I installed Tronbox and want to deploy smart contract. But before that, I want to create a transaction for which I have private key and address. So, I installed tron-api-cli, followed instruction from link https://www.npmjs.com/package/tron-api-cli. But I am not getting how to create transaction in command line. Can somebody help?
Even the tron-api-cli installation is completed, tron-api-cli command gives error:
tron-api-cli: command not found
The package is kind of misnamed. It's not a Command Line Interface (CLI), it's a client that you can use inside a Javascript application.
To create a transaction in JS, you use the TransactionFactory. For example, see the method sendTRX from AccountCLI class:
sendTRX(toAddress,amount,node){
pKeyRequired(this.pkey)
let tx = TransactionFactory.createTx(TronProtocol.Transaction.Contract.ContractType.TRANSFERCONTRACT,{owner:this.address,to:toAddress,amount})
return this.blockCli.addRef(tx).then((txWithRef)=>{
let transactionString = this.sign(txWithRef,this.pkey)
return axios.post(`${this.endpoint}${API_TRON_BROADCAST}`,{payload:transactionString,node}).then((res)=>{return res.data})
})
Related
I recently started using commandBox to run ColdFusion in my local environment. After I played around for a while one issue I run into was related to adminapi. Here is the code that I use in one of my projects:
adminObj = createObject("component","cfide.adminapi.runtime");
instance = adminObj.getInstanceName();
This code is pretty straight forward and work just fine if I install traditional ColdFusion Developer version on my machine. I tried running this on commandBox: "app":{ "cfengine":"adobe#2018.0.7" }
After I run the code above this is the error message I got:
Object Instantiation Exception.
Class not found: com.adobe.coldfusion.entman.ProcessServer
The first debugging step was to check if component exists. I simply checked that like this:
adminObj = createObject("component","cfide.adminapi.runtime");
writeDump(adminObj);
The result I got on the screen was this:
component CFIDE.adminapi.runtime
extends CFIDE.adminapi.base
METHODS
Then I tried this to make sure method exists in the scope:
adminObj = createObject("component","cfide.adminapi.runtime");
writeDump(adminObj.getInstanceName);
The output looks like this, and that confirmed that method getInstanceName exists.
function getInstanceName
Arguments: none
ReturnType: any
Roles:
Access: public
Output: false
DisplayName:
Hint: returns the current instance name
Description:
The error is occurring only if I call the function getInstanceName(). Does anyone know what could be the reason of this error? Is there any solution for this particular problem? Like I already mentioned this method works in traditional ColdFusion 2018 developer environment. Thank you.
This is a bug in Adobe ColdFusion. The CFC you're creating is trying to create an instance of a specific Java class. I recognize the class name com.adobe.coldfusion.entman.ProcessServer as being related to their enterprise manager which controls features only available in certain versions of CF as well as features only available on their "standard" Tomcat installation (as opposed to a J2E deployment like CommandBox).
Please report this to Adobe in the Adobe bug tracker as they appear to be incorrectly detecting the servlet installation. I worked with them a couple years ago to improve their servlet detection on CommandBox, but I guess they still have some issues.
As a workaround, you could try and find out what jar that class is from on a non-CommandBox installation of Adobe ColdFusion and add it to the path, but I can't promise that it will work and that it won't have negative consequences.
I am trying to build Corda on Ubuntu 20.04. I have the latest sources from the git repo (release/os/4.6) and I run ./gradlew build in the main folder. However the build fails during two tests (see the detail description below). Is there something that I'm missing? Are there some special flags that I should use for building Corda?
First, the test test default SecureRandom uses platformSecureRandom fails at the last assert, i.e.,
// in file net/corda/core/crypto/CryptoUtilsTest.kt
fun `test default SecureRandom uses platformSecureRandom`() {
// [...]
// Remove Corda Provider again and add it as the first Provider entry.
Security.removeProvider(CordaSecurityProvider.PROVIDER_NAME)
Security.insertProviderAt(CordaSecurityProvider(), 1) // This is base-1.
val secureRandomRegisteredFirstCordaProvider = SecureRandom()
assertEquals(PlatformSecureRandomService.algorithm, secureRandomRegisteredFirstCordaProvider.algorithm)
}
The reason for the failed test is Expected <CordaPRNG>, actual <SHA1PRNG>..
For some reason, the test is successful if before inserting the provider, I call the getServices() method, i.e.,
val provider = CordaSecurityProvider()
provider.getServices()
Security.insertProviderAt(provider, 1) // This is base-1.
I also tried to get the service SecureRandom.CordaPRNG directly from the provider and it works, i.e,
println(provider.getService("SecureRandom", "CordaPRNG"))
prints out Corda: SecureRandom.CordaPRNG -> javaClass
Second, the test h2 server on the host IP requires non-default database password fails since it expects a CouldNotCreateDataSourceException, but it gets a NullPointerException instead, i.e.,
// in file net/corda/node/internal/NodeH2SecurityTests.kt
fun `h2 server on the host IP requires non-default database password`() {
// [...]
address = NetworkHostAndPort(InetAddress.getLocalHost().hostAddress, 1080)
val node = MockNode()
val exception = assertFailsWith(CouldNotCreateDataSourceException::class) {
node.startDb()
}
// [...]
}
The problem is that the address is 127.0.1.1:1080, which means that net/corda/node/internal/Node.kt::startDatabase() does not throw CouldNotCreateDataSourceException since the condition to enter the branch
if (!InetAddress.getByName(effectiveH2Settings.address.host).isLoopbackAddress
&& configuration.dataSourceProperties.getProperty("dataSource.password").isBlank()) {
throw CouldNotCreateDataSourceException()
}
is not satisfied. Instead it calls toString() on the parent of the path given by the DB name; the parent is null, and thus, it throws NullPointerException, i.e.,
val databaseName = databaseUrl.removePrefix(h2Prefix).substringBefore(';')
// databaseName=my_file
val baseDir = Paths.get(databaseName).parent.toString()
Unfortunately there't a LOT of reasons that building Corda from source might not work.
Here are my recommendations:
it could be a java issue, there's a docs page on the specific version of java 8 that you need to use, (latest java support is on the roadmap for corda 5 🔥) Here's the docs page on that https://docs.corda.net/docs/corda-os/4.5/getting-set-up.html
Like Alessandro said, you'll want to be aware that 4.6 isn't generally available yet so there may well be bugs and problems in the code until the release. In addition just take another look at the docs page on building corda (here: https://docs.corda.net/docs/corda-os/4.5/building-corda.html#debianubuntu-linux), it's mentioned to use 18.04 but not the latest linux, as there might be some random clib things that could get in the way there.
Good luck to you.
I want to be able to replace and add some classes to an already running JVM. I read that I need to use CreateRemoteThread, but I don't completely get it. I read this post on how to do it (Software RnD), but I can't figure out what it does and why. Besides that, it only introduces new classes, but doesn't change existing ones. How can I do it with C++?
You don't even need CreateRemoteThread - there is an official way to connect to remote JVM and replace loaded classes by using Attach API.
You need a Java Agent that calls Instrumentation.redefineClasses.
public static void agentmain(String args, Instrumentation instr) throws Exception {
Class oldClass = Class.forName("org.pkg.MyClass");
Path newFile = Paths.get("/path/to/MyClass.class");
byte[] newData = Files.readAllBytes(newFile);
instr.redefineClasses(new ClassDefinition(oldClass, newData));
}
You'll have to add MANIFEST.MF with Agent-Class attribute and pack the agent into a jar file.
Then use Dynamic Attach to inject the agent jar into the running VM (with process ID = pid).
import com.sun.tools.attach.VirtualMachine;
...
VirtualMachine vm = VirtualMachine.attach(pid);
try {
vm.loadAgent(agentJarPath, options);
} finally {
vm.detach();
}
A bit more details in the article.
If you insist on using C/C++ instead of Java API, you may look at my jattach utility.
I'm new to OTRS (3.2) and also new to PERL but I have been given the task of setting up OTRS so that it will make a call to our remote webservice so a record can be created on our end when a ticket is set as "Closed".
I set up various dynamic fields so the customer service rep can fill in additional data that will be passed into the webservice call along with ticket details.
I couldn't get the webservice call to trigger when the ticket was "Closed" but I did get it to trigger when the "priority" was changed so I'm just using that now to test the webservice.
I'm just using the Test.pm and TestSimple.pm files that were included with OTRS.
When I look at the Debugger for the Webserice, I can see that the calls were being made:
$VAR1 = {
'TicketID' => '6'
};
My webservice currently just has one method "create" which just returns true for testing.
however I get the following from the Test.pm
"Got no TicketNumber (2014-09-02 09:20:42, error)"
and the following from the TestSimple.pm
"Error in SOAP call: 404 Not Found at /TARGET/SHARE/var/otrs/Kernel/GenericInterface/Transport/HTTP/SOAP.pm line 578 (2014-09-02 09:20:43, error)
I've spent countless hours on Google but couldn't find anything on this. All I could find is code for the Test.pm and TestSimple.pm but nothing really helpful to help me create a custom invoker for my needs and configure the webservice in OTRS to get it to work.
Does anyone have any sample invokers that I can look at to see how to set it up?
Basically I need to pass the ticket information along with my custom dynamic fields to my webservice. From there I can create the record on my end and do whatever processing.
I'm not sure how to setup the Invoker to pass the necessary ticket fields and dynamic fields and how to make it call a specific method in my remote webservice.
I guess getting the Test.pm and TestSimple.pm to work is the first step then I can modify those for my needs. I have not used PERL at all so any help is greatly appreciated.
I'm also struggling with similar set of requirements too. I've also never programmed in PERL, but I can tell you at least that the "Got no TicketNumber" in the Test.pm is right from the PrepareRequest method, there you can see this block of code:
# we need a TicketNumber
if ( !IsStringWithData( $Param{Data}->{TicketNumber} ) ) {
return $Self->{DebuggerObject}->Error( Summary => 'Got no TicketNumber' );
}
You should change all references to TicketNumber to TicketID, or remove the validation whatsoever (also there is mapping to ReturnedData variable).
Invoking specific methods on your WS interface is quite simple (but poorly documented). The Invoker name that you specify in the "OTRS as requester" section of web service configuration corresponds to the WS method that will be called. So if you have WS interface with a method called "create" just name the Invoker "create" too.
As far as the gathering of dynamic field goes, can't help you on that one yet, sorry.
Cheers
I would like to increase the deploy time, in a stack layer that hosts many apps (AWS Opsworks).
Currenlty I get the following error:
Eror
[2014-05-05T22:27:51+00:00] ERROR: Running exception handlers
[2014-05-05T22:27:51+00:00] ERROR: Exception handlers complete
[2014-05-05T22:27:51+00:00] FATAL: Stacktrace dumped to /var/lib/aws/opsworks/cache/chef-stacktrace.out
[2014-05-05T22:27:51+00:00] ERROR: deploy[/srv/www/lakers_test] (opsworks_delayed_job::deploy line 65) had an error: Mixlib::ShellOut::CommandTimeout: Command timed out after 600s:
Thanks in advance.
First of all, as mentioned in this ticket reporting a similar issue, the Opsworks guys recommend trying to speed up the call first (there's always room for optimization).
If that doesn't work, we can go down the rabbit hole: this gets called, which in turn calls Mixlib::ShellOut.new, which happens to have a timeout option that you can pass in the initializer!
Now you can use an Opsworks custom cookbook to overwrite the initial method, and pass the corresponding timeout option. Opsworks merges the contents of its base cookbooks with the contents of your custom cookbook - therefore you only need to add & edit one single file to your custom cookbook: opsworks_commons/libraries/shellout.rb:
module OpsWorks
module ShellOut
extend self
# This would be your new default timeout.
DEFAULT_OPTIONS = { timeout: 900 }
def shellout(command, options = {})
cmd = Mixlib::ShellOut.new(command, DEFAULT_OPTIONS.merge(options))
cmd.run_command
cmd.error!
[cmd.stderr, cmd.stdout].join("\n")
end
end
end
Notice how the only additions are just DEFAULT_OPTIONS and merging these options in the Mixlib::ShellOut.new call.
An improvement to this method would be changing this timeout option via a chef attribute, that you could in turn update via your custom JSON in the Opsworks interface. This means passing the timeout attribute in the initial Opsworks::ShellOut.shellout call - not in the method definition. But this depends on how the shellout method actually gets called...