| 1 | /* |
| 2 | * Tomdroid |
| 3 | * Tomboy on Android |
| 4 | * http://www.launchpad.net/tomdroid |
| 5 | * |
| 6 | * Copyright 2009, Benoit Garret <benoit.garret_launchpad@gadz.org> |
| 7 | * |
| 8 | * This file is part of Tomdroid. |
| 9 | * |
| 10 | * Tomdroid is free software: you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation, either version 3 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * Tomdroid is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with Tomdroid. If not, see <http://www.gnu.org/licenses/>. |
| 22 | */ |
| 23 | package org.tomdroid.sync.web; |
| 24 | |
| 25 | import java.io.UnsupportedEncodingException; |
| 26 | import java.net.UnknownHostException; |
| 27 | |
| 28 | import oauth.signpost.OAuthConsumer; |
| 29 | import oauth.signpost.OAuthProvider; |
| 30 | import oauth.signpost.commonshttp.CommonsHttpOAuthConsumer; |
| 31 | import oauth.signpost.commonshttp.CommonsHttpOAuthProvider; |
| 32 | import oauth.signpost.exception.OAuthCommunicationException; |
| 33 | import oauth.signpost.exception.OAuthExpectationFailedException; |
| 34 | import oauth.signpost.exception.OAuthMessageSignerException; |
| 35 | import oauth.signpost.exception.OAuthNotAuthorizedException; |
| 36 | |
| 37 | import org.apache.http.HttpRequest; |
| 38 | import org.apache.http.HttpResponse; |
| 39 | import org.apache.http.client.methods.HttpGet; |
| 40 | import org.apache.http.client.methods.HttpPut; |
| 41 | import org.apache.http.entity.StringEntity; |
| 42 | import org.json.JSONException; |
| 43 | import org.json.JSONObject; |
| 44 | import org.tomdroid.ui.Tomdroid; |
| 45 | import org.tomdroid.util.Preferences; |
| 46 | |
| 47 | import android.net.Uri; |
| 48 | import android.util.Log; |
| 49 | |
| 50 | public class OAuthConnection extends WebConnection { |
| 51 | |
| 52 | private static final String TAG = "OAuthConnection"; |
| 53 | private static final String CONSUMER_KEY = "anyone"; |
| 54 | private static final String CONSUMER_SECRET = "anyone"; |
| 55 | |
| 56 | private OAuthConsumer consumer = null; |
| 57 | |
| 58 | public String accessToken = ""; |
| 59 | public String accessTokenSecret = ""; |
| 60 | public String requestToken = ""; |
| 61 | public String requestTokenSecret = ""; |
| 62 | public boolean oauth10a = false; |
| 63 | public String authorizeUrl = ""; |
| 64 | public String requestTokenUrl = ""; |
| 65 | public String accessTokenUrl = ""; |
| 66 | public String rootApi = ""; |
| 67 | public String userApi = ""; |
| 68 | |
| 69 | public OAuthConnection() { |
| 70 | |
| 71 | consumer = new CommonsHttpOAuthConsumer( |
| 72 | CONSUMER_KEY, |
| 73 | CONSUMER_SECRET); |
| 74 | } |
| 75 | |
| 76 | public boolean isAuthenticated() { |
| 77 | |
| 78 | if (accessToken.equals("") || accessTokenSecret.equals("")) |
| 79 | return false; |
| 80 | else |
| 81 | return true; |
| 82 | } |
| 83 | |
| 84 | private OAuthProvider getProvider() { |
| 85 | |
| 86 | // Use the provider bundled with signpost, the android libs are buggy |
| 87 | // See: http://code.google.com/p/oauth-signpost/issues/detail?id=20 |
| 88 | OAuthProvider provider = new CommonsHttpOAuthProvider( |
| 89 | requestTokenUrl, |
| 90 | accessTokenUrl, |
| 91 | authorizeUrl); |
| 92 | provider.setOAuth10a(oauth10a); |
| 93 | |
| 94 | return provider; |
| 95 | } |
| 96 | |
| 97 | private void sign(HttpRequest request) { |
| 98 | |
| 99 | if (isAuthenticated()) |
| 100 | consumer.setTokenWithSecret(accessToken, accessTokenSecret); |
| 101 | else |
| 102 | return; |
| 103 | |
| 104 | // TODO: figure out if we should throw exceptions |
| 105 | try { |
| 106 | consumer.sign(request); |
| 107 | } catch (OAuthMessageSignerException e1) { |
| 108 | e1.printStackTrace(); |
| 109 | } catch (OAuthExpectationFailedException e1) { |
| 110 | e1.printStackTrace(); |
| 111 | } catch (OAuthCommunicationException e) { |
| 112 | // TODO Auto-generated catch block |
| 113 | e.printStackTrace(); |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | public Uri getAuthorizationUrl(String server) throws UnknownHostException { |
| 118 | |
| 119 | String url = ""; |
| 120 | |
| 121 | // this method shouldn't have been called |
| 122 | if (isAuthenticated()) |
| 123 | return null; |
| 124 | |
| 125 | rootApi = server+"/api/1.0/"; |
| 126 | |
| 127 | AnonymousConnection connection = new AnonymousConnection(); |
| 128 | String response = connection.get(rootApi); |
| 129 | |
| 130 | JSONObject jsonResponse; |
| 131 | |
| 132 | try { |
| 133 | jsonResponse = new JSONObject(response); |
| 134 | |
| 135 | accessTokenUrl = jsonResponse.getString("oauth_access_token_url"); |
| 136 | requestTokenUrl = jsonResponse.getString("oauth_request_token_url"); |
| 137 | authorizeUrl = jsonResponse.getString("oauth_authorize_url"); |
| 138 | |
| 139 | } catch (JSONException e) { |
| 140 | e.printStackTrace(); |
| 141 | return null; |
| 142 | } |
| 143 | |
| 144 | OAuthProvider provider = getProvider(); |
| 145 | |
| 146 | try { |
| 147 | // the argument is the callback used when the remote authorization is complete |
| 148 | url = provider.retrieveRequestToken(consumer, "tomdroid://sync"); |
| 149 | |
| 150 | requestToken = consumer.getToken(); |
| 151 | requestTokenSecret = consumer.getTokenSecret(); |
| 152 | oauth10a = provider.isOAuth10a(); |
| 153 | accessToken = ""; |
| 154 | accessTokenSecret = ""; |
| 155 | saveConfiguration(); |
| 156 | |
| 157 | } catch (OAuthMessageSignerException e1) { |
| 158 | e1.printStackTrace(); |
| 159 | return null; |
| 160 | } catch (OAuthNotAuthorizedException e1) { |
| 161 | e1.printStackTrace(); |
| 162 | return null; |
| 163 | } catch (OAuthExpectationFailedException e1) { |
| 164 | e1.printStackTrace(); |
| 165 | return null; |
| 166 | } catch (OAuthCommunicationException e1) { |
| 167 | e1.printStackTrace(); |
| 168 | return null; |
| 169 | } |
| 170 | |
| 171 | if (Tomdroid.LOGGING_ENABLED) Log.i(TAG, "Authorization URL : "+url); |
| 172 | |
| 173 | return Uri.parse(url); |
| 174 | } |
| 175 | |
| 176 | public boolean getAccess(String verifier) throws UnknownHostException { |
| 177 | |
| 178 | Log.i(TAG, "Verifier: "+verifier); |
| 179 | |
| 180 | // this method shouldn't have been called |
| 181 | if (isAuthenticated()) |
| 182 | return false; |
| 183 | |
| 184 | if (!requestToken.equals("") && !requestTokenSecret.equals("")) { |
| 185 | consumer.setTokenWithSecret(requestToken, requestTokenSecret); |
| 186 | if(Tomdroid.LOGGING_ENABLED) { |
| 187 | Log.d(TAG, "Added request token "+requestTokenSecret+" and request token secret "+requestTokenSecret); |
| 188 | } |
| 189 | } |
| 190 | else |
| 191 | return false; |
| 192 | |
| 193 | OAuthProvider provider = getProvider(); |
| 194 | |
| 195 | try { |
| 196 | provider.retrieveAccessToken(consumer, verifier); |
| 197 | } catch (OAuthMessageSignerException e1) { |
| 198 | e1.printStackTrace(); |
| 199 | return false; |
| 200 | } catch (OAuthNotAuthorizedException e1) { |
| 201 | e1.printStackTrace(); |
| 202 | return false; |
| 203 | } catch (OAuthExpectationFailedException e1) { |
| 204 | e1.printStackTrace(); |
| 205 | return false; |
| 206 | } catch (OAuthCommunicationException e1) { |
| 207 | e1.printStackTrace(); |
| 208 | return false; |
| 209 | } |
| 210 | |
| 211 | // access has been granted, store the access token |
| 212 | accessToken = consumer.getToken(); |
| 213 | accessTokenSecret = consumer.getTokenSecret(); |
| 214 | requestToken = ""; |
| 215 | requestTokenSecret = ""; |
| 216 | |
| 217 | try { |
| 218 | JSONObject response = new JSONObject(get(rootApi)); |
| 219 | // append a slash to the url, else the signature will fail |
| 220 | userApi = response.getJSONObject("user-ref").getString("api-ref"); |
| 221 | } catch (JSONException e) { |
| 222 | // TODO Auto-generated catch block |
| 223 | e.printStackTrace(); |
| 224 | } |
| 225 | |
| 226 | saveConfiguration(); |
| 227 | |
| 228 | if (Tomdroid.LOGGING_ENABLED) Log.i(TAG, "Got access token "+consumer.getToken()+"."); |
| 229 | |
| 230 | return true; |
| 231 | } |
| 232 | |
| 233 | @Override |
| 234 | public String get(String uri) throws java.net.UnknownHostException { |
| 235 | |
| 236 | // Prepare a request object |
| 237 | HttpGet httpGet = new HttpGet(uri); |
| 238 | sign(httpGet); |
| 239 | HttpResponse response = execute(httpGet); |
| 240 | return parseResponse(response); |
| 241 | } |
| 242 | |
| 243 | @Override |
| 244 | public String put(String uri, String data) throws UnknownHostException { |
| 245 | |
| 246 | // Prepare a request object |
| 247 | HttpPut httpPut = new HttpPut(uri); |
| 248 | |
| 249 | try { |
| 250 | // The default http content charset is ISO-8859-1, JSON requires UTF-8 |
| 251 | httpPut.setEntity(new StringEntity(data, "UTF-8")); |
| 252 | } catch (UnsupportedEncodingException e1) { |
| 253 | e1.printStackTrace(); |
| 254 | return null; |
| 255 | } |
| 256 | |
| 257 | httpPut.setHeader("Content-Type", "application/json"); |
| 258 | sign(httpPut); |
| 259 | |
| 260 | // Do not handle redirects, we need to sign the request again as the old signature will be invalid |
| 261 | HttpResponse response = execute(httpPut); |
| 262 | return parseResponse(response); |
| 263 | } |
| 264 | |
| 265 | private void saveConfiguration() { |
| 266 | |
| 267 | Preferences.putString(Preferences.Key.ACCESS_TOKEN, accessToken); |
| 268 | Preferences.putString(Preferences.Key.ACCESS_TOKEN_SECRET, accessTokenSecret); |
| 269 | Preferences.putString(Preferences.Key.ACCESS_TOKEN_URL, accessTokenUrl); |
| 270 | Preferences.putString(Preferences.Key.REQUEST_TOKEN, requestToken); |
| 271 | Preferences.putString(Preferences.Key.REQUEST_TOKEN_SECRET, requestTokenSecret); |
| 272 | Preferences.putString(Preferences.Key.REQUEST_TOKEN_URL, requestTokenUrl); |
| 273 | Preferences.putBoolean(Preferences.Key.OAUTH_10A, oauth10a); |
| 274 | Preferences.putString(Preferences.Key.AUTHORIZE_URL, authorizeUrl); |
| 275 | Preferences.putString(Preferences.Key.SYNC_SERVER_ROOT_API, rootApi); |
| 276 | Preferences.putString(Preferences.Key.SYNC_SERVER_USER_API, userApi); |
| 277 | } |
| 278 | } |