4chan-x/src/Filtering/Filter.coffee

274 lines
7.2 KiB
CoffeeScript
Executable File

Filter =
filters: {}
init: ->
return if g.VIEW is 'catalog' or !Conf['Filter']
unless Conf['Filtered Backlinks']
$.addClass doc, 'hide-backlinks'
for key of Config.filter
@filters[key] = []
for line in Conf[key].split '\n'
continue if line[0] is '#'
unless regexp = line.match /\/(.+)\/(\w*)/
continue
# Don't mix up filter flags with the regular expression.
filter = line.replace regexp[0], ''
# Do not add this filter to the list if it's not a global one
# and it's not specifically applicable to the current board.
# Defaults to global.
boards = filter.match(/boards:([^;]+)/)?[1].toLowerCase() or 'global'
if boards isnt 'global' and g.BOARD.ID not in boards.split ','
continue
if key in ['uniqueID', 'MD5']
# MD5 filter will use strings instead of regular expressions.
regexp = regexp[1]
else
try
# Please, don't write silly regular expressions.
regexp = RegExp regexp[1], regexp[2]
catch err
# I warned you, bro.
new Notice 'warning', [
$.tn "Invalid #{key} filter:"
$.el 'br'
$.tn line
$.el 'br'
$.tn err.message
], 60
continue
# Filter OPs along with their threads, replies only, or both.
# Defaults to both.
op = filter.match(/[^t]op:(yes|no|only)/)?[1] or 'yes'
# Overrule the `Show Stubs` setting.
# Defaults to stub showing.
stub = switch filter.match(/stub:(yes|no)/)?[1]
when 'yes'
true
when 'no'
false
else
Conf['Stubs']
# Highlight the post, or hide it.
# If not specified, the highlight class will be filter-highlight.
# Defaults to post hiding.
if hl = /highlight/.test filter
hl = filter.match(/highlight:(\w+)/)?[1] or 'filter-highlight'
# Put highlighted OP's thread on top of the board page or not.
# Defaults to on top.
top = filter.match(/top:(yes|no)/)?[1] or 'yes'
top = top is 'yes' # Turn it into a boolean
@filters[key].push @createFilter regexp, op, stub, hl, top
# Only execute filter types that contain valid filters.
unless @filters[key].length
delete @filters[key]
return unless Object.keys(@filters).length
Post.callbacks.push
name: 'Filter'
cb: @node
createFilter: (regexp, op, stub, hl, top) ->
test =
if typeof regexp is 'string'
# MD5 checking
(value) -> regexp is value
else
(value) -> regexp.test value
settings =
hide: !hl
stub: stub
class: hl
top: top
(value, isReply) ->
if isReply and op is 'only' or !isReply and op is 'no'
return false
unless test value
return false
settings
node: ->
return if @isClone or @isFetchedQuote
for key of Filter.filters
value = Filter[key] @
# Continue if there's nothing to filter (no tripcode for example).
continue if value is false
for filter in Filter.filters[key]
unless result = filter value, @isReply
continue
# Hide
if result.hide
if @isReply
PostHiding.hide @, result.stub
else if g.VIEW is 'index'
ThreadHiding.hide @thread, result.stub
else
continue
return
# Highlight
$.addClass @nodes.root, result.class
unless @highlights and result.class in @highlights
(@highlights or= []).push result.class
if !@isReply and result.top
@thread.isOnTop = true
name: (post) ->
if 'name' of post.info
return post.info.name
false
uniqueID: (post) ->
if 'uniqueID' of post.info
return post.info.uniqueID
false
tripcode: (post) ->
if 'tripcode' of post.info
return post.info.tripcode
false
capcode: (post) ->
if 'capcode' of post.info
return post.info.capcode
false
subject: (post) ->
if 'subject' of post.info
return post.info.subject or false
false
comment: (post) ->
if 'comment' of post.info
return post.info.comment
false
flag: (post) ->
if 'flag' of post.info
return post.info.flag
false
filename: (post) ->
if post.file
return post.file.name
false
dimensions: (post) ->
{file} = post
if file and (file.isImage or file.isVideo)
return file.dimensions
false
filesize: (post) ->
if post.file
return post.file.size
false
MD5: (post) ->
if post.file
return post.file.MD5
false
menu:
init: ->
return if g.VIEW is 'catalog' or !Conf['Menu'] or !Conf['Filter']
div = $.el 'div',
textContent: 'Filter'
entry =
el: div
order: 50
open: (post) ->
Filter.menu.post = post
true
subEntries: []
for type in [
['Name', 'name']
['Unique ID', 'uniqueID']
['Tripcode', 'tripcode']
['Capcode', 'capcode']
['Subject', 'subject']
['Comment', 'comment']
['Flag', 'flag']
['Filename', 'filename']
['Image dimensions', 'dimensions']
['Filesize', 'filesize']
['Image MD5', 'MD5']
]
# Add a sub entry for each filter type.
entry.subEntries.push Filter.menu.createSubEntry type[0], type[1]
Menu.menu.addEntry entry
createSubEntry: (text, type) ->
el = $.el 'a',
href: 'javascript:;'
textContent: text
el.dataset.type = type
$.on el, 'click', Filter.menu.makeFilter
return {
el: el
open: (post) ->
value = Filter[type] post
value isnt false
}
makeFilter: ->
{type} = @dataset
# Convert value -> regexp, unless type is MD5
value = Filter[type] Filter.menu.post
re = if type in ['uniqueID', 'MD5'] then value else value.replace ///
/
| \\
| \^
| \$
| \n
| \.
| \(
| \)
| \{
| \}
| \[
| \]
| \?
| \*
| \+
| \|
///g, (c) ->
if c is '\n'
'\\n'
else if c is '\\'
'\\\\'
else
"\\#{c}"
re = if type in ['uniqueID', 'MD5']
"/#{re}/"
else
"/^#{re}$/"
# Add a new line before the regexp unless the text is empty.
$.get type, Conf[type], (item) ->
save = item[type]
save =
if save
"#{save}\n#{re}"
else
re
$.set type, save
# Open the settings and display & focus the relevant filter textarea.
Settings.open 'Filter'
section = $ '.section-container'
select = $ 'select[name=filter]', section
select.value = type
Settings.selectFilter.call select
ta = $ 'textarea', section
tl = ta.textLength
ta.setSelectionRange tl, tl
ta.focus()