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inpage - remap ids on response

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This commit is contained in:
kumavis 2016-08-31 15:40:05 -07:00
parent d26dd53fe1
commit 532737a101
1 changed files with 18 additions and 4 deletions
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22
app/scripts/lib/inpage-provider.js
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@ -33,15 +33,29 @@ function MetamaskInpageProvider (connectionStream) {
})
asyncProvider.on('error', console.error.bind(console))
self.asyncProvider = asyncProvider
self.idMap = {}
// handle sendAsync requests via asyncProvider
self.sendAsync = function(payload, cb){
// rewrite request ids
var request = jsonrpcMessageTransform(payload, (message) => {
message.id = createRandomId()
var request = eachJsonMessage(payload, (message) => {
var newId = createRandomId()
self.idMap[newId] = message.id
message.id = newId
return message
})
// forward to asyncProvider
asyncProvider.sendAsync(request, cb)
asyncProvider.sendAsync(request, function(err, res){
if (err) return cb(err)
// transform messages to original ids
eachJsonMessage(res, (message) => {
var oldId = self.idMap[message.id]
delete self.idMap[message.id]
message.id = oldId
return message
})
cb(null, res)
})
}
}
@ -111,7 +125,7 @@ function createRandomId(){
return datePart + extraPart
}
function jsonrpcMessageTransform(payload, transformFn){
function eachJsonMessage(payload, transformFn){
if (Array.isArray(payload)) {
return payload.map(transformFn)
} else {