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POhttp OAuth request
 

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  1. POhttp OAuth request
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    <p>I am new to network programming.I am trying to make a POST request based on OAuth 1.0 on dropbox. The following is the code i used to make the post request.Is that how i am supposed to do it?</p> <pre><code>HttpPost httpPost; Log.d("HTTP","Exec"); httpPost = new HttpPost("https://api.dropbox.com/1/shares/dropbox/a.jpg"); Log.d("HTTP","Execute"); try { List&lt;NameValuePair&gt; nameValuePairs = new ArrayList&lt;NameValuePair&gt;(9); nameValuePairs.add(new BasicNameValuePair("oauth_consumer_key", "2f2y1dyuqhp58ek")); nameValuePairs.add(new BasicNameValuePair("oauth_token", token)); nameValuePairs.add(new BasicNameValuePair("oauth_nonce", String.valueOf(millis))); nameValuePairs.add(new BasicNameValuePair("oauth_timestamp", String.valueOf(millis))); nameValuePairs.add(new BasicNameValuePair("oauth_signature_method", "HMAC-SHA1")); nameValuePairs.add(new BasicNameValuePair("oauth_version", "1.0")); nameValuePairs.add(new BasicNameValuePair("oauth_signature", sw));//this is url encoded //nameValuePairs.add(new BasicNameValuePair("path", "/a.jpg")); //nameValuePairs.add(new BasicNameValuePair("root", "dropbox")); httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); Log.d("HTTP","requesting"); HttpResponse response = httpclient.execute(httpPost); HttpEntity entity = response.getEntity(); InputStream is = entity.getContent(); String result; BufferedReader reader = new BufferedReader(new InputStreamReader(is)); StringBuilder sb = new StringBuilder(); String line = null; line = reader.readLine(); sb.append(line); result = sb.toString(); is.close(); //String s=response.getEntity().getContent().; Log.d("resp", result); //tv.setText(response.toString()); } catch (ClientProtocolException e) { } catch (IOException e) { } </code></pre> <p>The signature base string is:</p> <pre><code>POST&amp;https%3A%2F%2Fapi.dropbox.com%2F1%2Fshares%2Fdropbox%2Fa.jpg&amp;oauth_consumer_key%3D2f2y1dyuqhp58ek%26oauth_nonce%3D1340729641%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1340729641%26oauth_token%3Dwz27t6thob0fbxl%26oauth_version%3D1.0 </code></pre> <p>T Any clue what the problem might be?The response that i am getting is 'invalid signature Base string'which is shown in the logCat.</p> <p>LogCat:</p> <pre><code>06-26 22:30:46.125: I/System.out(364): debugger has settled (1322) 06-26 22:30:49.203: I/ActivityManager(66): Displayed activity cloud.mobile/.MCActivity: 9393 ms (total 9393 ms) 06-26 22:30:49.243: W/ActivityManager(66): Launch timeout has expired, giving up wake lock! 06-26 22:30:57.124: D/HTTP(364): wz27t6thob0fbxl 06-26 22:30:59.197: D/HTTP(364): Exe 06-26 22:30:59.886: D/HTTP(364): 1340730059 06-26 22:31:00.824: D/HTTP(364): POST&amp;https%3A%2F%2Fapi.dropbox.com%2F1%2Fshares%2Fdropbox%2Fa.jpg&amp;oauth_consumer_key%3D2f2y1dyuqhp58ek%26oauth_nonce%3D1340730059%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1340730059%26oauth_token%3Dwz27t6thob0fbxl%26oauth_version%3D1.0 06-26 22:31:00.824: D/HTTP(364): xLNJrQ5R9jxDTnZcpQ3HLkLBxxQ= 06-26 22:31:00.973: D/HTTP(364): Exe 06-26 22:31:00.983: D/HTTP(364): Exec 06-26 22:31:01.023: D/HTTP(364): Execute 06-26 22:31:01.664: D/HTTP(364): requesting 06-26 22:31:12.243: D/dalvikvm(364): GC_FOR_MALLOC freed 5195 objects / 296968 bytes in 185ms 06-26 22:31:25.063: I/global(364): Default buffer size used in BufferedReader constructor. It would be better to be explicit if an 8k-char buffer is required. 06-26 22:31:28.545: D/resp(364): {"error": "Invalid signature. Expected signature base string: POST&amp;https%3A%2F%2Fapi.dropbox.com%2F1%2Fshares%2Fdropbox%2Fa.jpg&amp;oauth_consumer_key%3D2f2y1dyuqhp58ek%26oauth_nonce%3D1340730059%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1340730059%26oauth_token%3Dwz27t6thob0fbxl%26oauth_version%3D1.0"} </code></pre> <p>Well,this "expected signature base string(shown above)"is exactly same as the one i generated and converted to oauth_signature using HMAC-SHAH.. Am i missing something?</p>
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