Develop Reference

How to fix AWS 403 error "Check your AWS Secret Access Key and signing method" when calling SES listcontacts

I have been stuck for about the past 6 hours at this point I'm thinking the only reasonable explanations are that this is a AWS SDK bug or the error message is wrong.
I am using SESv2 class from the AWS SDK in a JAVA SpringBoot app and attempting to manage various details of my SES (Simple Email Service) account.
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.sesv2.SesV2Client;
import software.amazon.awssdk.services.sesv2.model.*;
I have created an IAM user, created security credentials, set them up using multiple different methods as described here guid to credentials environment I've given full access to SES to this IAM role user. I then wrote some code and I was able to do all of the following,
Create a contact list
Delete a contact list
Create contact
Create a Topic in a contact list
Send an email
However, for some unknown reason when I go to test a function I wrote to get a list of contacts so I can test sending an email to multiple contacts I get the following 403 error message,
The request signature we calculated does not match the signature you
provided. Check your AWS Secret Access Key and signing method. Consult
the service documentation for details.
I've verified the credentials are correct. I have created a new set of credentials and made the old set inactive. No dice, all the functions listed above still work however the listContacts in the SesV2Client class still fails with the same error. As you can see below I even bypassed the env variables and just hardcoded the key and secret to pull out all the stops, still fails. In the function that fails, I've gone over and over the values im passing in they are valid and exist 100% because as I said I can make the other calls in the list above to verify the topics and contact list exists.
private List<Contact> listContactsForSiteUpdatesMailingList() {
try (SesV2Client client = SesV2Client.builder()
.region(Region.US_EAST_1)
.credentialsProvider(StaticCredentialsProvider.create(awsCreds))
.build()){
TopicFilter topicFilter = TopicFilter.builder().topicName(TOPIC_SITE_UPDATES).useDefaultIfPreferenceUnavailable(true).build();
ListContactsFilter listContactsFilter = ListContactsFilter.builder().topicFilter(topicFilter).filteredStatus(SubscriptionStatus.OPT_IN).build();
ListContactsRequest listContactsRequest = ListContactsRequest.builder()
.contactListName(CONTACT_LIST).filter(listContactsFilter).build();
ListContactsResponse listContactsResponse = client.listContacts(listContactsRequest);
return listContactsResponse.contacts();
} catch (Exception ex) {
System.out.println("The email was not sent. Error message: "
+ ex.getMessage());
return null;
}
}
Whats going on here and how can I get to the bottom of this error?
EDIT:
Looking at AWS Console Users>Access Management and then looking at the user a created I can even verify that there was "programmatic access"
An example of accessing a ContactList with no issues
EDIT 2: My SES account is currently sandboxed. I just wanted to mention the question is this possibly happening because of that? Grasping at straws here.

I was able to reproduce your issue. I created a list and added a contact. Both worked. However, when i executed listContacts, I got this error:
This looks like a bug. To address this, open a Github issue on the SDK Java Github here:
https://github.com/aws/aws-sdk-java

This is confirmed as a bug in the AWS SDK. To get around this you can use the async client like so
SesV2AsyncClient client = SesV2AsyncClient.builder()
.region(Region.US_EAST_1)
.build())
TopicFilter topicFilter = TopicFilter.builder().topicName(TOPIC_SITE_UPDATES).useDefaultIfPreferenceUnavailable(true).build();
ListContactsFilter listContactsFilter = ListContactsFilter.builder().topicFilter(topicFilter).filteredStatus(SubscriptionStatus.OPT_IN).build();
ListContactsRequest listContactsRequest = ListContactsRequest.builder()
.contactListName(CONTACT_LIST).filter(listContactsFilter).build();
CompletableFuture<ListContactsResponse> listContactsResponseCompletableFuture = client.listContacts(listContactsRequest);
ListContactsResponse listContactsResponse = listContactsResponseCompletableFuture.get();

Stream key with YASEA

I'm trying to stream via RTMP to a server made by other people. I'm using Android so I'm trying with YASEA.
I've used YASEA other times and it worked good, just passing and URL to it. My problem now is that the server now has an url type:
rtmp:[server]:[port]/[something]/[something]
but also I have what they call "Stream Name/Stream Key".
I've tested OBS and the Android app RTMPCamera and they let me set url and that Stream key, but in YASEA I don't have a clue of where to put that key.
Does anyone know if there's a place to set it or if I can set it within the URL?
I've tested with:
rtmp:[server]:[port]/[something]/[something]/[key]
rtmp:[server]:[port]/[something]/[something]?StreamKey=[key]
rtmp:[server]:[port]/[something]/[something]?StreamName=[key]
rtmp:[server]:[port]/[something]/[something][key]
rtmp:[server]:[port]/[something]/[something]?key=[key]
rtmp:[server]:[port]/[something]/[something]?[key]
But none of those worked.

.. usually it's just url/stream_key.
rtmp:[server]:[port]/["Stream Name/Stream Key"]

how to determine if a web service is up and running

i was trying to call the following web service from my android app, it hung then completed without returning the result:
web service:http://androidexample.com/media/webservice/JsonReturn.php
However when I clicked on the link, it worked fine - the json file displayed. yet it would not work in my app..
but now, it works fine now in my android app, perhaps it was temporarily down is what I am guessing. How can I know if a web service is up and running for an android app to consume ?

Typically, web services are designed to have a status page that can return status text or a HTTP return code to indicate service status.
If it doesn't have that, you can design a function to periodically do a very basic request with a known result to determine state. This is much better than doing a simple ping.

If it was down it would most likely show a HTML error page, which your app would try to parse, which would cause an error.
I had a similar issue, because I needed to know if the user was returning HTML or the correct JSON, to do this I created the ArrayList I was about to use outside of the try/catch of the parse area. You should do the same if you are using a string.
What I mean is, use:
ArrayList<Something> arrayList = new ArrayList<Something>();
String testString = ""; instead of String testString = null;
I was using only ArrayList<Something> arrayList; at one point which is incorrect. If the user then returns HTML, you won't get an error, the user will simply return an empty arraylist or empty string.
You can then plan for that and show some sort of error message. This way you only need one network request but you can still plan for getting the data back, and the server being down.

Javascript-to-Java Communication in an Android Phonegap app

I am working on a Phonegap application that uses an Android service to check for message updates while the app isn't being used. In order to do that, however, I need the session key generated by the user's username and password. The generation of the session key is handled on the Javascript/HTML side of things while the app is active in the foreground.
My question is, how do I access a Javascript variable for use in Java? I need the session key value as a String object in Java. I just need to access it once, and I don't have a clue how Javascript-to-Java communication works.

You can pass a javascript variable to the java while using the plugins as below.
cordova.exec(null, null, "service", "action", ["firstArgument", "secondArgument", 42]);
Here the first and second parameter to the exec method are the sucess and failure calllback.
service and action are the native class and method names respectively.
And the last parameter ["firstArgument", "secondArgument", 42] are the javascript variables which you can pass to the native method.
For more details please go through the following link.
http://docs.phonegap.com/en/2.8.0/guide_plugin-development_index.md.html

UserEmailAddressException when calling login() function in Liferay

I want to have LinkedIn authentication in my website. Their API returns the desired information, the create account function is working. However, I seem to have some problems when I try to login on the site.
It seems that I get a UserEmailAddressException when I call the LoginUtil.login method.
at com.liferay.portal.service.impl.UserLocalServiceImpl.authenticate(UserLocalServiceImpl.java:2480).
It fails at
if (authType.equals(CompanyConstants.AUTH_TYPE_EA)) {
if (!Validator.isEmailAddress(login)) {
throw new UserEmailAddressException();
}
}
Here is my code :
boolean rememberMe = true;
String authType = CompanyConstants.AUTH_TYPE_EA;
try {
LoginUtil.login(request, response,
String.valueOf(user.getUserId()), user.getPassword(), rememberMe, authType);
}
catch (UserEmailAddressException ueae) {
ueae.printStackTrace();
}
The users authenticate via email address, so I guess that should be the correct authentication type?
I have added company.security.auth.type=emailAddress in portal-ext.properties, but I get the same error as without this setting.
Because Liferay documentation is unsatisfying, I would like to know how to do a proper call to the login() function so that my user will login with its LinkedIn account.

It's hard to answer this question from the amount of code that you give.
First of all: About documentation. Judging by the use of LoginUtil, you seem to be modifying Liferay's internal code in order to implement your functionality. This is an internal API that is not guaranteed to be stable and will most likely be documented last (the API documentation has improved a lot, but it's mostly about the external, public API).
You might want to look into the implementation of ServletFilters that Liferay uses for implementing other external single sign on systems. Many customers/users have implemented these successfully (I haven't looked at the state of that documentation though, but there are several SSO implementations that you can find)
Further, it will probably help, which email address is supposed to be invalid - from your code it looks like you're calling with user.getUserId() (this is numeric), but you state that you demanded the login to be through email.
Lastly, if you have configured the login method through the UI, it is saved to the database - and that setting would win. So please check ControlPanel/Portal/Portal Settings/Authentication/"How do users authenticate?" to make sure that the setting is actually asking for the email address.