I want to make a call using VoiceResponse for all the info on how the call should work, but I can't seem to find how to generate a URI for the call to use (because it requires phone number, phone number, URI in the Call.creator method)
StringBuilder messageB = new StringBuilder();
for(int i = 2; i < input.split(" ").length; i++) {
messageB.append(" " + input.split(" ")[i]);
}
Say say = new Say.Builder(messageB.toString().replace(" ", "%20")).voice(Say.Voice.POLLY_JUSTIN).build();
Record recording = new Record.Builder().build();
Pause pause = new Pause.Builder().length(3).build();
TwiML response = new VoiceResponse.Builder().say(say).record(recording).pause(pause).build();
String Url = "http://twimlets.com/message";
Url = Url + "?Message%5B0%5D=" + messageB.toString();
Call call = Call.creator(
new PhoneNumber("+" + input.split(" ")[1]),
new PhoneNumber("+xxxxxxxxxxx"),
URI.create(Url))
.create();
System.out.println("Call ID: " + call.getSid());
System.out.println(Url);
Twilio developer evangelist here.
You can't use a VoiceResponse at the time you are making an API call to Twilio to start a call.
Instead, you need to set up a web application that can respond to incoming HTTP (webhook) requests from Twilio. When the call connects, Twilio will make a request to the URL you send as part of the request and you can use the VoiceResponse at that point to build and return the response you want.
You might find it useful to follow one of our tutorials to better understand this. Here's one on building a click to call system with Java.
Let me know if this helps at all.
Related
When Twilio invokes a callback method to fetch the TwiML <Say> for Voice, I see that Twilio sets "x-twilio-signature" in the HTTP header.
I need to verify that the actual request came from Twilio.
I have a simple war file running on Tomcat and the app is built using Spring.
I did something like the following:
//Get the TwilioUtils object initialized
TwilioUtils twilioUtils = new TwilioUtils("******myAuthToken");
//Get the URL from HttpRequest
String url = httpRequest.getRequestURL().toString();
Map<String, String> allRequestParams = getAllRequestParams(httpRequest);
Map<String, String> headers = getAllRequestHeaders(httpRequest);
//Get the signature generated for the Url and request parameters
//allRequestParams is a map of all request values posted to my service by Twilio
String validSig = twilioUtils.getValidationSignature(url, allRequestParams);
//Get the x-twilio-signature value from the http header map
String xTwilioSignature = headers.get("x-twilio-signature”);
//This is different from what I get below
logger.info("validSig = " + validSig);
logger.info("xTwilioSignature = " + xTwilioSignature );
//This is always false
logger.info("Signature matched : " + twilioUtils.validateRequest(xTwilioSignature, url,
allRequestParams));
I would like to know what am I doing wrong. Is my approach to validate "x-twilio-signature" incorrect?
If it is incorrect, what's the right way to do it?
I am using the helper library class TwilioUtils provided by Twilio to validate it.
All the time the signature from Twilio is different from what I get from the TwilioUtils object.
Megan from Twilio here.
Are you following the steps suggested in the security documentation?
validateRequest expects three arguments. I believe you're missing the url there.
Consider this example:
public class TwilioUtilsExample {
public static void main(String[] args) {
// Account details
String accountSid = "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
String authToken = "YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY";
//This is the signature we expect
String expected_sig = "SSSSSSSSSSSSSSSSSSSSSSSSSSSS";
//This is the url that twilio requested
String url = "http://UUUUUUUUUUUUUUU";
//These are the post params twilio sent in its request
Map<String,String> params = new HashMap<String,String>();
// Be sure to see the signing notes at twilio.com/docs/security
TwilioUtils util = new TwilioUtils(authToken, accountSid);
boolean result = util.validateRequest(expected_sig, url, params);
if (result) {
System.out.print( "The signature is valid!\n" );
} else {
System.out.print( "The signature was NOT VALID. It might have been spoofed!\n" );
}
}
}
Hope this is helpful!
I have a PNR Inquiry app on Google Play. It was working very fine. But recently Indian Railwys added captcha to their PNR Inquiry section and because of this I am not able to pass proper data to the server to get proper response. How to add this captcha in my app in form of an imageview and ask the users to enter captcha details also so that I can send proper data and get proper response.
Indian Railways PNR Inquiry Link
If you check the html code, its actualy pretty bad captcha.
Background of captcha is: http://www.indianrail.gov.in/1.jpg
Those numbers are actualy in input tag:
<input name="lccp_cap_val" value="14167" id="txtCaptcha" type="hidden">
What they are doing is, via javascript, use numbers from that hidden input tag
and put them on that span with "captcha" background.
So basicaly your flow is:
read their html
get "captcha" (lol, funny captcha though) value from input field
when user puts data in your PNR field and presses Get Status
post form field, put PNR in proper value, put captcha in proper value
parse response
Oh yeah, one more thing. You can put any value in hidden input and "captcha"
input, as long as they are the same. They aren't checking it via session or
anything.
EDIT (code sample for submiting form):
To simplify posting form i recommend HttpClient components from Apache:
http://hc.apache.org/downloads.cgi
Lets say you downloaded HttpClient 4.3.1. Include client, core and mime
libraries in your project (copy to libs folder, right click on project,
properties, Java Build Path, Libraries, Add Jars -> add those 3.).
Code example would be:
private static final String FORM_TARGET = "http://www.indianrail.gov.in/cgi_bin/inet_pnstat_cgi.cgi";
private static final String INPUT_PNR = "lccp_pnrno1";
private static final String INPUT_CAPTCHA = "lccp_capinp_val";
private static final String INPUT_CAPTCHA_HIDDEN = "lccp_cap_val";
private void getHtml(String userPnr) {
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
builder.addTextBody(INPUT_PNR, userPnr); // users PNR code
builder.addTextBody(INPUT_CAPTCHA, "123456");
builder.addTextBody("submit", "Get Status");
builder.addTextBody(INPUT_CAPTCHA_HIDDEN, "123456"); // values don't
// matter as
// long as they
// are the same
HttpEntity entity = builder.build();
HttpPost httpPost = new HttpPost(FORM_TARGET);
httpPost.setEntity(entity);
HttpClient client = new DefaultHttpClient();
HttpResponse response = null;
String htmlString = "";
try {
response = client.execute(httpPost);
htmlString = convertStreamToString(response.getEntity().getContent());
// now you can parse this string to get data you require.
} catch (Exception letsIgnoreItForNow) {
}
}
private static String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append(line);
}
} catch (IOException ignoredOnceMore) {
} finally {
try {
is.close();
} catch (IOException manyIgnoredExceptions) {
}
}
return sb.toString();
}
Also, be warned i didn't wrap this in async call, so you will have to do that.
Image from the network can be displayed in android via efficient image loading api's like Picasso/volley or simply image view via async task.
considering all above things as basic build a logic such that you should need a image URL for that captcha if user resets or refresh the captcha it should reload new image via network call requesting the new request implementation, you have to get REST api access to the Indian railway and check in that any image uri available in that (it may be in base64 format )
if REST API is not available you may think of building your own server with this code
RESTful API to check the PNR Status
pnrapi
Update: you don't need to do this complex hacks , just implement Drago's answer !
I'm looking to leverage RackSpace's CloudFiles platform for large object storage (word docs, images, etc). Following some of their guides, I found a useful code snippet, that looks like it should work, but doesn't in my case.
Iterable<Module> modules = ImmutableSet.<Module> of(
new Log4JLoggingModule());
Properties properties = new Properties();
properties.setProperty(LocationConstants.PROPERTY_ZONE, ZONE);
properties.setProperty(LocationConstants.PROPERTY_REGION, "ORD");
CloudFilesClient cloudFilesClient = ContextBuilder.newBuilder(PROVIDER)
.credentials(username, apiKey)
.overrides(properties)
.modules(modules)
.buildApi(CloudFilesClient.class);
The problem is that when this code executes, it tries to log me in the IAD (Virginia) instance of CloudFiles. My organization's goal is to use the ORD (Chicago) instance as primary to be colocated with our cloud and use DFW as a back up environment. The login response results in the IAD instance coming back first, so I'm assuming JClouds is using that. Browsing around, it looks like the ZONE/REGION attributes are ignored for CloudFiles. I was wondering if there is any way to override the code that comes back for authentication to loop through the returned providers and choose which one to login to.
Update:
The accepted answer is mostly good, with some more info available in this snippet:
RestContext<CommonSwiftClient, CommonSwiftAsyncClient> swift = cloudFilesClient.unwrap();
CommonSwiftClient client = swift.getApi();
SwiftObject object = client.newSwiftObject();
object.getInfo().setName(FILENAME + SUFFIX);
object.setPayload("This is my payload."); //input stream.
String id = client.putObject(CONTAINER, object);
System.out.println(id);
SwiftObject obj2 = client.getObject(CONTAINER,FILENAME + SUFFIX);
System.out.println(obj2.getPayload());
We are working on the next version of jclouds (1.7.1) that should include multi-region support for Rackspace Cloud Files and OpenStack Swift. In the meantime you might be able to use this code as a workaround.
private void uploadToRackspaceRegion() {
Iterable<Module> modules = ImmutableSet.<Module> of(new Log4JLoggingModule());
String provider = "swift-keystone"; //Region selection is limited to swift-keystone provider
String identity = "username";
String credential = "password";
String endpoint = "https://identity.api.rackspacecloud.com/v2.0/";
String region = "ORD";
Properties overrides = new Properties();
overrides.setProperty(LocationConstants.PROPERTY_REGION, region);
overrides.setProperty(Constants.PROPERTY_API_VERSION, "2");
BlobStoreContext context = ContextBuilder.newBuilder(provider)
.endpoint(endpoint)
.credentials(identity, credential)
.modules(modules)
.overrides(overrides)
.buildView(BlobStoreContext.class);
RestContext<CommonSwiftClient, CommonSwiftAsyncClient> swift = context.unwrap();
CommonSwiftClient client = swift.getApi();
SwiftObject uploadObject = client.newSwiftObject();
uploadObject.getInfo().setName("test.txt");
uploadObject.setPayload("This is my payload."); //input stream.
String eTag = client.putObject("jclouds", uploadObject);
System.out.println("eTag = " + eTag);
SwiftObject downloadObject = client.getObject("jclouds", "test.txt");
System.out.println("downloadObject = " + downloadObject.getPayload());
context.close();
}
Use swift as you would Cloud Files. Keep in mind that if you need to use Cloud Files CDN stuff, the above won't work for that. Also, know that this way of doing things will eventually be deprecated.
I want to share some information in google plus wall from my application.and I am trying for moment.insert, But getting 400 error . Can somebody help me
#Override
public JSONObject getGooglePlusAddUseractivities(Object token) {
Token accessToken = (Token) token;
OAuthService service = createOAuthServiceForGooglePlus();
OAuthRequest request = new OAuthRequest(Method.POST,"https://www.googleapis.com/plus/v1/people/me/moments/vault");
request.addQuerystringParameter("alt", "json");
service.signRequest(accessToken, request);
JSONObject object=new JSONObject();
try {
object.put("kind","plus#moment");
object.put("type","http://schemas.google.com/AddActivity");
JSONObject obj1=new JSONObject();
obj1.put("kind", "plus#itemScope");
obj1.put("url","https://plus.google.com/me");
obj1.put("description","Sign up now to claim and redeem your credits while shopping! ");
obj1.put("image","http://invite.png");
obj1.put("contentUrl", "www.abcd.com");
obj1.put("thumbnailUrl", "http://logo1_favicon.png");
object.putOpt("target", obj1);;
}catch(Exception ex) {
ex.printStackTrace();
}
request.addPayload(object.toString());
request.addHeader("Content-Type", "application/json");
System.out.println("request : "+request.getBodyContents());
Response response = request.send();
String responseBody = response.getBody();
JSONObject googleJSON = null;
try {
googleJSON = new JSONObject(responseBody);
}
catch (JSONException e) {
System.out.println("can not create JSON Object");
}
getting 400 error ?? anyone can tell me..... where am wrong ..!!`
It isn't clear from the documentation, but you can't provide both the target.url and most other target metadata. This is currently opened as bug 485 in the issue tracking system - please go there and star the issue to make sure they properly prioritize a fix.
If you remove the target.url value and add a target.id value, it should work.
(As an aside, this does not post in the user's stream, but will post an App Activity in their app moment vault. They must manually share the activity if they choose.)
At this time, it is not possible to programmatically write to a user's Stream. As a developer, you have two options:
Write an AppActivity (formerly known as a Moment), which writes information to Google, but not to a Google+ Stream. These activities are visible at plus.google.com/apps, and will be used by Google in additional ways over time.
Create an Interactive Post Share button, which a user must initiate. However, you can pre-fill both the text of the post and up to 10 intended recipients. The user can make changes if they want and then perform the actual share. You can learn more at https://developers.google.com/+/web/share/interactive or by watching this Google+ Developers Live episode: http://www.youtube.com/watch?v=U4Iw28jWtAY.
My goal is to rapidly make posts to a server from appengine(java). I am attempting to do this using UrlFetchService.fetchAsync. I have been basing my code after this blog post. I have been able to make the request using the code below, however I get some strange behavior:
private void futureRequests() {
URLFetchService fetcher = URLFetchServiceFactory.getURLFetchService();
URL url = new URL("https://someserver.com");
FetchOptions fetchOptions = FetchOptions.Builder.withDefaults();
fetchOptions.doNotValidateCertificate();
fetchOptions.setDeadline(60D);
ArrayList<Future<HTTPResponse>> asyncResponses = new ArrayList<Future<HTTPResponse>>();
for (int i = 0; i < postDatas.size(); i++) {
HTTPRequest request = new HTTPRequest(url, HTTPMethod.POST, fetchOptions);
request.setPayload(postDatas.get(i).getBytes(UTF8));
HTTPHeader header = new HTTPHeader("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
request.setHeader(header);
header = new HTTPHeader("Content-Length", Integer.toString(postDatas.get(i).getBytes().length));
request.setHeader(header);
header = new HTTPHeader("Authorization", "auth=" + authToken);
request.setHeader(header);
Future<HTTPResponse> responseFuture = fetcher.fetchAsync(request);
asyncResponses.add(responseFuture);
}
for (Future<HTTPResponse> future : asyncResponses) {
HTTPResponse response;
try {
response = future.get();
int responseCode = response.getResponseCode();
resp.getWriter().println("response: " + responseCode);
logger.warning("Response: " + responseCode);
} catch (Exception e) {
}
}
}
The strange behavior is that I get duplicate posts on the server, and according to my appstats page I use 10x-20x more urlFetches than what was added with the code above. Below is my appstats screen:
There are more urlFetch calls that could not fit on the screen. It appears that the requests are still completing in a synchronous fashion(circled items), but there are many urlFetches that appear to go on at the same time. My question is how am I getting all this calls to urlFetch when I only had 14 Future ?? Could the server be giving an error or 503 and urlFetch retrying until it goes through? And how can I be getting 2 posts for each request??
I understand that I could use the task queue to do asyc request, however I am dealing with a relatively low number of request(20-100) and the cold start time of ramping up another instance would probably make this not a good option for my situation. Can anyone explain this behavior or have experience with this?
This was simply a mistake in my code that was causing my app to make more request than I thought..