4chan-x/src/classes/Post.coffee

254 lines
7.9 KiB
CoffeeScript

class Post
toString: -> @ID
constructor: (root, @thread, @board) ->
<% if (readJSON('/.tests_enabled')) { %>
@normalizedOriginal = Build.Test.normalize root
<% } %>
@ID = +root.id[2..]
@fullID = "#{@board}.#{@ID}"
@context = @
root.dataset.fullID = @fullID
@nodes = @parseNodes root
unless (@isReply = $.hasClass @nodes.post, 'reply')
@thread.OP = @
@thread.isArchived = !!$ '.archivedIcon', @nodes.info
@thread.isSticky = !!$ '.stickyIcon', @nodes.info
@thread.isClosed = @thread.isArchived or !!$ '.closedIcon', @nodes.info
@thread.kill() if @thread.isArchived
@info =
nameBlock: if Conf['Anonymize'] then 'Anonymous' else @nodes.nameBlock.textContent.trim()
subject: @nodes.subject?.textContent or undefined
name: @nodes.name?.textContent
tripcode: @nodes.tripcode?.textContent
uniqueID: @nodes.uniqueID?.firstElementChild.textContent
capcode: @nodes.capcode?.textContent.replace '## ', ''
flagCode: @nodes.flag?.className.match(/flag-(\w+)/)?[1].toUpperCase()
flag: @nodes.flag?.title
date: if @nodes.date then new Date(@nodes.date.dataset.utc * 1000)
@parseComment()
@parseQuotes()
@parseFile()
@isDead = false
@isHidden = false
@clones = []
<% if (readJSON('/.tests_enabled')) { %>
return if arguments[3] is 'forBuildTest'
<% } %>
if g.posts[@fullID]
@isRebuilt = true
@clones = g.posts[@fullID].clones
clone.origin = @ for clone in @clones
@board.posts.push @ID, @
@thread.posts.push @ID, @
g.posts.push @fullID, @
parseNodes: (root) ->
post = $ '.post', root
info = $ '.postInfo', post
nodes =
root: root
post: post
info: info
subject: $ '.subject', info
name: $ '.name', info
email: $ '.useremail', info
tripcode: $ '.postertrip', info
uniqueID: $ '.posteruid', info
capcode: $ '.capcode.hand', info
flag: $ '.flag, .countryFlag', info
date: $ '.dateTime', info
nameBlock: $ '.nameBlock', info
quote: $ '.postNum > a:nth-of-type(2)', info
reply: $ '.replylink', info
comment: $ '.postMessage', post
links: []
quotelinks: []
archivelinks: []
# XXX Edge invalidates HTMLCollections when an ancestor node is inserted into another node.
# https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/7560353/
if $.engine is 'edge'
Object.defineProperty nodes, 'backlinks',
configurable: true
enumerable: true
get: -> info.getElementsByClassName 'backlink'
else
nodes.backlinks = info.getElementsByClassName 'backlink'
nodes
parseComment: ->
# Merge text nodes and remove empty ones.
@nodes.comment.normalize()
# Get the comment's text.
# <br> -> \n
# Remove:
# 'Comment too long'...
# EXIF data. (/p/)
# Rolls. (/tg/)
# Fortunes. (/s4s/)
bq = @nodes.comment.cloneNode true
for node in $$ '.abbr + br, .exif, b, .fortune', bq
$.rm node
if abbr = $ '.abbr', bq
$.rm abbr
@info.comment = @nodesToText bq
if abbr
@info.comment = @info.comment.replace /\n\n$/, ''
# Hide spoilers.
# Remove:
# Preceding and following new lines.
# Trailing spaces.
commentDisplay = @info.comment
unless Conf['Remove Spoilers'] or Conf['Reveal Spoilers']
spoilers = $$ 's', bq
if spoilers.length
for node in spoilers
$.replace node, $.tn '[spoiler]'
commentDisplay = @nodesToText bq
@info.commentDisplay = commentDisplay.trim().replace /\s+$/gm, ''
nodesToText: (bq) ->
text = ""
nodes = $.X './/br|.//text()', bq
i = 0
while node = nodes.snapshotItem i++
text += node.data or '\n'
text
parseQuotes: ->
@quotes = []
# XXX https://github.com/4chan/4chan-JS/issues/77
# 4chan currently creates quote links inside [code] tags; ignore them
for quotelink in $$ ':not(pre) > .quotelink', @nodes.comment
@parseQuote quotelink
return
parseQuote: (quotelink) ->
# Only add quotes that link to posts on an imageboard.
# Don't add:
# - board links. (>>>/b/)
# - catalog links. (>>>/b/catalog or >>>/b/search)
# - rules links. (>>>/a/rules)
# - text-board quotelinks. (>>>/img/1234)
match = quotelink.href.match ///
^https?://boards\.4chan\.org/+
([^/]+) # boardID
/+(?:res|thread)/+\d+(?:/[^#]*)?#p
(\d+) # postID
$
///
return unless match or (@isClone and quotelink.dataset.postID) # normal or resurrected quote
@nodes.quotelinks.push quotelink
return if @isClone
# ES6 Set when?
fullID = "#{match[1]}.#{match[2]}"
@quotes.push fullID unless fullID in @quotes
parseFile: ->
return unless fileEl = $ '.file', @nodes.post
return unless link = $ '.fileText > a, .fileText-original > a', fileEl
return unless info = link.nextSibling?.textContent.match /\(([\d.]+ [KMG]?B).*\)/
fileText = fileEl.firstElementChild
@file =
text: fileText
link: link
url: link.href
name: fileText.title or link.title or link.textContent
size: info[1]
isImage: /(jpg|png|gif)$/i.test link.href
isVideo: /webm$/i.test link.href
dimensions: info[0].match(/\d+x\d+/)?[0]
tag: info[0].match(/,[^,]*, ([a-z]+)\)/i)?[1]
size = +@file.size.match(/[\d.]+/)[0]
unit = ['B', 'KB', 'MB', 'GB'].indexOf @file.size.match(/\w+$/)[0]
size *= 1024 while unit-- > 0
@file.sizeInBytes = size
if (thumb = $ '.fileThumb > [data-md5]', fileEl)
$.extend @file,
thumb: thumb
thumbURL: if m = link.href.match(/\d+(?=\.\w+$)/) then "#{location.protocol}//i.4cdn.org/#{@board}/#{m[0]}s.jpg"
MD5: thumb.dataset.md5
isSpoiler: $.hasClass thumb.parentNode, 'imgspoiler'
kill: (file) ->
if file
return if @isDead or @file.isDead
@file.isDead = true
$.addClass @nodes.root, 'deleted-file'
else
return if @isDead
@isDead = true
$.rmClass @nodes.root, 'deleted-file'
$.addClass @nodes.root, 'deleted-post'
unless (strong = $ 'strong.warning', @nodes.info)
strong = $.el 'strong',
className: 'warning'
$.after $('input', @nodes.info), strong
strong.textContent = if file then '[File deleted]' else '[Deleted]'
return if @isClone
for clone in @clones
clone.kill file
return if file
# Get quotelinks/backlinks to this post
# and paint them (Dead).
for quotelink in Get.allQuotelinksLinkingTo @ when not $.hasClass quotelink, 'deadlink'
quotelink.textContent = quotelink.textContent + '\u00A0(Dead)'
$.addClass quotelink, 'deadlink'
return
# XXX Workaround for 4chan's racing condition
# giving us false-positive dead posts.
resurrect: ->
@isDead = false
$.rmClass @nodes.root, 'deleted-post'
strong = $ 'strong.warning', @nodes.info
# no false-positive files
if @file and @file.isDead
strong.textContent = '[File deleted]'
else
$.rm strong
return if @isClone
for clone in @clones
clone.resurrect()
for quotelink in Get.allQuotelinksLinkingTo @ when $.hasClass quotelink, 'deadlink'
quotelink.textContent = quotelink.textContent.replace '\u00A0(Dead)', ''
$.rmClass quotelink, 'deadlink'
return
collect: ->
g.posts.rm @fullID
@thread.posts.rm @
@board.posts.rm @
addClone: (context, contractThumb) ->
new Post.Clone @, context, contractThumb
rmClone: (index) ->
@clones.splice index, 1
for clone in @clones[index..]
clone.nodes.root.dataset.clone = index++
return
return Post