Move post fetching code into a class.

This commit is contained in:
ccd0 2015-01-02 23:30:19 -08:00
parent 511dbf0ffc
commit bacfbb4e64
5 changed files with 185 additions and 183 deletions

View File

@ -70,184 +70,3 @@ Get =
for script in $$ 'script:not([src])', d.head
return script.textContent if /\bcooldowns *=/.test script.textContent
''
postClone: (boardID, threadID, postID, root, context) ->
if post = g.posts["#{boardID}.#{postID}"]
Get.insert post, root, context
return
root.textContent = "Loading post No.#{postID}..."
if threadID
$.cache "//a.4cdn.org/#{boardID}/thread/#{threadID}.json", ->
Get.fetchedPost @, boardID, threadID, postID, root, context
else
Get.archivedPost boardID, postID, root, context
insert: (post, root, context) ->
# Stop here if the container has been removed while loading.
return unless root.parentNode
clone = post.addClone context, ($.hasClass root, 'dialog')
Main.callbackNodes Clone, [clone]
# Get rid of the side arrows.
{nodes} = clone
$.rmAll nodes.root
$.add nodes.root, nodes.post
$.rmAll root
$.add root, nodes.root
$.event 'PostsInserted'
fetchedPost: (req, boardID, threadID, postID, root, context) ->
# In case of multiple callbacks for the same request,
# don't parse the same original post more than once.
if post = g.posts["#{boardID}.#{postID}"]
Get.insert post, root, context
return
{status} = req
unless status in [200, 304]
# The thread can die by the time we check a quote.
unless Get.archivedPost boardID, postID, root, context
$.addClass root, 'warning'
root.textContent =
if status is 404
"Thread No.#{threadID} 404'd."
else
"Error #{req.statusText} (#{req.status})."
return
{posts} = req.response
Build.spoilerRange[boardID] = posts[0].custom_spoiler
for post in posts
break if post.no is postID # we found it!
if post.no isnt postID
# Cached requests can be stale and must be rechecked.
if req.cached
api = "//a.4cdn.org/#{boardID}/thread/#{threadID}.json"
$.cleanCache (url) -> url is api
$.cache api, ->
Get.fetchedPost @, boardID, threadID, postID, root, context
return
# The post can be deleted by the time we check a quote.
unless Get.archivedPost boardID, postID, root, context
$.addClass root, 'warning'
root.textContent = "Post No.#{postID} was not found."
return
board = g.boards[boardID] or
new Board boardID
thread = g.threads["#{boardID}.#{threadID}"] or
new Thread threadID, board
post = new Post Build.postFromObject(post, boardID), thread, board
post.isFetchedQuote = true
Main.callbackNodes Post, [post]
Get.insert post, root, context
archivedPost: (boardID, postID, root, context) ->
return false unless Conf['Resurrect Quotes']
return false unless url = Redirect.to 'post', {boardID, postID}
if /^https:\/\//.test(url) or location.protocol is 'http:'
$.cache url,
-> Get.parseArchivedPost @response, boardID, postID, root, context
,
responseType: 'json'
withCredentials: url.archive.withCredentials
return true
else if Conf['Except Archives from Encryption']
CrossOrigin.json url, (response) ->
{media} = response
if media then for key of media when /_link$/.test key
# Image/thumbnail URLs loaded over HTTP can be modified in transit.
# Require them to be from a known HTTP host so that no referrer is sent to them from an HTTPS page.
delete media[key] unless media[key]? and media[key].match(/^(http:\/\/[^\/]+\/)?/)[0] in url.archive.imagehosts
Get.parseArchivedPost response, boardID, postID, root, context
return true
return false
parseArchivedPost: (data, boardID, postID, root, context) ->
# In case of multiple callbacks for the same request,
# don't parse the same original post more than once.
if post = g.posts["#{boardID}.#{postID}"]
Get.insert post, root, context
return
if data.error
$.addClass root, 'warning'
root.textContent = data.error
return
# https://github.com/eksopl/fuuka/blob/master/Board/Yotsuba.pm#L413-452
# https://github.com/eksopl/asagi/blob/master/src/main/java/net/easymodo/asagi/Yotsuba.java#L109-138
comment = (data.comment or '').split /(\n|\[\/?(?:b|spoiler|code|moot|banned)\])/
comment = for text, i in comment
if i % 2 is 1
Get.archiveTags[text]
else
greentext = text[0] is '>'
text = text.replace /(\[\/?[a-z]+):lit(\])/, '$1$2'
text = for text2, j in text.split /(>>(?:>\/[a-z\d]+\/)?\d+)/g
if j % 2 is 1
<%= html('<span class="deadlink">${text2}</span>') %>
else
<%= html('${text2}') %>
text = <%= html('@{text}') %>
text = <%= html('<span class="quote">&{text}</span>') %> if greentext
text
comment = <%= html('@{comment}') %>
threadID = +data.thread_num
o =
# id
postID: postID
threadID: threadID
boardID: boardID
# info
name: data.name
capcode: switch data.capcode
when 'M' then 'mod'
when 'A' then 'admin'
when 'D' then 'developer'
tripcode: data.trip
uniqueID: data.poster_hash
email: data.email or ''
subject: data.title
flagCode: data.poster_country
flagName: data.poster_country_name
date: data.fourchan_date
dateUTC: data.timestamp
comment: comment
# file
if data.media?.media_filename
o.file =
name: data.media.media_filename
timestamp: data.media.media_orig
url: data.media.media_link or data.media.remote_media_link or
"//i.4cdn.org/#{boardID}/#{encodeURIComponent data.media[if boardID is 'f' then 'media_filename' else 'media_orig']}"
height: data.media.media_h
width: data.media.media_w
MD5: data.media.media_hash
size: data.media.media_size
turl: data.media.thumb_link or "//t.4cdn.org/#{boardID}/#{data.media.preview_orig}"
theight: data.media.preview_h
twidth: data.media.preview_w
isSpoiler: data.media.spoiler is '1'
o.file.tag = JSON.parse(data.media.exif).Tag if boardID is 'f'
board = g.boards[boardID] or
new Board boardID
thread = g.threads["#{boardID}.#{threadID}"] or
new Thread threadID, board
post = new Post Build.post(o), thread, board, {isArchived: true}
post.file.thumbURL = o.file.turl if post.file
post.isFetchedQuote = true
Main.callbackNodes Post, [post]
Get.insert post, root, context
archiveTags:
'\n': <%= html('<br>') %>
'[b]': <%= html('<b>') %>
'[/b]': <%= html('</b>') %>
'[spoiler]': <%= html('<s>') %>
'[/spoiler]': <%= html('</s>') %>
'[code]': <%= html('<pre class="prettyprint">') %>
'[/code]': <%= html('</pre>') %>
'[moot]': <%= html('<div style="padding:5px;margin-left:.5em;border-color:#faa;border:2px dashed rgba(255,0,0,.1);border-radius:2px">') %>
'[/moot]': <%= html('</div>') %>
'[banned]': <%= html('<strong style="color: red;">') %>
'[/banned]': <%= html('</strong>') %>

View File

@ -10,3 +10,4 @@
<%= grunt.file.read('src/General/lib/simpledict.class') %>
<%= grunt.file.read('src/General/lib/set.class') %>
<%= grunt.file.read('src/General/lib/connection.class') %>
<%= grunt.file.read('src/General/lib/fetcher.class') %>

View File

@ -0,0 +1,182 @@
class Fetcher
constructor: (@boardID, @threadID, @postID, @root, @context) ->
if post = g.posts["#{@boardID}.#{@postID}"]
@insert post
return
@root.textContent = "Loading post No.#{@postID}..."
if @threadID
$.cache "//a.4cdn.org/#{@boardID}/thread/#{@threadID}.json", do (self = @) -> ->
self.fetchedPost @
else
@archivedPost()
insert: (post) ->
# Stop here if the container has been removed while loading.
return unless @root.parentNode
clone = post.addClone @context, ($.hasClass @root, 'dialog')
Main.callbackNodes Clone, [clone]
# Get rid of the side arrows.
{nodes} = clone
$.rmAll nodes.root
$.add nodes.root, nodes.post
$.rmAll @root
$.add @root, nodes.root
$.event 'PostsInserted'
fetchedPost: (req) ->
# In case of multiple callbacks for the same request,
# don't parse the same original post more than once.
if post = g.posts["#{@boardID}.#{@postID}"]
@insert post
return
{status} = req
unless status in [200, 304]
# The thread can die by the time we check a quote.
unless @archivedPost()
$.addClass @root, 'warning'
@root.textContent =
if status is 404
"Thread No.#{@threadID} 404'd."
else
"Error #{req.statusText} (#{req.status})."
return
{posts} = req.response
Build.spoilerRange[@boardID] = posts[0].custom_spoiler
for post in posts
break if post.no is @postID # we found it!
if post.no isnt @postID
# Cached requests can be stale and must be rechecked.
if req.cached
api = "//a.4cdn.org/#{@boardID}/thread/#{@threadID}.json"
$.cleanCache (url) -> url is api
$.cache api, do (self = @) -> ->
self.fetchedPost @
return
# The post can be deleted by the time we check a quote.
unless @archivedPost()
$.addClass @root, 'warning'
@root.textContent = "Post No.#{@postID} was not found."
return
board = g.boards[@boardID] or
new Board @boardID
thread = g.threads["#{@boardID}.#{@threadID}"] or
new Thread @threadID, board
post = new Post Build.postFromObject(post, @boardID), thread, board
post.isFetchedQuote = true
Main.callbackNodes Post, [post]
@insert post
archivedPost: ->
return false unless Conf['Resurrect Quotes']
return false unless url = Redirect.to 'post', {@boardID, @postID}
if /^https:\/\//.test(url) or location.protocol is 'http:'
$.cache url,
do (self = @) -> -> self.parseArchivedPost @response
,
responseType: 'json'
withCredentials: url.archive.withCredentials
return true
else if Conf['Except Archives from Encryption']
CrossOrigin.json url, (response) =>
{media} = response
if media then for key of media when /_link$/.test key
# Image/thumbnail URLs loaded over HTTP can be modified in transit.
# Require them to be from a known HTTP host so that no referrer is sent to them from an HTTPS page.
delete media[key] unless media[key]? and media[key].match(/^(http:\/\/[^\/]+\/)?/)[0] in url.archive.imagehosts
@parseArchivedPost response
return true
return false
parseArchivedPost: (data) ->
# In case of multiple callbacks for the same request,
# don't parse the same original post more than once.
if post = g.posts["#{@boardID}.#{@postID}"]
@insert post
return
if data.error
$.addClass @root, 'warning'
@root.textContent = data.error
return
# https://github.com/eksopl/fuuka/blob/master/Board/Yotsuba.pm#L413-452
# https://github.com/eksopl/asagi/blob/master/src/main/java/net/easymodo/asagi/Yotsuba.java#L109-138
comment = (data.comment or '').split /(\n|\[\/?(?:b|spoiler|code|moot|banned)\])/
comment = for text, i in comment
if i % 2 is 1
@archiveTags[text]
else
greentext = text[0] is '>'
text = text.replace /(\[\/?[a-z]+):lit(\])/, '$1$2'
text = for text2, j in text.split /(>>(?:>\/[a-z\d]+\/)?\d+)/g
if j % 2 is 1
<%= html('<span class="deadlink">${text2}</span>') %>
else
<%= html('${text2}') %>
text = <%= html('@{text}') %>
text = <%= html('<span class="quote">&{text}</span>') %> if greentext
text
comment = <%= html('@{comment}') %>
@threadID = +data.thread_num
o =
# id
postID: @postID
threadID: @threadID
boardID: @boardID
# info
name: data.name
capcode: switch data.capcode
when 'M' then 'mod'
when 'A' then 'admin'
when 'D' then 'developer'
tripcode: data.trip
uniqueID: data.poster_hash
email: data.email or ''
subject: data.title
flagCode: data.poster_country
flagName: data.poster_country_name
date: data.fourchan_date
dateUTC: data.timestamp
comment: comment
# file
if data.media?.media_filename
o.file =
name: data.media.media_filename
timestamp: data.media.media_orig
url: data.media.media_link or data.media.remote_media_link or
"//i.4cdn.org/#{@boardID}/#{encodeURIComponent data.media[if @boardID is 'f' then 'media_filename' else 'media_orig']}"
height: data.media.media_h
width: data.media.media_w
MD5: data.media.media_hash
size: data.media.media_size
turl: data.media.thumb_link or "//t.4cdn.org/#{@boardID}/#{data.media.preview_orig}"
theight: data.media.preview_h
twidth: data.media.preview_w
isSpoiler: data.media.spoiler is '1'
o.file.tag = JSON.parse(data.media.exif).Tag if @boardID is 'f'
board = g.boards[@boardID] or
new Board @boardID
thread = g.threads["#{@boardID}.#{@threadID}"] or
new Thread @threadID, board
post = new Post Build.post(o), thread, board, {isArchived: true}
post.file.thumbURL = o.file.turl if post.file
post.isFetchedQuote = true
Main.callbackNodes Post, [post]
@insert post
archiveTags:
'\n': <%= html('<br>') %>
'[b]': <%= html('<b>') %>
'[/b]': <%= html('</b>') %>
'[spoiler]': <%= html('<s>') %>
'[/spoiler]': <%= html('</s>') %>
'[code]': <%= html('<pre class="prettyprint">') %>
'[/code]': <%= html('</pre>') %>
'[moot]': <%= html('<div style="padding:5px;margin-left:.5em;border-color:#faa;border:2px dashed rgba(255,0,0,.1);border-radius:2px">') %>
'[/moot]': <%= html('</div>') %>
'[banned]': <%= html('<strong style="color: red;">') %>
'[/banned]': <%= html('</strong>') %>

View File

@ -60,7 +60,7 @@ QuoteInline =
qroot = $.x 'ancestor::*[contains(@class,"postContainer")][1]', root
$.addClass qroot, 'hasInline'
Get.postClone boardID, threadID, postID, inline, context
new Fetcher boardID, threadID, postID, inline, context
return unless (post = g.posts["#{boardID}.#{postID}"]) and
context.thread is post.thread

View File

@ -24,7 +24,7 @@ QuotePreview =
className: 'dialog'
$.add Header.hover, qp
Get.postClone boardID, threadID, postID, qp, Get.contextFromNode @
new Fetcher boardID, threadID, postID, qp, Get.contextFromNode @
UI.hover
root: @