285 lines
9.1 KiB
CoffeeScript
285 lines
9.1 KiB
CoffeeScript
libxmljs = require 'libxmljs'
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SERVER_NAME = 'Genie/0.1'
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NAMESPACES = {
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'soap-enc' : 'http://schemas.xmlsoap.org/soap/encoding/',
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'soap-env' : 'http://schemas.xmlsoap.org/soap/envelope/',
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'xsd' : 'http://www.w3.org/2001/XMLSchema',
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'xsi' : 'http://www.w3.org/2001/XMLSchema-instance',
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'cwmp' : 'urn:dslforum-org:cwmp-1-0',
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}
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cookiesToObj = (cookieLine) ->
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cookies = {}
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for c in cookieLine.trim().split ','
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nv = c.split '='
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continue if nv.length < 2
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cookies[nv[0].trim()] = nv[1].trim()
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return cookies
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cookiesToStr = (obj) ->
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l = []
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for cn, cv of obj
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l.push("#{cn}=#{cv}")
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return l# + 'path=/'
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event = (xml) ->
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e.text().trim() for e in xml.find('EventStruct/EventCode', NAMESPACES)
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parameterInfoList = (xml) ->
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infoList = []
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for e in xml.find('ParameterInfoStruct', NAMESPACES)
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name = e.get('Name').text().trim()
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writable = Boolean(JSON.parse(e.get('Writable').text()))
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infoList.push([name, writable])
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return infoList
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parameterValueList = (xml) ->
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valueList = []
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for e in xml.find('ParameterValueStruct', NAMESPACES)
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valueType = e.get('Value').attr('type').value().trim()
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name = e.get('Name').text().trim()
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value = e.get('Value').text().trim()
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try
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switch valueType
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when 'xsd:boolean'
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value = Boolean(JSON.parse(value))
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when 'xsd:unsignedInt'
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value = JSON.parse(value)
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when 'xsd:int'
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value = JSON.parse(value)
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catch err
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value = null
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valueList.push([name, value, valueType])
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return valueList
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cpeGetParameterNames = (xml, methodRequest) ->
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el = xml.node('cwmp:GetParameterNames')
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el.node('cwmp:ParameterPath').text(methodRequest.parameterPath)
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el.node('cwmp:NextLevel').text(+methodRequest.nextLevel)
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cpeGetParameterNamesResponse = (xml) ->
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{parameterList : parameterInfoList(xml.get('ParameterList'))}
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cpeGetParameterValues = (xml, methodRequest) ->
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el = xml.node('cwmp:GetParameterValues').node('cwmp:ParameterNames')
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for p in methodRequest.parameterNames
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el.node('xsd:string').text(p)
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cpeGetParameterValuesResponse = (xml) ->
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{parameterList : parameterValueList(xml.get('ParameterList'))}
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cpeSetParameterValues = (xml, methodRequest) ->
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el = xml.node('cwmp:SetParameterValues')
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paramList = el.node('ParameterList')
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for i in methodRequest.parameterList
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pvs = paramList.node('ParameterValueStruct')
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pvs.node('Name').text(i[0])
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v = pvs.node('Value')
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v.text(i[1])
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v.attr({'xsi:type' : i[2]}) if i[2]?
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# Huawei CPEs need this element present otherwise won't respond
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el.node('ParameterKey').text(if methodRequest.parameterKey? then methodRequest.parameterKey else '')
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cpeSetParameterValuesResponse = (xml) ->
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{status : JSON.parse(xml.get('Status').text())}
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traverseXml = (xml) ->
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obj = {}
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for n in xml.childNodes()
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if n.type() == 'element'
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obj[n.name()] = traverseXml(n)
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if Object.keys(obj).length == 0
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xml.text()
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else
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obj
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fault = (xml) ->
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return traverseXml(xml)
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acsInform = (xml) ->
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{
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parameterList : parameterValueList(xml.get('ParameterList')),
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deviceId : traverseXml(xml.get('DeviceId')),
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event : event(xml.get('Event')),
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retryCount : JSON.parse(xml.get('RetryCount').text())
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}
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acsInformResponse = (xml) ->
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xml.node('cwmp:InformResponse').node('MaxEnvelopes').text(1)
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cpeReboot = (xml, methodRequest) ->
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el = xml.node('cwmp:Reboot')
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# Huawei CPEs need this element present otherwise won't respond
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el.node('CommandKey').text(if methodRequest.commandKey then methodRequest.commandKey else '')
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cpeRebootResponse = (xml) ->
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{}
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cpeFactoryReset = (xml, methodRequest) ->
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el = xml.node('cwmp:FactoryReset')
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el.node('CommandKey').text(if methodRequest.commandKey then methodRequest.commandKey else '')
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cpeFactoryResetResponse = (xml, methodRequest) ->
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{}
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cpeDownload = (xml, methodRequest) ->
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el = xml.node('cwmp:Download')
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el.node('CommandKey').text(methodRequest.commandKey or '')
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el.node('FileType').text(methodRequest.fileType)
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el.node('URL').text(methodRequest.url)
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el.node('Username').text(methodRequest.username or '')
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el.node('Password').text(methodRequest.password or '')
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el.node('FileSize').text(methodRequest.fileSize or '0')
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el.node('TargetFileName').text(methodRequest.TargetFileName or '')
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el.node('DelaySeconds').text(methodRequest.delaySeconds or '0')
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el.node('SuccessURL').text(methodRequest.successUrl or '')
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el.node('FailureURL').text(methodRequest.failureUrl or '')
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cpeDownloadResponse = (xml) ->
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{status : JSON.parse(xml.get('Status').text())}
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acsTransferComplete = (xml) ->
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{
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commandKey : xml.get('CommandKey').text(),
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faultStruct : traverseXml(xml.get('FaultStruct')),
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startTime : xml.get('StartTime').text(), # TODO convert to datetime
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completeTime : xml.get('CompleteTime').text() # TODO convert to datetime
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}
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acsTransferCompleteResponse = (xml, methodRequest) ->
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xml.node('cwmp:TransferCompleteResponse').text('')
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exports.request = (httpRequest) ->
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cwmpRequest = {cookies: {}}
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cwmpRequest.cookies = cookiesToObj(httpRequest.headers.cookie) if httpRequest.headers.cookie
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data = httpRequest.getBody()
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if +httpRequest.headers['Content-Length'] > 0 || data.length > 0
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try
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xml = libxmljs.parseXml data
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catch err
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# some devices send invalid utf8 characters
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xml = libxmljs.parseXml httpRequest.getBody('binary')
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cwmpRequest.id = xml.get('//soap-env:Envelope/soap-env:Header/cwmp:ID', NAMESPACES).text()
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methodElement = xml.get('/soap-env:Envelope/soap-env:Body/cwmp:*', NAMESPACES)
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if methodElement?
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switch methodElement.name()
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when 'Inform'
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cwmpRequest.methodRequest = acsInform(methodElement)
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cwmpRequest.methodRequest.type = 'Inform'
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when 'TransferComplete'
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cwmpRequest.methodRequest = acsTransferComplete(methodElement)
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cwmpRequest.methodRequest.type = 'TransferComplete'
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when 'GetParameterNamesResponse'
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cwmpRequest.methodResponse = cpeGetParameterNamesResponse(methodElement)
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cwmpRequest.methodResponse.type = 'GetParameterNamesResponse'
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when 'GetParameterValuesResponse'
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cwmpRequest.methodResponse = cpeGetParameterValuesResponse(methodElement)
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cwmpRequest.methodResponse.type = 'GetParameterValuesResponse'
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when 'SetParameterValuesResponse'
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cwmpRequest.methodResponse = cpeSetParameterValuesResponse(methodElement)
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cwmpRequest.methodResponse.type = 'SetParameterValuesResponse'
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when 'RebootResponse'
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cwmpRequest.methodResponse = cpeRebootResponse(methodElement)
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cwmpRequest.methodResponse.type = 'RebootResponse'
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when 'FactoryResetResponse'
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cwmpRequest.methodResponse = cpeFactoryResetResponse(methodElement)
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cwmpRequest.methodResponse.type = 'FactoryResetResponse'
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when 'DownloadResponse'
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cwmpRequest.methodResponse = cpeDownloadResponse(methodElement)
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cwmpRequest.methodResponse.type = 'DownloadResponse'
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else
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throw Error('8000 Method not supported ' + methodElement.name())
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else
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faultElement = xml.get('/soap-env:Envelope/soap-env:Body/soap-env:Fault', NAMESPACES)
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cwmpRequest.fault = fault(faultElement)
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return cwmpRequest
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exports.response = (id, cwmpResponse, cookies = null) ->
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headers = {
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'Content-Type' : 'text/xml; charset="utf-8"',
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'Server' : SERVER_NAME,
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'SOAPServer' : SERVER_NAME,
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}
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if cookies? and Object.keys(cookies).length > 0
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headers['Set-Cookie'] = cookiesToStr(cookies)
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if not cwmpResponse? or Object.keys(cwmpResponse).length == 0
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#console.log '>>> EMPTY RESPONSE'
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# send empty response
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headers['Content-Length'] = 0
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return {code: 204, headers: headers, data: ''}
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xml = libxmljs.Document()
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env = xml.node('soap-env:Envelope')
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for prefix, url of NAMESPACES
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env.defineNamespace prefix, url
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header = env.node('soap-env:Header')
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header.node('cwmp:ID').attr({'soap-env:mustUnderstand' : 1}).text(id)
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body = env.node('soap-env:Body')
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if cwmpResponse.methodResponse?
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switch cwmpResponse.methodResponse.type
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when 'InformResponse'
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acsInformResponse(body)
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when 'TransferCompleteResponse'
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acsTransferCompleteResponse(body)
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else
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throw Error("Unknown method response type #{cwmpResponse.methodResponse.type}")
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else if cwmpResponse.methodRequest?
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switch cwmpResponse.methodRequest.type
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when 'GetParameterNames'
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cpeGetParameterNames(body, cwmpResponse.methodRequest)
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when 'GetParameterValues'
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cpeGetParameterValues(body, cwmpResponse.methodRequest)
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when 'SetParameterValues'
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cpeSetParameterValues(body, cwmpResponse.methodRequest)
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when 'Reboot'
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cpeReboot(body, cwmpResponse.methodRequest)
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when 'FactoryReset'
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cpeFactoryReset(body, cwmpResponse.methodRequest)
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when 'Download'
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cpeDownload(body, cwmpResponse.methodRequest)
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else
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throw Error("Unknown method request #{cwmpResponse.methodRequest.type}")
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else
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throw Error('Invalid response arguments')
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data = xml.toString()
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headers['Content-Length'] = data.length
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return {code: 200, headers: headers, data: data}
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