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POiphone image to Ruby on Rails - bad content body, parse_multipart
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  1. POiphone image to Ruby on Rails - bad content body, parse_multipart
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    copied!<p>I am trying to upload an image from the iPhone to a Ruby on Rails (RoR) server and I am getting the following error:</p> <pre><code>!\ FAILSAFE /!\ Thu Nov 11 23:51:39 CET 2010 Status: 500 Internal Server Error bad content body /usr/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/utils.rb:319:in `parse_multipart' </code></pre> <p>The communication to the RoR site works fine when I leave out the line below where I set the value for the string with multipart/form-data. </p> <p>iPhone code:</p> <pre><code> NSString *imagePath = [[NSBundle mainBundle] pathForResource:@"logo1" ofType:@"png"]; NSData *imageData = [NSData dataWithContentsOfFile:imagePath]; NSString *urlString = [NSString stringWithFormat:@"%@/user/iphone_results_to_website/", serverString ]; NSMutableURLRequest *imageRequest = [[[NSMutableURLRequest alloc] init] autorelease]; [imageRequest setURL:[NSURL URLWithString:urlString]]; [imageRequest setHTTPMethod:@"POST"]; NSString *boundary = [NSString stringWithString:@"--------------------------- 14737809831466499882746641449"]; // Works fine without this next line: [imageRequest setValue: [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary] forHTTPHeaderField:@"Content-Type"]; NSMutableData *body = [NSMutableData dataWithCapacity:[imageData length] + 512]; [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"userfile\"; filename=\"logo1.png\"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[NSData dataWithData:imageData]]; [body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; [imageRequest setHTTPBody:body]; theConnection = [[NSURLConnection alloc] initWithRequest:imageRequest delegate:self]; if(theConnection) { theConnectionData = [[NSMutableData data] retain]; // theData is an instance variable } else { // failed to make connection } </code></pre> <p>On the RoR side I have RMagick, ImageMagick and attachment_fu installed and I have setup a Photo model for attachment_fu as:</p> <p>RoR Photo model:</p> <pre><code>class Photo &lt; ActiveRecord::Base has_attachment :storage =&gt; :file_system, :resize_to =&gt; '640x480', :thumbnails =&gt; { :thumb =&gt; '160x120', :tiny =&gt; '50&gt;' }, :max_size =&gt; 5.megabytes, :content_type =&gt; :image, :processor =&gt; 'Rmagick' validates_as_attachment belongs_to :user ########################################################################### def uploaded_picture=(picture_field) self.name = base_part_of(picture_field.original_fielname) self.content_type = picture_field.content_type.chomp self.data = picture_field.read end # uploaded_picture ########################################################################### def base_part_of(file_name) File.basename(file_name).gsub(/[^\w._-]/, '') end # base_part_of ########################################################################### end </code></pre> <p>Does anyone know what the problem could be? Could the problem be in my Objective-C code or in the RoR side? </p>
 

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