// newREPLConsole creates a new JavaScript interpreter console that can be used
// by the API to serve fronted console requests.
func newREPLConsole(eapis *etherapis.EtherAPIs) *jsre.JSRE {
// Create a JavaScript interpreter with web3 injected
console := jsre.New("")
client, _ := eapis.Geth().Stack().Attach()
jeth := utils.NewJeth(console, client)
console.Set("jeth", struct{}{})
t, _ := console.Get("jeth")
jethObj := t.Object()
jethObj.Set("send", jeth.Send)
jethObj.Set("sendAsync", jeth.Send)
console.Compile("bignumber.js", jsre.BigNumber_JS)
console.Compile("web3.js", jsre.Web3_JS)
console.Run("var Web3 = require('web3');")
console.Run("var web3 = new Web3(jeth);")
// Inject all of the APIs exposed by the inproc RPC client
shortcut := "var eth = web3.eth; var personal = web3.personal; "
apis, _ := client.SupportedModules()
for api, _ := range apis {
if api == "web3" || api == "rpc" {
continue
}
if jsFile, ok := web3ext.Modules[api]; ok {
console.Compile(fmt.Sprintf("%s.js", api), jsFile)
shortcut += fmt.Sprintf("var %s = web3.%s; ", api, api)
}
}
console.Run(shortcut)
// Finally return the ready console
return console
}
func (js *jsre) apiBindings() error {
apis, err := js.supportedApis()
if err != nil {
return err
}
apiNames := make([]string, 0, len(apis))
for a, _ := range apis {
apiNames = append(apiNames, a)
}
jeth := utils.NewJeth(js.re, js.client)
js.re.Set("jeth", struct{}{})
t, _ := js.re.Get("jeth")
jethObj := t.Object()
jethObj.Set("send", jeth.Send)
jethObj.Set("sendAsync", jeth.Send)
err = js.re.Compile("bignumber.js", re.BigNumber_JS)
if err != nil {
utils.Fatalf("Error loading bignumber.js: %v", err)
}
err = js.re.Compile("web3.js", re.Web3_JS)
if err != nil {
utils.Fatalf("Error loading web3.js: %v", err)
}
_, err = js.re.Run("var Web3 = require('web3');")
if err != nil {
utils.Fatalf("Error requiring web3: %v", err)
}
_, err = js.re.Run("var web3 = new Web3(jeth);")
if err != nil {
utils.Fatalf("Error setting web3 provider: %v", err)
}
// load only supported API's in javascript runtime
shortcuts := "var eth = web3.eth; var personal = web3.personal; "
for _, apiName := range apiNames {
if apiName == "web3" || apiName == "rpc" {
continue // manually mapped or ignore
}
if jsFile, ok := web3ext.Modules[apiName]; ok {
if err = js.re.Compile(fmt.Sprintf("%s.js", apiName), jsFile); err == nil {
shortcuts += fmt.Sprintf("var %s = web3.%s; ", apiName, apiName)
} else {
utils.Fatalf("Error loading %s.js: %v", apiName, err)
}
}
}
_, err = js.re.Run(shortcuts)
if err != nil {
utils.Fatalf("Error setting namespaces: %v", err)
}
js.re.Run(`var GlobalRegistrar = eth.contract(` + registrar.GlobalRegistrarAbi + `); registrar = GlobalRegistrar.at("` + registrar.GlobalRegistrarAddr + `");`)
// overrule some of the methods that require password as input and ask for it interactively
p, err := js.re.Get("personal")
if err != nil {
fmt.Println("Unable to overrule sensitive methods in personal module")
return nil
}
// Override the unlockAccount and newAccount methods on the personal object since these require user interaction.
// Assign the jeth.unlockAccount and jeth.newAccount in the jsre the original web3 callbacks. These will be called
// by the jeth.* methods after they got the password from the user and send the original web3 request to the backend.
if persObj := p.Object(); persObj != nil { // make sure the personal api is enabled over the interface
js.re.Run(`jeth.unlockAccount = personal.unlockAccount;`)
persObj.Set("unlockAccount", jeth.UnlockAccount)
js.re.Run(`jeth.newAccount = personal.newAccount;`)
persObj.Set("newAccount", jeth.NewAccount)
}
// The admin.sleep and admin.sleepBlocks are offered by the console and not by the RPC layer.
// Bind these if the admin module is available.
if a, err := js.re.Get("admin"); err == nil {
if adminObj := a.Object(); adminObj != nil {
adminObj.Set("sleepBlocks", jeth.SleepBlocks)
adminObj.Set("sleep", jeth.Sleep)
}
}
return nil
}