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PORails POST Content-type = image/jpeg
 

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    <p>I have an axis camera which POSTS data to an address I give it. I would like it to post data to a rails application, but I haven't found any examples of how to do that. The only information I have to work with is the header for the post request. I pulled a few things out, but here's what I got:</p> <pre><code>REQUEST_METHOD = POST QUERY_STRING = CONTENT_TYPE = image/jpeg DOCUMENT_ROOT = /var/www/staging/public REQUEST_URI = /camera/1/images? SCRIPT_NAME = PATH_INFO = /camera/1/images HTTP_CONTENT_DISPOSITION = attachment; filename="image09-12-16_21-16-28-90.jpg" _ = _ </code></pre> <p>As far as I can tell, The request itself contains the JPEG Image.</p> <p>Axis publishes the following as a CGI script to save the images. It works, but I want it to be a part of my Rails app:</p> <pre><code>#!/usr/bin/perl -w my $upload_dir = "/var/www/cgi-bin/upload/"; print "Content-Type: text/plain\r\n\r\n"; print "Upload OK\r\n"; my $file_name = $ENV{'HTTP_CONTENT_DISPOSITION'}; $file_name =~ s/^attachment; filename=\"(.*)\"$/$1/; open (IMG_FILE, "&gt; $upload_dir$file_name") or die "can't open &gt;$upload_dir$file_name"; binmode(IMG_FILE); while (&lt;STDIN&gt;) { print IMG_FILE $_; } chmod 0666, "$upload_dir$file_name"; exit 0; </code></pre> <p>So the filename is in ENV{'HTTP_CONTENT_DISPOSITION'}, which is clear in both the headers and the sample code. It seems, from the perl script, that the image data is all contained in STDIN. I have tried the following in rails:</p> <pre><code>imagefile = File.new("test_file.jpg","w+") imagefile &lt;&lt; STDIN.read imagefile.close </code></pre> <p>but it did not work. The file test_file.jpg was empty.</p> <p>Is there anything I am mission? Does anyone know how to save the request data as a file?</p> <p>Does anyone know of any good libraries that allow http upload from Axis webcams?</p>
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