Authentication for Google Custom Search Api - google-api

Short question:
Does anyone have a working solution authenticating with the Google Custom Search Api, post April 20th 2015?
Longer version:
I am trying to use the Google Custom Search Api to request on-demand indexing.
Before I even get started I am running into issues with Authentication.
According to the documentation you should use the ClientLogin Api to authenticate.
This Api was closed down on April 20th 2015, and it now returns 404 when you try and get a token from it.
The deprecation notice on the ClientLogin documentation states to use Oauth instead.
I have therefore tried to authenticate pretty much the same as Hossein here
I am receiving a bearer token from Google, but when I try to make a request I get a 401 with the following message
<Error>You are not authorized to access this resource. If you feel this is an error, try re-logging into your Google Account.</Error>
This is no real surprise, since there is no uptodate documentation and I am blindly stumbling along trying to find a correct solution.
My current code in C#:
private static async Task Run()
{
var credential = new ServiceAccountCredential( new ServiceAccountCredential.Initializer("blablabla#developer.gserviceaccount.com")
{
Scopes = new[] { "https://www.googleapis.com/auth/cse" }
}.FromPrivateKey("-----BEGIN PRIVATE KEY-----...-----END PRIVATE KEY-----\n"));
await credential.RequestAccessTokenAsync(CancellationToken.None);
var token = credential.Token;
var client = new HttpClient();
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token.AccessToken);
var content =
new StringContent(
#"<?xml version=""1.0"" encoding=""UTF-8""?><OnDemandIndex><Pages><Page url=""http://url.com/to/be/indexed"" /></Pages></OnDemandIndex>");
content.Headers.ContentType = new MediaTypeHeaderValue("text/xml");
var result = await client.PostAsync("http://www.google.com/cse/api/{user_id}/index/{CSE_Id}", content);
var resultContent = await result.Content.ReadAsStringAsync();
Console.WriteLine(resultContent);
}
Does anyone have a solution running that works up against the www.google.com/cse/api/... endpoints?
Any language would be useful, just to know that it actually does work.

Related

Upload photos to Google Photos API - Error 500

I'm getting the error below while trying to upload media to Google Photos API, following the docs
This is how i retrieve my bytes array:
And this is how i make the request:
I've tried a lot of things and none of it work...
Note: I'm consuming other Google Photos API endpoints, such as Get Albums, Create Albums, Get Media and everything work as expected. The upload media is the only one i'm having trouble with.
Note 2: The token is being sent correctly.
Note 3: All the origin endpoints were configured in the google console (localhost included) so much so that other endpoints are working correctly.
Anyone can give me a light?
I am writing something similar in C# and was able to work with the photo api. My best advice is to double check headers. I hope this helps, additionally I added a postman screenshot of a successful call to the api:
public async Task<GoogleApiResponse> UploadPhoto(StorageFile photo)
{
var userInfo = UserInfoVault.GetUserInfo();
HttpClient client = new HttpClient();
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", userInfo.AccessToken);
client.DefaultRequestHeaders.Add("X-Goog-Upload-File-Name", photo.DisplayName);
var fileStream = await photo.OpenAsync(FileAccessMode.Read);
var reader = new DataReader(fileStream.GetInputStreamAt(0));
await reader.LoadAsync((uint)fileStream.Size);
byte[] pixels = new byte[fileStream.Size];
reader.ReadBytes(pixels);
var httpContent = new ByteArrayContent(pixels);
httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
HttpResponseMessage photoResponse = client.PostAsync(ApiEdnpoints.UploadPhoto, httpContent).Result;
string strResponse = await photoResponse.Content.ReadAsStringAsync();
return null;
}
Postman screenshot of successful call to upload a photo

Authenticating a Xamarin Android app using Azure Active Directory fails with 401 Unauthorzed

I am trying to Authenticate a Xamarin Android app using Azure Active Directory by following article here:
https://blog.xamarin.com/authenticate-xamarin-mobile-apps-using-azure-active-directory/
I have registered a native application with AAD; note that i havent given it any additional permissions beyond creating it.
Then i use the below code to authenticate the APP with AAD
button.Click += async (sender, args) =>
{
var authContext = new AuthenticationContext(commonAuthority);
if (authContext.TokenCache.Count > 0)
authContext = new AuthenticationContext(authContext.TokenCache.ReadItems().GetEnumerator().Current.Authority);
authResult = await authContext.AcquireTokenAsync(graphResourceUri, clientId, returnUri, new PlatformParameters(this));
SetContentView(Resource.Layout.Main);
doGET("https://management.azure.com/subscriptions/{subscription-id}/resourceGroups/OPSLABRG/providers/Microsoft.Compute/virtualMachines/LABVM?api-version=2015-08-01", authResult.AccessToken);
};
private string doGET(string URI, String token)
{
Uri uri = new Uri(String.Format(URI));
// Create the request
var httpWebRequest = (HttpWebRequest)WebRequest.Create(uri);
httpWebRequest.Headers.Add(HttpRequestHeader.Authorization, "Bearer " + token);
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "GET";
// Get the response
HttpWebResponse httpResponse = null;
try
{
httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
}
catch (Exception ex)
{
Toast.MakeText(this, "Error from : " + uri + ": " + ex.Message, ToastLength.Long).Show();
return null;
}
}
This seems to be getting a token when using a Work account.
Using a valid hotmail account throws error A Bad Request was received.
However the main problem is when i try to retrieve VM details using REST.
the REST GET method fails with 401 Unauthorized error even when using the Work account.
I am not sure if the code is lacking something or if i need to give some additional permissions for the App. This needs to be able to support authenticating users from other tenants to get VM details.
Any guidance is appreciated.
note that i havent given it any additional permissions beyond creating
it.
This is the problem here.
In order for you to call the Azure Management API https://management.azure.com/, you must first register your application to have permissions to call this API.
You can do that as a part of your app registration like so:
Only at that point, will your app be authorized to call ARM, and your calls should start to work.
According to your description, I checked this issue on my side. As Shawn Tabrizi mentioned that you need to assign the delegated permission for accessing ARM Rest API. Here is my code snippet, you could refer to it:
var context = new AuthenticationContext($"https://login.windows.net/{tenantId}");
result = await context.AcquireTokenAsync(
"https://management.azure.com/"
, clientId, new Uri("{redirectUrl}"), platformParameter);
I would recommend you using Fiddler or Postman to simulate the request against ARM with the access_token to narrow this issue. If any errors, you could check the detailed response for troubleshooting the cause.
Here is my test for retrieving the basic information of my Azure VM:
Additionally, you could leverage jwt.io for decoding your access_token and check the related properties (e.g. aud, iss, etc.) as follows to narrow this issue.

Get "API key is missing" error when querying account details to Mailchimp API 3.0 using RestSharp

When using RestSharp to query account details in your MailChimp account I get a "401: unauthorized" with "API key is missing", even though it clearly isn't!
We're using the same method to create our RestClient with several different methods, and in all requests it is working flawlessly. However, when we're trying to request the account details, meaning the RestRequest URI is empty, we get this weird error and message.
Examples:
private static RestClient CreateApi3Client(string apikey)
{
var client = new RestClient("https://us2.api.mailchimp.com/3.0");
client.Authenticator = new HttpBasicAuthenticator(null, apiKey);
return client;
}
public void TestCases() {
var client = CreateApi3Client(_account.MailChimpApiKey);
var req1 = new RestRequest($"lists/{_account.MailChimpList}/webhooks", Method.GET);
var res1 = client.Execute(req1); // works perfectly
var req2 = new RestRequest($"automations/{account.MailChimpTriggerEmail}/emails", Method.GET);
var res2 = client.Execute(req2); // no problem
var req3 = new RestRequest(Method.GET);
var res3 = client.Execute(req3); // will give 401, api key missing
var req4 = new RestRequest(string.Empty, Method.GET);
var res4 = client.Execute(req4); // same here, 401
}
When trying the api call in Postman all is well. https://us2.api.mailchimp.com/3.0, GET with basic auth gives me all the account information and when debugging in c# all looks identical.
I'm trying to decide whether to point blame to a bug in either RestSharp or MailChimp API. Has anyone had a similar problem?
After several hours we finally found what was causing this..
When RestSharp is making the request to https://us2.api.mailchimp.com/3.0/ it's opting to omit the trailing '/'
(even if you specifically add this in the RestRequest, like: new RestRequest("/", Method.GET))
so the request was made to https://us2.api.mailchimp.com/3.0
This caused a serverside redirect to 'https://us2.api.mailchimp.com/3.0/' (with the trailing '/') and for some reason this redirect scrubbed away the authentication header.
So we tried making a
new RestRequest("/", Method.GET)
with some parameters (req.AddParameter("fields", "email")) to make it not scrub the trailing '/', but this to was failing.
The only way we were able to "fool" RestSharp was to write it a bit less sexy like:
new RestRequest("/?fields=email", Method.GET)

Migration of Google Apps Marketplace app to oAuth 2.0 with additional scopes

We have app using oauth 1.0 in old marketplace. We are in process of migrating to oauth 2.0 for new marketplace. We are using UpgradeableApp API to do migration for existing domains. I am following steps specified here : https://developers.google.com/apps-marketplace/v1migratev2
As mentioned in the prerequisites in the above link: The scopes for the new and old apps must be compatible. But our new app has some additional scopes. Is there any way to grant access to these additional scopes while doing migration.
Only domain's admin or users can approve additional scopes.
Domain's admin receives an email notification after upgrade.
In your oauth2.0 app you can detect if all scopes have been approved or not. If not, you can show the user appropriate message to contact domain admin to get scopes approved.
For this we should have same scope in both old as well as on new listing. I am also facing the same problem of migrating the old users to new one. Kindly check the below code how I am migrating from old to new Users but every time I am getting 401 UnAuthorized, May I know what I am missing for this.
String url = String.Format("https://www.googleapis.com/appsmarket/v2/upgradableApp/{0}/{1}/{2}", oldAppId, chromeListing, domain);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "PUT";
request.ContentType = "application/json";
request.Accept = "application/json";
request.ProtocolVersion = HttpVersion.Version11;
request.Credentials = CredentialCache.DefaultCredentials;
request.Headers.Add("Authorization", "OAuth");
Hashtable postObj = new Hashtable();
postObj["Consumer Key"] = oldClientId;
postObj["Consumer Key Secret"] = oldSecret;
String s1 = new JavaScriptSerializer().Serialize(postObj);
var bs = Encoding.UTF8.GetBytes(s1);
using (Stream reqStream = request.GetRequestStream())
{
reqStream.Write(bs, 0, bs.Length);
}
using (WebResponse response = request.GetResponse())
{
using (var sr = new StreamReader(response.GetResponseStream()))
{
result = sr.ReadToEnd();
sr.Close();
}
}

Google+ insert moment using google-api-dotnet-client

I am trying to write an activity in Google+ using the dotnet-client. The issue is that I can't seem to get the configuration of my client app correctly. According to the Google+ Sign-In configuration and this SO question we need to add the requestvisibleactions parameter. I did that but it did not work. I am using the scope https://www.googleapis.com/auth/plus.login and I even added the scope https://www.googleapis.com/auth/plus.moments.write but the insert still did not work.
This is what my request url looks like:
https://accounts.google.com/ServiceLogin?service=lso&passive=1209600&continue=https://accounts.google.com/o/oauth2/auth?scope%3Dhttps://www.googleapis.com/auth/plus.login%2Bhttps://www.googleapis.com/auth/plus.moments.write%26response_type%3Dcode%26redirect_uri%3Dhttp://localhost/%26state%3D%26requestvisibleactions%3Dhttp://schemas.google.com/AddActivity%26client_id%3D000.apps.googleusercontent.com%26request_visible_actions%3Dhttp://schemas.google.com/AddActivity%26hl%3Den%26from_login%3D1%26as%3D-1fbe06f1c6120f4d&ltmpl=popup&shdf=Cm4LEhF0aGlyZFBhcnR5TG9nb1VybBoADAsSFXRoaXJkUGFydHlEaXNwbGF5TmFtZRoHQ2hpa3V0bwwLEgZkb21haW4aB0NoaWt1dG8MCxIVdGhpcmRQYXJ0eURpc3BsYXlUeXBlGgdERUZBVUxUDBIDbHNvIhTeWybcoJ9pXSeN2t-k8A4SUbfhsygBMhQivAmfNSs_LkjXXZ7bPxilXgjMsQ&scc=1
As you can see from there that there is a request_visible_actions and I even added one that has no underscore in case I got the parameter wrong (requestvisibleactions).
Let me say that my app is being authenticated successfully by the API. I can get the user's profile after being authenticated and it is on the "insert moment" part that my app fails. My insert code:
var body = new Moment();
var target = new ItemScope();
target.Id = referenceId;
target.Image = image;
target.Type = "http://schemas.google.com/AddActivity";
target.Description = description;
target.Name = caption;
body.Target = target;
body.Type = "http://schemas.google.com/AddActivity";
var insert =
new MomentsResource.InsertRequest(
// this is a valid service instance as I am using this to query the user's profile
_plusService,
body,
id,
MomentsResource.Collection.Vault);
Moment result = null;
try
{
result = insert.Fetch();
}
catch (ThreadAbortException)
{
// User was not yet authenticated and is being forwarded to the authorization page.
throw;
}
catch (Google.GoogleApiRequestException requestEx)
{
// here I get a 401 Unauthorized error
}
catch (Exception ex)
{
} `
For the OAuth flow, there are two issues with your request:
request_visible_actions is what is passed to the OAuth v2 server (don't pass requestvisibleactions)
plus.moments.write is a deprecated scope, you only need to pass in plus.login
Make sure your project references the latest version of the Google+ .NET client library from here:
https://developers.google.com/resources/api-libraries/download/stable/plus/v1/csharp
I have created a project on GitHub showing a full server-side flow here:
https://github.com/gguuss/gplus_csharp_ssflow
As Brettj said, you should be using the Google+ Sign-in Button as demonstrated in the latest Google+ samples from here:
https://github.com/googleplus/gplus-quickstart-csharp
First, ensure you are requesting all of the activity types you're writing. You will know this is working because the authorization dialog will show "Make your app activity available via Google, visible to you and: [...]" below the text that starts with "This app would like to". I know you checked this but I'm 90% sure this is why you are getting the 401 error code. The following markup shows how to render the Google+ Sign-In button requesting access to Add activities.
<div id="gConnect">
<button class="g-signin"
data-scope="https://www.googleapis.com/auth/plus.login"
data-requestvisibleactions="http://schemas.google.com/AddActivity"
data-clientId="YOUR_CLIENT_ID"
data-accesstype="offline"
data-callback="onSignInCallback"
data-theme="dark"
data-cookiepolicy="single_host_origin">
</button>
Assuming you have a PlusService object with the correct activity type set in data-requestvisibleactions, the following code, which you should be able to copy/paste to see it work, concisely demonstrates writing moments using the .NET client and has been tested to work:
Moment body = new Moment();
ItemScope target = new ItemScope();
target.Id = "replacewithuniqueforaddtarget";
target.Image = "http://www.google.com/s2/static/images/GoogleyEyes.png";
target.Type = "";
target.Description = "The description for the activity";
target.Name = "An example of add activity";
body.Target = target;
body.Type = "http://schemas.google.com/AddActivity";
MomentsResource.InsertRequest insert =
new MomentsResource.InsertRequest(
_plusService,
body,
"me",
MomentsResource.Collection.Vault);
Moment wrote = insert.Fetch();
Note, I'm including Google.Apis.Plus.v1.Data for convenience.
Ah it's that simple! Maybe not? I am answering my own question and consequently accept it as the answer (after a few days of course) so others having the same issue may be guided. But I will definitely up-vote Gus' answer for it led me to the fix for my code.
So according to #class answer written above and as explained on his blog the key to successfully creating a moment is adding the request_visible_actions parameter. I did that but my request still failed and it is because I was missing an important thing. You need to add one more parameter and that is the access_type and it should be set to offline. The OAuth request, at a minimum, should look like: https://accounts.google.com/o/oauth2/auth?scope=https://www.googleapis.com/auth/plus.login&response_type=code&redirect_uri=http://localhost/&request_visible_actions=http://schemas.google.com/AddActivity&access_type=offline.
For the complete and correct client code you can get Gus' example here or download the entire dotnet client library including the source and sample and add what I added below. The most important thing that you should remember is modifying your AuthorizationServerDescription for the Google API. Here's my version of the authenticator:
public static OAuth2Authenticator<WebServerClient> CreateAuthenticator(
string clientId, string clientSecret)
{
if (string.IsNullOrWhiteSpace(clientId))
throw new ArgumentException("clientId cannot be empty");
if (string.IsNullOrWhiteSpace(clientSecret))
throw new ArgumentException("clientSecret cannot be empty");
var description = GoogleAuthenticationServer.Description;
var uri = description.AuthorizationEndpoint.AbsoluteUri;
// This is the one that has been documented on Gus' blog site
// and over at Google's (https://developers.google.com/+/web/signin/)
// This is not in the dotnetclient sample by the way
// and you need to understand how OAuth and DNOA works.
// I had this already, see my original post,
// I thought it will make my day.
if (uri.IndexOf("request_visible_actions") < 1)
{
var param = (uri.IndexOf('?') > 0) ? "&" : "?";
description.AuthorizationEndpoint = new Uri(
uri + param +
"request_visible_actions=http://schemas.google.com/AddActivity");
}
// This is what I have been missing!
// They forgot to tell us about this or did I just miss this somewhere?
uri = description.AuthorizationEndpoint.AbsoluteUri;
if (uri.IndexOf("offline") < 1)
{
var param = (uri.IndexOf('?') > 0) ? "&" : "?";
description.AuthorizationEndpoint =
new Uri(uri + param + "access_type=offline");
}
// Register the authenticator.
var provider = new WebServerClient(description)
{
ClientIdentifier = clientId,
ClientSecret = clientSecret,
};
var authenticator =
new OAuth2Authenticator<WebServerClient>(provider, GetAuthorization)
{ NoCaching = true };
return authenticator;
}
Without the access_type=offline my code never worked and it will never work. Now I wonder why? It would be good to have some explanation.

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