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Add Oauth HMACSha256SignatureService#1034
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51 changes: 51 additions & 0 deletions...va-core/src/main/java/com/github/scribejava/core/services/HMACSha256SignatureService.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| package com.github.scribejava.core.services; | ||
| import com.github.scribejava.core.exceptions.OAuthSignatureException; | ||
| import com.github.scribejava.core.utils.OAuthEncoder; | ||
| import com.github.scribejava.core.utils.Preconditions; | ||
| import javax.crypto.Mac; | ||
| import javax.crypto.spec.SecretKeySpec; | ||
| import java.io.UnsupportedEncodingException; | ||
| import java.security.InvalidKeyException; | ||
| import java.security.NoSuchAlgorithmException; | ||
| import java.util.Base64; | ||
| /** | ||
| * @author nick.yin | ||
| * @date 2022/2/10 | ||
| * @since 2022/2/10 | ||
| */ | ||
| @SuppressWarnings("all") | ||
| public class HMACSha256SignatureService implements SignatureService { | ||
| private static final String EMPTY_STRING = ""; | ||
| private static final String CARRIAGE_RETURN = "\r\n"; | ||
| private static final String UTF8 = "UTF-8"; | ||
| private static final String HMAC_SHA256 = "HmacSHA256"; | ||
| private static final String METHOD = "HMAC-SHA256"; | ||
| @Override | ||
| public String getSignature(String baseString, String apiSecret, String tokenSecret) { | ||
| try { | ||
| Preconditions.checkEmptyString(baseString, "Base string cant be null or empty string"); | ||
| Preconditions.checkEmptyString(apiSecret, "Api secret cant be null or empty string"); | ||
| return doSign(baseString, OAuthEncoder.encode(apiSecret) + '&' + OAuthEncoder.encode(tokenSecret)); | ||
| } catch (UnsupportedEncodingException | NoSuchAlgorithmException | InvalidKeyException | RuntimeException e) { | ||
| throw new OAuthSignatureException(baseString, e); | ||
| } | ||
| } | ||
| private String doSign(String toSign, String keyString) throws UnsupportedEncodingException, | ||
| NoSuchAlgorithmException, InvalidKeyException { | ||
| final SecretKeySpec key = new SecretKeySpec(keyString.getBytes(UTF8), HMAC_SHA256); | ||
| final Mac mac = Mac.getInstance(HMAC_SHA256); | ||
| mac.init(key); | ||
| final byte[] bytes = mac.doFinal(toSign.getBytes(UTF8)); | ||
| return Base64.getEncoder().encodeToString(bytes).replace(CARRIAGE_RETURN, EMPTY_STRING); | ||
| } | ||
| @Override | ||
| public String getSignatureMethod() { | ||
| return METHOD; | ||
| } | ||
| } |
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