This is a sample application which show how to use whocommerce using OAuth 1.0a “one-legged” authentication(HTTP).
This library is based on woocommerce api v1woocommerce-rest-api-docs
API Version - v1 WC Version - 2.6.x or later WP Version - 4.4 or later
Using the WooCommerce REST API
There are two ways to authenticate with the API, the easy way (over HTTPS) or the hard way (over plain HTTP using OAuth).
##Over HTTPS
Simply use HTTP Basic Auth by providing the API Consumer Key as the username and the API Consumer Secret as the password(ITS EASY WAY)
##Over HTTP with OAuth(HARD WAY)
HTTP Basic authentication cannot be used over plain HTTP as the keys are susceptible to interception. The API uses OAuth 1.0a “one-legged” authentication to ensure your API keys cannot be intercepted. This process involves generating a signature and including it with your request. The API then generates it’s own signature and compares it against the one provided. If they match, the request is authenticated. (SOURCE)
WoocommerceAndroidOAuth1 is making the hard way easy for android
You must use OAuth 1.0a "one-legged" authentication to ensure API credentials cannot be intercepted. Typically you may use any standard OAuth 1.0a library in your language of choice to handle the authentication, or generate the necessary parameters by following these instructions.
- Set the HTTP method for the request:
GET
- Set your base request URI -- this is the full request URI without query string parameters -- and URL encode according to RFC 3986:
http://www.example.com/wc-api/v1/orders
when encoded:
http%3A%2F%2Fwww.example.com%2Fwc-api%2Fv1%2Forders
-
Collect and normalize your query string parameters. This includes all
oauth_*parameters except for the signature. Parameters should be normalized by URL encoding according to RFC 3986 (rawurlencodein PHP) and percent(%) characters should be double-encoded (e.g.%becomes%25. -
Sort the parameters in byte-order (
uksort( $params, 'strcmp' )in PHP)// Android Way will describe below -
Join each parameter with an encoded equals sign (
%3D):
oauth_signature_method%3DHMAC-SHA1
- Join each parameter key/value with an encoded ampersand (
%26):
oauth_consumer_key%3Dabc123%26oauth_signature_method%3DHMAC-SHA1
- Form the string to sign by joining the HTTP method, encoded base request URI, and encoded parameter string with an unencoded ampersand symbol (&):
GET&http%3A%2F%2Fwww.example.com%2Fwc-api%2Fv1%2Forders&oauth_consumer_key%3Dabc123%26oauth_signature_method%3DHMAC-SHA1
- Generate the signature using the string to key and your consumer secret key
If you are having trouble generating a correct signature, you'll want to review your string to sign for errors with encoding. The authentication source can also be helpful in understanding how to properly generate the signature.(SOURCE FROM OFFICIAL woocommerce-rest-api-docs)
The Same methord is begin used but in Android WAY :) Lets get Started
-
add library woocommerseandroidoauth1library to gradle
compile project(':woocommerseandroidoauth1library')
2. Setting nonce and timestamp
```java
String nonce=new TimestampServiceImpl().getNonce();
String timestamp=new TimestampServiceImpl().getTimestampInSeconds();
-
Generate Base String (which is used to generate signatuekey)
String BASE_SITE = "yoursitename.com"; String BASE_URL = "http://"+BASE_SITE+"/wp-json/wc/v1/products";//AS a example listing product is used String COSTUMER_KEY = "costumer key here"; String COSTUMER_SECRET = "costumer secret here"; String METHORD="GET";//change API method eg POST,PUT, DELETE etc (ONLY FOR THIS EXAMPLE FOR LIB LIKE RETROFIT,OKHTTP, The Are Dynamic Way) String firstEncodedString =METHORD+"&"+encodeUrl(BASE_URL); Log.d("firstEncodedString",firstEncodedString); String parameterString="oauth_consumer_key="+COSTUMER_KEY+"&oauth_nonce="+nonce+"&oauth_signature_method=HMAC-SHA1&oauth_timestamp="+timestamp+"&oauth_version=1.0"; String secoundEncodedString="&"+encodeUrl(parameterString); Log.d("secoundEncodedString",secoundEncodedString); //The base String is used to generate signature String baseString=firstEncodedString+secoundEncodedString;
4. Generate Signature (using generate baseString and COSTUMER_SECRET)
```java
String signature=new HMACSha1SignatureService().getSignature(baseString,COSTUMER_SECRET,"");
//Signature is encoded before parsing (ONLY FOR THIS EXAMPLE, NOT NECESSARY FOR LIB LIKE RETROFIT,OKHTTP)
signature=encodeUrl(signature);
```
5. Generate Url (url after generated signature)
```java
// THIS IS A VERY BASIC EXAMPLE OF PARSING USER CAN USE ANY LATEST METHORD RETROFIT,OKHTTP,VOLLEY ETC
String parseUrl=BASE_URL+"?oauth_signature_method=HMAC-SHA1&oauth_consumer_key="+COSTUMER_KEY+"&oauth_version=1.0&oauth_timestamp="+timestamp+"&oauth_nonce="+nonce+"&oauth_signature="+ signature;
```
encodeUrl methord is as follow
```java
public String encodeUrl(String url)
{
String encodedurl="";
try {
encodedurl = URLEncoder.encode(url,"UTF-8");
Log.d("Encodeurl", encodedurl);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return encodedurl;
}
Retrofit is the best and powerful library currently avilable for a type-safe HTTP client for Android and Java
its very easy to integrate this library to retrofit write a interceptor
- Write a Interceptor as below (OAuthInterceptor)
public class OAuthInterceptor implements Interceptor {
/*THIS CLASS CONTAIN ERROR ITS BECAUSE THIS APP DOES NOT IMPORTED THE RETROFIT LIBRARY*/
/*IMPORT below dependency to gradel to fix error
*
* compile 'com.squareup.retrofit2:retrofit:2.1.0'
compile 'com.squareup.retrofit2:converter-gson:2.1.0'
compile 'com.squareup.okhttp3:okhttp:3.3.1'
compile 'com.squareup.okhttp3:logging-interceptor:3.3.1'
* */
private static final String OAUTH_CONSUMER_KEY = "oauth_consumer_key";
private static final String OAUTH_NONCE = "oauth_nonce";
private static final String OAUTH_SIGNATURE = "oauth_signature";
private static final String OAUTH_SIGNATURE_METHOD = "oauth_signature_method";
private static final String OAUTH_SIGNATURE_METHOD_VALUE = "HMAC-SHA1";
private static final String OAUTH_TIMESTAMP = "oauth_timestamp";
private static final String OAUTH_VERSION = "oauth_version";
private static final String OAUTH_VERSION_VALUE = "1.0";
private final String consumerKey;
private final String consumerSecret;
private OAuthInterceptor(String consumerKey, String consumerSecret) {
this.consumerKey = consumerKey;
this.consumerSecret = consumerSecret;
}
@Override
public Response intercept(Chain chain) throws IOException {
Request original = chain.request();
HttpUrl originalHttpUrl = original.url();
Log.d("URL", original.url().toString());
Log.d("URL", original.url().scheme());
Log.d("encodedpath", original.url().encodedPath());
Log.d("query", ""+original.url().query());
Log.d("path", ""+original.url().host());
Log.d("encodedQuery", ""+original.url().encodedQuery());
;
Log.d("method", ""+original.method());
////////////////////////////////////////////////////////////
final String nonce = new TimestampServiceImpl().getNonce();
final String timestamp = new TimestampServiceImpl().getTimestampInSeconds();
Log.d("nonce", nonce);
Log.d("time", timestamp);
String dynamicStructureUrl = original.url().scheme() + "://" + original.url().host() + original.url().encodedPath();
Log.d("ENCODED PATH", ""+dynamicStructureUrl);
String firstBaseString = original.method() + "&" + urlEncoded(dynamicStructureUrl);
Log.d("firstBaseString", firstBaseString);
String generatedBaseString = "";
if(original.url().encodedQuery()!=null) {
generatedBaseString = original.url().encodedQuery() + "&oauth_consumer_key=" + consumerKey + "&oauth_nonce=" + nonce + "&oauth_signature_method=HMAC-SHA1&oauth_timestamp=" + timestamp + "&oauth_version=1.0";
}
else
{
generatedBaseString = "oauth_consumer_key=" + consumerKey + "&oauth_nonce=" + nonce + "&oauth_signature_method=HMAC-SHA1&oauth_timestamp=" + timestamp + "&oauth_version=1.0";
}
ParameterList result = new ParameterList();
result.addQuerystring(generatedBaseString);
generatedBaseString=result.sort().asOauthBaseString();
Log.d("Sorted","00--"+result.sort().asOauthBaseString());
String secoundBaseString = "&" + generatedBaseString;
if (firstBaseString.contains("%3F")) {
Log.d("iff","yess iff");
secoundBaseString = "%26" + urlEncoded(generatedBaseString);
}
String baseString = firstBaseString + secoundBaseString;
String signature = new HMACSha1SignatureService().getSignature(baseString, consumerSecret, "");
Log.d("Signature", signature);
HttpUrl url = originalHttpUrl.newBuilder()
.addQueryParameter(OAUTH_SIGNATURE_METHOD, OAUTH_SIGNATURE_METHOD_VALUE)
.addQueryParameter(OAUTH_CONSUMER_KEY, consumerKey)
.addQueryParameter(OAUTH_VERSION, OAUTH_VERSION_VALUE)
.addQueryParameter(OAUTH_TIMESTAMP, timestamp)
.addQueryParameter(OAUTH_NONCE, nonce)
.addQueryParameter(OAUTH_SIGNATURE, signature)
.build();
// Request customization: add request headers
Request.Builder requestBuilder = original.newBuilder()
.url(url);
Request request = requestBuilder.build();
return chain.proceed(request);
}
public static final class Builder {
private String consumerKey;
private String consumerSecret;
private int type;
public Builder consumerKey(String consumerKey) {
if (consumerKey == null) throw new NullPointerException("consumerKey = null");
this.consumerKey = consumerKey;
return this;
}
public Builder consumerSecret(String consumerSecret) {
if (consumerSecret == null) throw new NullPointerException("consumerSecret = null");
this.consumerSecret = consumerSecret;
return this;
}
public OAuthInterceptor build() {
if (consumerKey == null) throw new IllegalStateException("consumerKey not set");
if (consumerSecret == null) throw new IllegalStateException("consumerSecret not set");
return new OAuthInterceptor(consumerKey, consumerSecret);
}
}
public String urlEncoded(String url) {
String encodedurl = "";
try {
encodedurl = URLEncoder.encode(url, "UTF-8");
Log.d("TEST", encodedurl);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return encodedurl;
}
}- AddInteceptor into Retrofit Methord
OAuthInterceptor oauth1Woocommerce = new OAuthInterceptor.Builder()
.consumerKey(CUSTOMER_KEY_HERE)
.consumerSecret(CUSTOMER_SECERT_HERE)
.build();
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient client = new OkHttpClient.Builder()
.connectTimeout(20, TimeUnit.SECONDS)
.writeTimeout(20, TimeUnit.SECONDS)
.readTimeout(30, TimeUnit.SECONDS)
.addInterceptor(interceptor)
.addInterceptor(oauth1Woocommerce)// Interceptor oauth1Woocommerce added
.build();
mRetrofit = new Retrofit.Builder()
.baseUrl(url).addConverterFactory(GsonConverterFactory.create())
.client(client)
.build();do the rest of the retrofit fuctions
A Big Thanks to (scribe:1.3.5) library which help me referring and guide to generate correct signature of OAUTH
The MIT License (MIT)
Copyright (c) 2016 Ramesh M Nair
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