I'm currently porting a webservice I've built to work with Google App Engine. One of the main functions in the webservice is to upload an image (a profile picture, for example). Currently what I do is:
Now in order to port the file upload to App Engine I'm using Google Cloud Storage and following this tutorial: https://cloud.google.com/appengine/docs/php/googlestorage/user_upload
I'm trying to get the file upload to work with my Android app the following way:
CloudStorageTools::createUploadUrl.createUploadUrl (I quote from google's docs) with the uploaded file. But how can this script know who uploaded the file it got? I can't pass any parameters indicating who uploaded the file to createUploadUrl so I can't insert the file name to a user in the Cloud SQL database, so now theres only a file not associated with anything in Cloud Storage.Any hints? Am I missing something?
I'm posting this as a separate answer because a) it's different approach than the first answer, and b) I'd advocate for my other answer over this one because I think it's best to let GAE handle auth. However, I think you can do what you're trying to do this way:
Instead of routing a singular URL to your upload handler, use a regex match like this in your app.yaml to route any matching URLs to your handler:
handlers:
- url: upload_handler/(.*)
script: my-php-script-that-uploads-stuff.php
Then when invoking createUploadURL, simply pass in your API_KEY after the 'upload_handler/' as a query argument, e.g.
$upload_url = CloudStorageTools::createUploadUrl(sprintf('/upload_handler/?API_KEY=%s', $API_KEY), $options);
Then in my-php-script-that-uploads-stuff.php:
parse_str(parse_url($_SERVER['REQUEST_URI'])['query'])
This will parse the request URL to get the query string and then parse the query string, populating the value of API_KEY with the value passed in the URL in your local scope.
I just tested this pattern of extracting stuff from the request URL in a php script in with dev_appserver and it worked.
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