Suggest me one API to retrieve items based on URL (just like if we give drive id it will retrieve all the details same like if we give URL it should retrun details what inside those folders )
private static final String URL_LIST_DRIVES = "https://graph.microsoft.com/v1.0/me/drives";
private static final String URL_LIST_DRIVE_ITEMS = "https://graph.microsoft.com/v1.0/me/drives/%s/root/children";
private static final String URL_LIST_FOLDER_ITEMS = "https://graph.microsoft.com/v1.0/me/drives/%s/items/%s/children";
private static final String URL_ITEM_CONTENT = "https://graph.microsoft.com/v1.0/me/drives/%s/items/%s/content";
Related
SignupUrl signupUrl = androidManagementClient
.signupUrls()
.create()
.setProjectId(CLOUD_PROJECT_ID)
.setCallbackUrl(CALLBACKURL).execute();
causes the app to crash due to NPE
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'com.google.api.services.androidmanagement.v1.AndroidManagement$SignupUrls com.google.api.services.androidmanagement.v1.AndroidManagement.signupUrls()' on a null object reference
Has anyone seen this before? I've followed all the prerequisites to developing and am currently going of off the sample app, and this is the piece of code that crashes. What could be the reason?
https://developers.google.com/android/management/sample-app
Update as per request:
Code
EnterpriseHelperClass - I'd like to do this programmatically even though I know this can easily be executed via the quickstart guide.
public class EnterpriseCreationHelper {
private static final String CALLBACKURL =
"https://play.google.com/work/adminsignup?enterpriseToken";
private static final String TAG = "MainActivity";
private static String CLOUD_PROJECT_ID = "******-";
private static String SERVICE_ACCOUNT = "****#****-.iam.gserviceaccount.com";
private static String CREDENTIALS_FILE =
"/Users/****/appname/src/******.json";
private static String POLICY_ID = "samplePolicy";
private static AndroidManagement androidManagementClient;
public EnterpriseCreationHelper(AndroidManagement androidManagementClient){
EnterpriseCreationHelper.androidManagementClient = androidManagementClient;
}
public void run() throws IOException {
Your androidManagementClient value is null.
Kindly share the initialisation method of androidManagementClient it will be helpful for us to answer
Thanks
Looks like getAndroidManagementClient is returning a null object, which results in setting androidManagementClient to null. Make sure your credentials are correct, and that this method returns successfully.
Saving KeyForHmacSha256, TokenIssuer, TokenAudience and TokenLifetimeMinutes in static filed is best practice or read these value from config file.
public class SecurityConstants
{
public static readonly byte[] KeyForHmacSha256 = new byte[64];
public static readonly string TokenIssuer = string.Empty;
public static readonly string TokenAudience = string.Empty;
public static readonly double TokenLifetimeMinutes = 1;
static SecurityConstants()
{
RNGCryptoServiceProvider cryptoProvider = new RNGCryptoServiceProvider();
cryptoProvider.GetNonZeroBytes(KeyForHmacSha256);
TokenIssuer = "issuer";
TokenAudience = "http://localhost:90";
}
}
As with about anything, the answer is "it depends."
I would certainly make the argument that the KeyForHmacSha256 variable is pulled from a config file or environment variable, just to keep it out of source control.
Personally, I usually pull in issuer and audience dynamically. The issuer is pulled from the environment so that I don't have to manually set it in each deploy and the audience is determined by who is requesting the token.
The token lifetime has the best case for just being a static definition. If you have a need to make it dynamic, you will need to handle that, but setting it explicitly isn't a security issue.
I have visited and read all the Valence, and specifically the REST API, pages. I have one approved key already and a second key that has not yet been approved by D2L, and it's not clear how I request that approval.
The documentation contains a lot of information, but it is difficult to put all the pieces together. For example, in order to make any REST API call, I have to add several parameters to the end of the call. The parameters are documented in one place, but it isn't clear in some cases how to construct them (for example, one of the keys is to contain the url, timestamp, and the type of call being made, but how are they to be concatenated?). Then they have to be signed, and the documentation that tells how to sign the keys is in a completely different page that is not even referenced from the page that tells you that you have to sign the parameters. On top of that, the documentation is not extremely clear about how to do the signing, and offers no further explanation or examples. So to get anywhere, we have to jump around a lot through the documentation, and go through a whole lot of trial and error. It appears that the documentation assumes that the reader has expertise in several areas, which may or may not be true.
Code examples would make a huge difference.
There aren’t a lot of samples yet; we are working to add more, and to make the ones that are present more obvious. As one example, there is a Java Android app that has all the authentication stuff and some basic calls (including the call “whoami” which is a great test call).
The specific auth related files are available as well. From the D2LSigner class, you can see the signing algorithm we use:
Mac hmacSha256 = Mac.getInstance("hmacSHA256");
byte[] keyBytes = key.getBytes("UTF-8");
Key k = new SecretKeySpec(keyBytes, "hmacSHA256");
hmacSha256.init(k);
byte[] dataBytes = data.getBytes("UTF-8");
byte[] sig = hmacSha256.doFinal(dataBytes)
String sigString = base64Url( sig );
From D2LOperationSecurityImpl, you can see how the query string fits together:
//uppercase METHOD, lowercase PATH, timestamp as string
private static /*final*/ String BASE_STRING_TEMPLATE = "{0}&{1}&{2}";
private static /*final*/ String APP_ID_QUERY_NAME = "x_a";
private static /*final*/ String APP_SIG_QUERY_NAME = "x_c";
private static /*final*/ String USER_ID_QUERY_NAME = "x_b";
private static /*final*/ String USER_SIG_QUERY_NAME = "x_d";
private static /*final*/ String TIMESTAMP_QUERY_NAME = "x_t";
...
#Override
public Uri createAuthenticatedUri(String path, String httpMethod) {
long timestamp = System.currentTimeMillis() +
mServerSkewCorrectionMillis.longValue();
Long timestampObjectSeconds = new Long(timestamp/1000);
Object[]formatParms = {httpMethod.toUpperCase(),
path.toLowerCase(),
timestampObjectSeconds.toString()};
String signatureBaseString = MessageFormat.format(BASE_STRING_TEMPLATE,
formatParms);
String appSig = D2LSigner.base64URLSig(mAppKey, signatureBaseString);
String userSig = D2LSigner.base64URLSig(mUserKey, signatureBaseString);
if ((appSig == null) || (userSig == null)) {
return null;
}
String scheme = mEncryptOperations?ENCRYPED_SCHEME:PLAIN_SCHEME;
Uri.Builder b = new Uri.Builder();
b.scheme(scheme);
b.authority(mHostName);
b.path(path);
b.appendQueryParameter(APP_ID_QUERY_NAME, mAppID);
b.appendQueryParameter(APP_SIG_QUERY_NAME, appSig);
b.appendQueryParameter(USER_ID_QUERY_NAME, mUserID);
b.appendQueryParameter(USER_SIG_QUERY_NAME, userSig);
b.appendQueryParameter(TIMESTAMP_QUERY_NAME, timestampObjectSeconds.toString());
Uri securedURI = b.build();
return securedURI;
}
Also, you need to sign the first URL you use for logging in, but only with the application key (because you haven't yet established a user context). It uses a different base string (to protect the URL that is used during auth):
String signature = D2LSigner.base64URLSig(mAppKey, resultURLString);
BasicNameValuePair appID = new BasicNameValuePair(APP_ID_NAME, mAppID);
BasicNameValuePair appSig = new BasicNameValuePair(APP_SIG_NAME, signature);
BasicNameValuePair callbackURL = new BasicNameValuePair(CALLBACK_NAME, resultURLString);
I have to post a message from my android application to Google Reader. I'm Authenticating with ClientLogin and using the Google Reader API.When I'm trying to send the authentication request it's giving an error.
HTTP/1.1 404 Not Found
I think the client was able to communicate with the server but the server could not find what was requested.I'm giving the following url
postURL = "http://www.google.com/reader/api/0/edit" as
HttpPost post = new HttpPost(postURL);.
Please tell me the solution to resolve this issue.
If you're using ClientLogin you will probably need only 2 kinds of tokens to do what you need with the unnoficial Google Reader API:
Authentication Token - This is the main authentication token, and you'll need to send this in the header of every GET/POST request to the API, otherwise you'll get an error (not the one you're having, though). You can do a POST to this url for this (I have a full code example ahead): https://www.google.com/accounts/ClientLogin
Edit Token - This is the edit token, and you'll need to send this as a form parameter of POST request to any edit APIs (like the http://www.google.com/reader/api/0/edit you've mentioned). You can do a GET to this url for this (I have a code example ahead): http://www.google.com/reader/api/0/token
Getting to the 404 error you're reporting, it must be that you have a typo in your url. Copy my url and try it out. Double check it, side by side. Here is the Java code I've used for this - you can try it out also:
private static final String _AUTHPARAMS = "GoogleLogin auth=";
private static final String _GOOGLE_LOGIN_URL = "https://www.google.com/accounts/ClientLogin";
private static final String _READER_BASE_URL = "http://www.google.com/reader/";
private static final String _API_URL = _READER_BASE_URL + "api/0/";
private static final String _TOKEN_URL = _API_URL + "token";
private static final String _USER_INFO_URL = _API_URL + "user-info";
private static final String _USER_LABEL = "user/-/label/";
private static final String _TAG_LIST_URL = _API_URL + "tag/list";
private static final String _EDIT_TAG_URL = _API_URL + "tag/edit";
private static final String _RENAME_TAG_URL = _API_URL + "rename-tag";
private static final String _DISABLE_TAG_URL = _API_URL + "disable-tag";
private static final String _SUBSCRIPTION_URL = _API_URL
+ "subscription/edit";
private static final String _SUBSCRIPTION_LIST_URL = _API_URL
+ "subscription/list";
public static String getGoogleAuthKey() throws IOException {
String _USERNAME = "USER_EMAIL#gmail.com";
String _PASSWORD = "USER_PASSWORD";
Document doc = Jsoup
.connect(_GOOGLE_LOGIN_URL)
.data("accountType", "GOOGLE", "Email", _USERNAME, "Passwd",
_PASSWORD, "service", "reader", "source",
"[YOUR_APP_ID_GOES_HERE].apps.googleusercontent.com")
.userAgent("[YOUR_APP_ID_GOES_HERE].apps.googleusercontent.com")
.timeout(4000).post();
// RETRIEVES THE RESPONSE TEXT inc SID and AUTH. We only want the AUTH
// key.
String _AUTHKEY = doc
.body()
.text()
.substring(doc.body().text().indexOf("Auth="),
doc.body().text().length());
_AUTHKEY = _AUTHKEY.replace("Auth=", "");
return _AUTHKEY;
}
You can see a code example for getting the edit token and doing an edit in my answer to this other question.
See my answer to this one if you want documentation (unofficial but well structured) - there is no official doc...
The code is based on http://www.chrisdadswell.co.uk/android-coding-example-authenticating-clientlogin-google-reader-api/
I am using the openx api to insert advertisers/campaigns/banners but I cannot seem to find any documentation on geo-targeting a campaign or banner via the API. Can this be done, or am I going to have to start injecting directly into the database.
I did not find anything in the documentation either, however I was able to find how to do it.
Below is the java code. I used the method setBannerTargeting from BannerXmlRpcService.php.
public static String GEO_CONTINENT_LIMITATION = "deliveryLimitations:Geo:Continent";
public static String GEO_COUNTRY_LIMITATION = "deliveryLimitations:Geo:Country";
map = new HashMap();
public static String[] CONTINENTS = new String[]{
"AS","EU","AF","OC","CA","SA","NA","AQ",
};
public static String CONTAINS_OPERATOR = "=~";
public static String OR_LOGICAL_OPERATOR = "or";
..........................
List list = new ArrayList();
HashMap targeting = new HashMap();
targeting.put("logical",Targeting.OR_LOGICAL_OPERATOR);
targeting.put("type",Targeting.GEO_CONTINENT_LIMITATION);
targeting.put("comparison",Targeting.CONTAINS_OPERATOR);
targeting.put("data",Targeting.CONTINENTS[1]);
list.add(targeting);
...........................
map.put("aTargeting",list);
proxy.setTargeting(bannerID,list);