1 | package oauth.signpost.signature;
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2 |
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3 | import java.util.Iterator;
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4 |
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5 | import oauth.signpost.OAuth;
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6 | import oauth.signpost.http.HttpParameters;
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7 | import oauth.signpost.http.HttpRequest;
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8 |
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9 | /**
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10 | * Writes to the HTTP Authorization header field.
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11 | *
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12 | * @author Matthias Kaeppler
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13 | */
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14 | public class AuthorizationHeaderSigningStrategy implements SigningStrategy {
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15 |
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16 | private static final long serialVersionUID = 1L;
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17 |
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18 | public String writeSignature(String signature, HttpRequest request,
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19 | HttpParameters requestParameters) {
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20 | StringBuilder sb = new StringBuilder();
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21 |
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22 | sb.append("OAuth ");
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23 |
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24 | // add the realm parameter, if any
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25 | if (requestParameters.containsKey("realm")) {
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26 | sb.append(requestParameters.getAsHeaderElement("realm"));
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27 | sb.append(", ");
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28 | }
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29 |
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30 | // add all (x_)oauth parameters
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31 | HttpParameters oauthParams = requestParameters.getOAuthParameters();
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32 | oauthParams.put(OAuth.OAUTH_SIGNATURE, signature, true);
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33 |
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34 | Iterator<String> iter = oauthParams.keySet().iterator();
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35 | while (iter.hasNext()) {
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36 | String key = iter.next();
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37 | sb.append(oauthParams.getAsHeaderElement(key));
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38 | if (iter.hasNext()) {
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39 | sb.append(", ");
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40 | }
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41 | }
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42 |
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43 | String header = sb.toString();
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44 | OAuth.debugOut("Auth Header", header);
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45 | request.setHeader(OAuth.HTTP_AUTHORIZATION_HEADER, header);
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46 |
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47 | return header;
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48 | }
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49 |
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50 | }
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