4chan-x/src/General/CrossOrigin.coffee

100 lines
3.3 KiB
CoffeeScript

CrossOrigin = do ->
<% if (type === 'crx') { %>
eventPageRequest = do ->
callbacks = []
chrome.runtime.onMessage.addListener (data) ->
callbacks[data.id] data
delete callbacks[data.id]
(url, responseType, cb) ->
chrome.runtime.sendMessage {url, responseType}, (id) ->
callbacks[id] = cb
<% } %>
file: do ->
makeBlob = (urlBlob, contentType, contentDisposition, url) ->
name = url.match(/([^\/]+)\/*$/)?[1]
mime = contentType?.match(/[^;]*/)[0] or 'application/octet-stream'
match =
contentDisposition?.match(/\bfilename\s*=\s*"((\\"|[^"])+)"/i)?[1] or
contentType?.match(/\bname\s*=\s*"((\\"|[^"])+)"/i)?[1]
if match
name = match.replace /\\"/g, '"'
blob = new Blob([urlBlob], {type: mime})
blob.name = name
blob
(url, cb) ->
<% if (type === 'crx') { %>
if /^https:\/\//.test(url) or location.protocol is 'http:'
$.ajax url,
responseType: 'blob'
onload: ->
return cb null unless @readyState is @DONE and @status is 200
contentType = @getResponseHeader 'Content-Type'
contentDisposition = @getResponseHeader 'Content-Disposition'
cb (makeBlob @response, contentType, contentDisposition, url)
onerror: ->
cb null
else
eventPageRequest url, 'arraybuffer', ({response, contentType, contentDisposition, error}) ->
return cb null if error
cb (makeBlob new Uint8Array(response), contentType, contentDisposition, url)
<% } %>
<% if (type === 'userscript') { %>
GM_xmlhttpRequest
method: "GET"
url: url
overrideMimeType: "text/plain; charset=x-user-defined"
onload: (xhr) ->
r = xhr.responseText
data = new Uint8Array r.length
i = 0
while i < r.length
data[i] = r.charCodeAt i
i++
contentType = xhr.responseHeaders.match(/Content-Type:\s*(.*)/i)?[1]
contentDisposition = xhr.responseHeaders.match(/Content-Disposition:\s*(.*)/i)?[1]
cb (makeBlob data, contentType, contentDisposition, url)
onerror: ->
cb null
<% } %>
json: do ->
callbacks = {}
responses = {}
(url, cb) ->
<% if (type === 'crx') { %>
if /^https:\/\//.test(url) or location.protocol is 'http:'
return $.cache url, (-> cb @response), responseType: 'json'
<% } %>
if responses[url]
cb responses[url]
return
if callbacks[url]
callbacks[url].push cb
return
callbacks[url] = [cb]
<% if (type === 'userscript') { %>
GM_xmlhttpRequest
method: "GET"
url: url
onload: (xhr) ->
response = JSON.parse xhr.responseText
cb response for cb in callbacks[url]
delete callbacks[url]
responses[url] = response
onerror: ->
delete callbacks[url]
onabort: ->
delete callbacks[url]
<% } %>
<% if (type === 'crx') { %>
eventPageRequest url, 'json', ({response, error}) ->
if error
delete callbacks[url]
else
cb response for cb in callbacks[url]
delete callbacks[url]
responses[url] = response
<% } %>