname + sport + path
return media, true
}
}
}
return media, true
}
// TODO: Write a test for this
func CoerceIntString(data string) (res int, length int) {
if !(data[0] > 47 && data[0] < 58) {
return 0, 1
}
i := 0
for ; len(data) > i; i++ {
if !(data[i] > 47 && data[i] < 58) {
conv, err := strconv.Atoi(data[0:i])
if err != nil {
return 0, i
}
return conv, i
}
}
conv, err := strconv.Atoi(data)
if err != nil {
return 0, i
}
return conv, i
}
// TODO: Write tests for this
The Search and Filter Widget is now partly implemented. Just Search to go in the basic implementation. Added AJAX Pagination for the Topic List and Forum Page. A new log file pair is now created every-time Gosora starts up. Added proper per-theme template overrides. Added EasyJSON to make JSON serialisation faster. Moved a bit of boilerplate into paginator.html Improved paginator.html with a richer template with first, last and symbols instead of text. Phased out direct access to Templates.ExecuteTemplate across the software. Fixed the Live Topic List so it should work again. Added MicroAvatar to WsJSONUser for topic list JSON requests. An instance of the plugin is now passed to plugin handlers rather than having the plugins manipulate the globals directly. Added the pre_render_panel_forum_edit and pre_render_panel_forum_edit_perms hooks to replace pre_render_panel_edit_forum. Renamed the pre_render_panel_edit_user hook to pre_render_panel_user_edit Reduced the amount of noise from fsnotify. Added RawPrepare() to qgen.Accumulator. Added a temporary phrase whitelist to the phrase endpoint. Moved the location of the zone data assignments in the topic list to reduce the chances of security issues in the future. Changed the signature of routes/panel/renderTemplate() requiring some changes across the panel routes. Removed bits of boilerplate in some of the panel routes with renderTemplate() Added a BenchmarkTopicsGuestJSRouteParallelWithRouter benchmark. Removed a fair bit of boilerplate for each page struct by generating a couple of interface casts for each template file instead. Added the profile_comments_row_alt template. Added the topics_quick_topic template to reuse part of the quick topic logic for both the topic list and forum page. Tweaked the CSS for the Online Users Widget. Tweaked the CSS for Widgets in every theme with a sidebar. Refactored the template initialisers to hopefully reduce the amount of boilerplate and make things easier to maintain and follow. Add genIntTmpl in the template initialiser file to reduce the amount of boilerplate needed for the fallback template bindings. Removed the topics_head phrase. Moved the paginator_ phrases into the paginator. namespace and renamed them accordingly. Added the paginator.first_page phrase. Added the paginator.first_page_aria phrase. Added the paginator.last_page phrase. Added the paginator.last_page_aria phrase. Added the panel_forum_delete_are_you_sure phrase. Fixed a data race in LogWarning()
2019-02-10 05:52:26 +00:00
// Make sure we reflect changes to this in the JS port in /public/global.js
func Paginate(count int, perPage int, maxPages int) []int {
if count < perPage {
return []int{1}
}
var page int
var out []int
for current := 0; current < count; current += perPage {
page++
out = append(out, page)
if len(out) >= maxPages {
break
}
}
return out
}
// TODO: Write tests for this
The Search and Filter Widget is now partly implemented. Just Search to go in the basic implementation. Added AJAX Pagination for the Topic List and Forum Page. A new log file pair is now created every-time Gosora starts up. Added proper per-theme template overrides. Added EasyJSON to make JSON serialisation faster. Moved a bit of boilerplate into paginator.html Improved paginator.html with a richer template with first, last and symbols instead of text. Phased out direct access to Templates.ExecuteTemplate across the software. Fixed the Live Topic List so it should work again. Added MicroAvatar to WsJSONUser for topic list JSON requests. An instance of the plugin is now passed to plugin handlers rather than having the plugins manipulate the globals directly. Added the pre_render_panel_forum_edit and pre_render_panel_forum_edit_perms hooks to replace pre_render_panel_edit_forum. Renamed the pre_render_panel_edit_user hook to pre_render_panel_user_edit Reduced the amount of noise from fsnotify. Added RawPrepare() to qgen.Accumulator. Added a temporary phrase whitelist to the phrase endpoint. Moved the location of the zone data assignments in the topic list to reduce the chances of security issues in the future. Changed the signature of routes/panel/renderTemplate() requiring some changes across the panel routes. Removed bits of boilerplate in some of the panel routes with renderTemplate() Added a BenchmarkTopicsGuestJSRouteParallelWithRouter benchmark. Removed a fair bit of boilerplate for each page struct by generating a couple of interface casts for each template file instead. Added the profile_comments_row_alt template. Added the topics_quick_topic template to reuse part of the quick topic logic for both the topic list and forum page. Tweaked the CSS for the Online Users Widget. Tweaked the CSS for Widgets in every theme with a sidebar. Refactored the template initialisers to hopefully reduce the amount of boilerplate and make things easier to maintain and follow. Add genIntTmpl in the template initialiser file to reduce the amount of boilerplate needed for the fallback template bindings. Removed the topics_head phrase. Moved the paginator_ phrases into the paginator. namespace and renamed them accordingly. Added the paginator.first_page phrase. Added the paginator.first_page_aria phrase. Added the paginator.last_page phrase. Added the paginator.last_page_aria phrase. Added the panel_forum_delete_are_you_sure phrase. Fixed a data race in LogWarning()
2019-02-10 05:52:26 +00:00
// Make sure we reflect changes to this in the JS port in /public/global.js
func PageOffset(count int, page int, perPage int) (int, int, int) {
var offset int
lastPage := LastPage(count, perPage)
if page > 1 {
offset = (perPage * page) - perPage
} else if page == -1 {
page = lastPage
offset = (perPage * page) - perPage
} else {
page = 1
}
// ? - This has been commented out as it created a bug in the user manager where the first user on a page wouldn't be accessible
// We don't want the offset to overflow the slices, if everything's in memory
/*if offset >= (count - 1) {
offset = 0
}*/
return offset, page, lastPage
}
// TODO: Write tests for this
The Search and Filter Widget is now partly implemented. Just Search to go in the basic implementation. Added AJAX Pagination for the Topic List and Forum Page. A new log file pair is now created every-time Gosora starts up. Added proper per-theme template overrides. Added EasyJSON to make JSON serialisation faster. Moved a bit of boilerplate into paginator.html Improved paginator.html with a richer template with first, last and symbols instead of text. Phased out direct access to Templates.ExecuteTemplate across the software. Fixed the Live Topic List so it should work again. Added MicroAvatar to WsJSONUser for topic list JSON requests. An instance of the plugin is now passed to plugin handlers rather than having the plugins manipulate the globals directly. Added the pre_render_panel_forum_edit and pre_render_panel_forum_edit_perms hooks to replace pre_render_panel_edit_forum. Renamed the pre_render_panel_edit_user hook to pre_render_panel_user_edit Reduced the amount of noise from fsnotify. Added RawPrepare() to qgen.Accumulator. Added a temporary phrase whitelist to the phrase endpoint. Moved the location of the zone data assignments in the topic list to reduce the chances of security issues in the future. Changed the signature of routes/panel/renderTemplate() requiring some changes across the panel routes. Removed bits of boilerplate in some of the panel routes with renderTemplate() Added a BenchmarkTopicsGuestJSRouteParallelWithRouter benchmark. Removed a fair bit of boilerplate for each page struct by generating a couple of interface casts for each template file instead. Added the profile_comments_row_alt template. Added the topics_quick_topic template to reuse part of the quick topic logic for both the topic list and forum page. Tweaked the CSS for the Online Users Widget. Tweaked the CSS for Widgets in every theme with a sidebar. Refactored the template initialisers to hopefully reduce the amount of boilerplate and make things easier to maintain and follow. Add genIntTmpl in the template initialiser file to reduce the amount of boilerplate needed for the fallback template bindings. Removed the topics_head phrase. Moved the paginator_ phrases into the paginator. namespace and renamed them accordingly. Added the paginator.first_page phrase. Added the paginator.first_page_aria phrase. Added the paginator.last_page phrase. Added the paginator.last_page_aria phrase. Added the panel_forum_delete_are_you_sure phrase. Fixed a data race in LogWarning()
2019-02-10 05:52:26 +00:00
// Make sure we reflect changes to this in the JS port in /public/global.js
func LastPage(count int, perPage int) int {
return (count / perPage) + 1
}