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Rearrange CrossOrigin.coffee. #829
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@ccd0
ccd0 committed Jul 27, 2019
1 parent 5d0d957 commit fb24946
Showing 1 changed file with 155 additions and 154 deletions.
309 changes: 155 additions & 154 deletions src/platform/CrossOrigin.coffee
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Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
CrossOrigin = {}

<% if (type === 'crx') { %>
eventPageRequest = do ->
callbacks = []
Expand All @@ -7,171 +9,170 @@ eventPageRequest = do ->
(params, cb) ->
chrome.runtime.sendMessage params, (id) ->
callbacks[id] = cb

<% } %>
CrossOrigin =
binary: (url, cb, headers={}) ->
# XXX https://forums.lanik.us/viewtopic.php?f=64&t=24173&p=78310
url = url.replace /^((?:https?:)?\/\/(?:\w+\.)?(?:4chan|4channel|4cdn)\.org)\/adv\//, '$1//adv/'
<% if (type === 'crx') { %>
eventPageRequest {type: 'ajax', url, headers, responseType: 'arraybuffer'}, ({response, responseHeaderString}) ->
response = new Uint8Array(response) if response
cb response, responseHeaderString
<% } %>
<% if (type === 'userscript') { %>
fallback = ->
$.ajax url, {
headers
responseType: 'arraybuffer'
onloadend: ->
if @status and @response
cb new Uint8Array(@response), @getAllResponseHeaders()
else
cb null
}
unless GM?.xmlHttpRequest? or GM_xmlhttpRequest?
fallback()
return
gmOptions =
method: "GET"
url: url
headers: headers

CrossOrigin.binary = (url, cb, headers={}) ->
# XXX https://forums.lanik.us/viewtopic.php?f=64&t=24173&p=78310
url = url.replace /^((?:https?:)?\/\/(?:\w+\.)?(?:4chan|4channel|4cdn)\.org)\/adv\//, '$1//adv/'
<% if (type === 'crx') { %>
eventPageRequest {type: 'ajax', url, headers, responseType: 'arraybuffer'}, ({response, responseHeaderString}) ->
response = new Uint8Array(response) if response
cb response, responseHeaderString
<% } %>
<% if (type === 'userscript') { %>
fallback = ->
$.ajax url, {
headers
responseType: 'arraybuffer'
overrideMimeType: 'text/plain; charset=x-user-defined'
onload: (xhr) ->
if xhr.response instanceof ArrayBuffer
data = new Uint8Array xhr.response
onloadend: ->
if @status and @response
cb new Uint8Array(@response), @getAllResponseHeaders()
else
r = xhr.responseText
data = new Uint8Array r.length
i = 0
while i < r.length
data[i] = r.charCodeAt i
i++
cb data, xhr.responseHeaders
onerror: ->
cb null
onabort: ->
cb null
try
(GM?.xmlHttpRequest or GM_xmlhttpRequest) gmOptions
catch
fallback()
<% } %>
cb null
}
unless GM?.xmlHttpRequest? or GM_xmlhttpRequest?
fallback()
return
gmOptions =
method: "GET"
url: url
headers: headers
responseType: 'arraybuffer'
overrideMimeType: 'text/plain; charset=x-user-defined'
onload: (xhr) ->
if xhr.response instanceof ArrayBuffer
data = new Uint8Array xhr.response
else
r = xhr.responseText
data = new Uint8Array r.length
i = 0
while i < r.length
data[i] = r.charCodeAt i
i++
cb data, xhr.responseHeaders
onerror: ->
cb null
onabort: ->
cb null
try
(GM?.xmlHttpRequest or GM_xmlhttpRequest) gmOptions
catch
fallback()
<% } %>

file: (url, cb) ->
CrossOrigin.binary url, (data, headers) ->
return cb null unless data?
name = url.match(/([^\/?#]+)\/*(?:$|[?#])/)?[1]
contentType = headers.match(/Content-Type:\s*(.*)/i)?[1]
contentDisposition = headers.match(/Content-Disposition:\s*(.*)/i)?[1]
mime = contentType?.match(/[^;]*/)[0] or 'application/octet-stream'
match =
contentDisposition?.match(/\bfilename\s*=\s*"((\\"|[^"])+)"/i)?[1] or
contentType?.match(/\bname\s*=\s*"((\\"|[^"])+)"/i)?[1]
if match
name = match.replace /\\"/g, '"'
if /^text\/plain;\s*charset=x-user-defined$/i.test(mime)
# In JS Blocker (Safari) content type comes back as 'text/plain; charset=x-user-defined'; guess from filename instead.
mime = QR.typeFromExtension[name.match(/[^.]*$/)[0].toLowerCase()] or 'application/octet-stream'
blob = new Blob([data], {type: mime})
blob.name = name
cb blob
CrossOrigin.file = (url, cb) ->
CrossOrigin.binary url, (data, headers) ->
return cb null unless data?
name = url.match(/([^\/?#]+)\/*(?:$|[?#])/)?[1]
contentType = headers.match(/Content-Type:\s*(.*)/i)?[1]
contentDisposition = headers.match(/Content-Disposition:\s*(.*)/i)?[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, '"'
if /^text\/plain;\s*charset=x-user-defined$/i.test(mime)
# In JS Blocker (Safari) content type comes back as 'text/plain; charset=x-user-defined'; guess from filename instead.
mime = QR.typeFromExtension[name.match(/[^.]*$/)[0].toLowerCase()] or 'application/octet-stream'
blob = new Blob([data], {type: mime})
blob.name = name
cb blob

Request: class Request
status: 0
statusText: ''
response: null
responseHeaderString: null
getResponseHeader: (headerName) ->
if !@responseHeaders? and @responseHeaderString?
@responseHeaders = {}
for header in @responseHeaderString.split('\r\n')
if (i = header.indexOf(':')) >= 0
key = header[...i].trim().toLowerCase()
val = header[i+1..].trim()
@responseHeaders[key] = val
(@responseHeaders or {})[headerName.toLowerCase()] ? null
abort: ->
onloadend: ->
CrossOrigin.Request = class Request
status: 0
statusText: ''
response: null
responseHeaderString: null
getResponseHeader: (headerName) ->
if !@responseHeaders? and @responseHeaderString?
@responseHeaders = {}
for header in @responseHeaderString.split('\r\n')
if (i = header.indexOf(':')) >= 0
key = header[...i].trim().toLowerCase()
val = header[i+1..].trim()
@responseHeaders[key] = val
(@responseHeaders or {})[headerName.toLowerCase()] ? null
abort: ->
onloadend: ->

# Attempts to fetch `url` using cross-origin privileges, if available.
# Interface is a subset of that of $.ajax.
# Options:
# `onloadend` - called with the returned object as `this` on success or error/abort/timeout.
# `timeout` - time limit for request
# `responseType` - expected response type, 'json' by default; 'json' and 'text' supported
# `headers` - request headers
# Returned object properties:
# `status` - HTTP status (0 if connection not successful)
# `statusText` - HTTP status text
# `response` - decoded response body
# `abort` - function for aborting the request (silently fails on some platforms)
# `getResponseHeader` - function for reading response headers
ajax: (url, options={}) ->
{onloadend, timeout, responseType, headers} = options
responseType ?= 'json'
# Attempts to fetch `url` using cross-origin privileges, if available.
# Interface is a subset of that of $.ajax.
# Options:
# `onloadend` - called with the returned object as `this` on success or error/abort/timeout.
# `timeout` - time limit for request
# `responseType` - expected response type, 'json' by default; 'json' and 'text' supported
# `headers` - request headers
# Returned object properties:
# `status` - HTTP status (0 if connection not successful)
# `statusText` - HTTP status text
# `response` - decoded response body
# `abort` - function for aborting the request (silently fails on some platforms)
# `getResponseHeader` - function for reading response headers
CrossOrigin.ajax = (url, options={}) ->
{onloadend, timeout, responseType, headers} = options
responseType ?= 'json'

<% if (type === 'userscript') { %>
unless GM?.xmlHttpRequest? or GM_xmlhttpRequest?
return $.ajax url, options
<% } %>
<% if (type === 'userscript') { %>
unless GM?.xmlHttpRequest? or GM_xmlhttpRequest?
return $.ajax url, options
<% } %>

req = new CrossOrigin.Request()
req.onloadend = onloadend
req = new CrossOrigin.Request()
req.onloadend = onloadend

<% if (type === 'userscript') { %>
gmOptions = {
method: 'GET'
url
headers
timeout
onload: (xhr) ->
try
response = switch responseType
when 'json'
if xhr.responseText then JSON.parse(xhr.responseText) else null
else
xhr.responseText
$.extend req, {
response
status: xhr.status
statusText: xhr.statusText
responseHeaderString: xhr.responseHeaders
}
req.onloadend()
onerror: -> req.onloadend()
onabort: -> req.onloadend()
ontimeout: -> req.onloadend()
}
try
gmReq = (GM?.xmlHttpRequest or GM_xmlhttpRequest) gmOptions
catch
return $.ajax url, options
<% if (type === 'userscript') { %>
gmOptions = {
method: 'GET'
url
headers
timeout
onload: (xhr) ->
try
response = switch responseType
when 'json'
if xhr.responseText then JSON.parse(xhr.responseText) else null
else
xhr.responseText
$.extend req, {
response
status: xhr.status
statusText: xhr.statusText
responseHeaderString: xhr.responseHeaders
}
req.onloadend()
onerror: -> req.onloadend()
onabort: -> req.onloadend()
ontimeout: -> req.onloadend()
}
try
gmReq = (GM?.xmlHttpRequest or GM_xmlhttpRequest) gmOptions
catch
return $.ajax url, options

if gmReq and typeof gmReq.abort is 'function'
req.abort = ->
try
gmReq.abort()
<% } %>
if gmReq and typeof gmReq.abort is 'function'
req.abort = ->
try
gmReq.abort()
<% } %>

<% if (type === 'crx') { %>
eventPageRequest {type: 'ajax', url, responseType, headers, timeout}, (result) ->
if result.status
$.extend req, result
req.onloadend()
<% } %>
<% if (type === 'crx') { %>
eventPageRequest {type: 'ajax', url, responseType, headers, timeout}, (result) ->
if result.status
$.extend req, result
req.onloadend()
<% } %>

req
req

cache: (url, cb) ->
$.cache url, cb,
ajax: CrossOrigin.ajax
CrossOrigin.cache = (url, cb) ->
$.cache url, cb,
ajax: CrossOrigin.ajax

permission: (cb) ->
<% if (type === 'crx') { %>
eventPageRequest {type: 'permission'}, -> cb()
<% } %>
<% if (type === 'userscript') { %>
cb()
<% } %>
CrossOrigin.permission = (cb) ->
<% if (type === 'crx') { %>
eventPageRequest {type: 'permission'}, -> cb()
<% } %>
<% if (type === 'userscript') { %>
cb()
<% } %>

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