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POGetting 403 (Forbidden) when attempting to POST file to Google Cloud Storage from service account
 

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  1. POGetting 403 (Forbidden) when attempting to POST file to Google Cloud Storage from service account
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    <p>I'm wondering if anyone can tell me the proper syntax &amp; formatting for a service account to send a POST Object to bucket request? I'm attempting it programmatically using <a href="http://hc.apache.org/user-docs.html" rel="nofollow">the HttpComponents library</a>. I manage to get a token from my GoogleCredential, but every time I construct the POST request, I get:</p> <blockquote> <p>HTTP/1.1 403 Forbidden</p> <p><code>&lt;?xml version='1.0' encoding='UTF-8'?&gt;&lt;Error&gt;&lt;Code&gt;AccessDenied&lt;/Code&gt;&lt;Message&gt;Access denied.&lt;/Message&gt;&lt;Details</code>>bucket-name<code>&lt;/Details&gt;&lt;/Error</code>></p> </blockquote> <p>The Google <a href="http://developers.google.com/storage/docs/reference-methods" rel="nofollow">documentation</a> that describes the request methods, mentions posting using html forms, but I'm hoping that wasn't suggesting the ONLY way to get the job done. I know that HttpComponents has a way to explicitly create form data by using <a href="http://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/org/apache/http/client/entity/UrlEncodedFormEntity.html" rel="nofollow">UrlEncodedFormEntity</a>, but it doesn't support multipart data. Which is why I went with using the MultipartEntity class. My code is below:</p> <pre><code>MultipartEntity entity = new MultipartEntity( HttpMultipartMode.BROWSER_COMPATIBLE ); String token = credential.getAccessToken(); entity.addPart("Authorization", new StringBody("OAuth " + token)); String date = formatDate(new Date()); entity.addPart("Date", new StringBody(date)); entity.addPart("Content-Type", new StringBody("multipart/form-data")); entity.addPart("bucket", new StringBody(bucket)); entity.addPart("key", new StringBody("fileName")); entity.addPart("success_action_redirect", new StringBody("/storage")); File uploadFile = new File("pathToFile"); FileBody fileBody = new FileBody(uploadFile, "text/xml"); entity.addPart("file", fileBody); httppost.setEntity(entity); System.out.println("Posting URI = "+httppost.toString()); HttpResponse response = client.execute(httppost); HttpEntity resp_entity = response.getEntity(); </code></pre> <p>As I mentioned, I am able to get an actual token, so I'm pretty sure the problem is in how I've formed the request as opposed to not being properly authenticated.</p> <p>Keep in mind:</p> <ol> <li>This is being performed by a service account.</li> <li>Which means that it does have Read/Write access</li> </ol> <p>Thanks for reading, and I appreciate any help!</p>
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    1. COCan you post the contents of ``bucket`` and ``httppost.toString()``? Also, I'm not sure if you should be setting Content-Encoding to UTF-8 like that.
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    2. COby the way, i'm not too sure about any of it =)... but I think you are right about the content-encoding. I just threw it in there for because it wasn't working without it either. Just was testing different fields. I'll edit it it out.
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    3. COHow did you decide between POST and PUT?
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