52 lines
1.6 KiB
CoffeeScript
52 lines
1.6 KiB
CoffeeScript
requestID = 0
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chrome.runtime.onMessage.addListener (request, sender, sendResponse) ->
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id = requestID
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requestID++
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sendResponse id
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handlers[request.type] request, (response) ->
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chrome.tabs.sendMessage sender.tab.id, {id, data: response}
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handlers =
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permission: (request, cb) ->
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chrome.permissions.contains
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origins: ['*://*/']
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, (result) ->
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if result
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cb()
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else
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chrome.permissions.request
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origins: ['*://*/']
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, ->
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cb()
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ajax: (request, cb) ->
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xhr = new XMLHttpRequest()
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xhr.open 'GET', request.url, true
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xhr.responseType = request.responseType
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xhr.timeout = request.timeout
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for key, value of (request.headers or {})
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xhr.setRequestHeader key, value
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xhr.addEventListener 'load', ->
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{status, statusText, response} = @
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responseHeaderString = @getAllResponseHeaders()
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if @readyState is @DONE && xhr.status is 200
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if request.responseType is 'arraybuffer'
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response = [new Uint8Array(response)...]
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contentType = @getResponseHeader 'Content-Type'
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contentDisposition = @getResponseHeader 'Content-Disposition'
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cb {status, statusText, response, responseHeaderString, contentType, contentDisposition}
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else
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cb {status, statusText, response, responseHeaderString, error: true}
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, false
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xhr.addEventListener 'error', ->
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cb {error: true}
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, false
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xhr.addEventListener 'abort', ->
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cb {error: true}
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, false
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xhr.addEventListener 'timeout', ->
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cb {error: true}
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, false
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xhr.send()
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